# This file was automatically generated by SWIG (http://www.swig.org).
# Version 2.0.4
#
# Do not make changes to this file unless you know what you are doing--modify
# the SWIG interface file instead.



from sys import version_info
if version_info >= (2,6,0):
    def swig_import_helper():
        from os.path import dirname
        import imp
        fp = None
        try:
            fp, pathname, description = imp.find_module('_ogr', [dirname(__file__)])
        except ImportError:
            import _ogr
            return _ogr
        if fp is not None:
            try:
                _mod = imp.load_module('_ogr', fp, pathname, description)
            finally:
                fp.close()
            return _mod
    _ogr = swig_import_helper()
    del swig_import_helper
else:
    import _ogr
del version_info
try:
    _swig_property = property
except NameError:
    pass # Python < 2.2 doesn't have 'property'.
def _swig_setattr_nondynamic(self,class_type,name,value,static=1):
    if (name == "thisown"): return self.this.own(value)
    if (name == "this"):
        if type(value).__name__ == 'SwigPyObject':
            self.__dict__[name] = value
            return
    method = class_type.__swig_setmethods__.get(name,None)
    if method: return method(self,value)
    if (not static):
        self.__dict__[name] = value
    else:
        raise AttributeError("You cannot add attributes to %s" % self)

def _swig_setattr(self,class_type,name,value):
    return _swig_setattr_nondynamic(self,class_type,name,value,0)

def _swig_getattr(self,class_type,name):
    if (name == "thisown"): return self.this.own()
    method = class_type.__swig_getmethods__.get(name,None)
    if method: return method(self)
    raise AttributeError(name)

def _swig_repr(self):
    try: strthis = "proxy of " + self.this.__repr__()
    except: strthis = ""
    return "<%s.%s; %s >" % (self.__class__.__module__, self.__class__.__name__, strthis,)

try:
    _object = object
    _newclass = 1
except AttributeError:
    class _object : pass
    _newclass = 0


def _swig_setattr_nondynamic_method(set):
    def set_attr(self,name,value):
        if (name == "thisown"): return self.this.own(value)
        if hasattr(self,name) or (name == "this"):
            set(self,name,value)
        else:
            raise AttributeError("You cannot add attributes to %s" % self)
    return set_attr


wkb25DBit = _ogr.wkb25DBit
wkb25Bit = _ogr.wkb25Bit
wkbUnknown = _ogr.wkbUnknown
wkbPoint = _ogr.wkbPoint
wkbLineString = _ogr.wkbLineString
wkbPolygon = _ogr.wkbPolygon
wkbMultiPoint = _ogr.wkbMultiPoint
wkbMultiLineString = _ogr.wkbMultiLineString
wkbMultiPolygon = _ogr.wkbMultiPolygon
wkbGeometryCollection = _ogr.wkbGeometryCollection
wkbCircularString = _ogr.wkbCircularString
wkbCompoundCurve = _ogr.wkbCompoundCurve
wkbCurvePolygon = _ogr.wkbCurvePolygon
wkbMultiCurve = _ogr.wkbMultiCurve
wkbMultiSurface = _ogr.wkbMultiSurface
wkbCurve = _ogr.wkbCurve
wkbSurface = _ogr.wkbSurface
wkbPolyhedralSurface = _ogr.wkbPolyhedralSurface
wkbTIN = _ogr.wkbTIN
wkbTriangle = _ogr.wkbTriangle
wkbNone = _ogr.wkbNone
wkbLinearRing = _ogr.wkbLinearRing
wkbCircularStringZ = _ogr.wkbCircularStringZ
wkbCompoundCurveZ = _ogr.wkbCompoundCurveZ
wkbCurvePolygonZ = _ogr.wkbCurvePolygonZ
wkbMultiCurveZ = _ogr.wkbMultiCurveZ
wkbMultiSurfaceZ = _ogr.wkbMultiSurfaceZ
wkbCurveZ = _ogr.wkbCurveZ
wkbSurfaceZ = _ogr.wkbSurfaceZ
wkbPolyhedralSurfaceZ = _ogr.wkbPolyhedralSurfaceZ
wkbTINZ = _ogr.wkbTINZ
wkbTriangleZ = _ogr.wkbTriangleZ
wkbPointM = _ogr.wkbPointM
wkbLineStringM = _ogr.wkbLineStringM
wkbPolygonM = _ogr.wkbPolygonM
wkbMultiPointM = _ogr.wkbMultiPointM
wkbMultiLineStringM = _ogr.wkbMultiLineStringM
wkbMultiPolygonM = _ogr.wkbMultiPolygonM
wkbGeometryCollectionM = _ogr.wkbGeometryCollectionM
wkbCircularStringM = _ogr.wkbCircularStringM
wkbCompoundCurveM = _ogr.wkbCompoundCurveM
wkbCurvePolygonM = _ogr.wkbCurvePolygonM
wkbMultiCurveM = _ogr.wkbMultiCurveM
wkbMultiSurfaceM = _ogr.wkbMultiSurfaceM
wkbCurveM = _ogr.wkbCurveM
wkbSurfaceM = _ogr.wkbSurfaceM
wkbPolyhedralSurfaceM = _ogr.wkbPolyhedralSurfaceM
wkbTINM = _ogr.wkbTINM
wkbTriangleM = _ogr.wkbTriangleM
wkbPointZM = _ogr.wkbPointZM
wkbLineStringZM = _ogr.wkbLineStringZM
wkbPolygonZM = _ogr.wkbPolygonZM
wkbMultiPointZM = _ogr.wkbMultiPointZM
wkbMultiLineStringZM = _ogr.wkbMultiLineStringZM
wkbMultiPolygonZM = _ogr.wkbMultiPolygonZM
wkbGeometryCollectionZM = _ogr.wkbGeometryCollectionZM
wkbCircularStringZM = _ogr.wkbCircularStringZM
wkbCompoundCurveZM = _ogr.wkbCompoundCurveZM
wkbCurvePolygonZM = _ogr.wkbCurvePolygonZM
wkbMultiCurveZM = _ogr.wkbMultiCurveZM
wkbMultiSurfaceZM = _ogr.wkbMultiSurfaceZM
wkbCurveZM = _ogr.wkbCurveZM
wkbSurfaceZM = _ogr.wkbSurfaceZM
wkbPolyhedralSurfaceZM = _ogr.wkbPolyhedralSurfaceZM
wkbTINZM = _ogr.wkbTINZM
wkbTriangleZM = _ogr.wkbTriangleZM
wkbPoint25D = _ogr.wkbPoint25D
wkbLineString25D = _ogr.wkbLineString25D
wkbPolygon25D = _ogr.wkbPolygon25D
wkbMultiPoint25D = _ogr.wkbMultiPoint25D
wkbMultiLineString25D = _ogr.wkbMultiLineString25D
wkbMultiPolygon25D = _ogr.wkbMultiPolygon25D
wkbGeometryCollection25D = _ogr.wkbGeometryCollection25D
OFTInteger = _ogr.OFTInteger
OFTIntegerList = _ogr.OFTIntegerList
OFTReal = _ogr.OFTReal
OFTRealList = _ogr.OFTRealList
OFTString = _ogr.OFTString
OFTStringList = _ogr.OFTStringList
OFTWideString = _ogr.OFTWideString
OFTWideStringList = _ogr.OFTWideStringList
OFTBinary = _ogr.OFTBinary
OFTDate = _ogr.OFTDate
OFTTime = _ogr.OFTTime
OFTDateTime = _ogr.OFTDateTime
OFTInteger64 = _ogr.OFTInteger64
OFTInteger64List = _ogr.OFTInteger64List
OFSTNone = _ogr.OFSTNone
OFSTBoolean = _ogr.OFSTBoolean
OFSTInt16 = _ogr.OFSTInt16
OFSTFloat32 = _ogr.OFSTFloat32
OJUndefined = _ogr.OJUndefined
OJLeft = _ogr.OJLeft
OJRight = _ogr.OJRight
wkbXDR = _ogr.wkbXDR
wkbNDR = _ogr.wkbNDR
NullFID = _ogr.NullFID
ALTER_NAME_FLAG = _ogr.ALTER_NAME_FLAG
ALTER_TYPE_FLAG = _ogr.ALTER_TYPE_FLAG
ALTER_WIDTH_PRECISION_FLAG = _ogr.ALTER_WIDTH_PRECISION_FLAG
ALTER_NULLABLE_FLAG = _ogr.ALTER_NULLABLE_FLAG
ALTER_DEFAULT_FLAG = _ogr.ALTER_DEFAULT_FLAG
ALTER_ALL_FLAG = _ogr.ALTER_ALL_FLAG
F_VAL_NULL = _ogr.F_VAL_NULL
F_VAL_GEOM_TYPE = _ogr.F_VAL_GEOM_TYPE
F_VAL_WIDTH = _ogr.F_VAL_WIDTH
F_VAL_ALLOW_NULL_WHEN_DEFAULT = _ogr.F_VAL_ALLOW_NULL_WHEN_DEFAULT
F_VAL_ALL = _ogr.F_VAL_ALL
OLCRandomRead = _ogr.OLCRandomRead
OLCSequentialWrite = _ogr.OLCSequentialWrite
OLCRandomWrite = _ogr.OLCRandomWrite
OLCFastSpatialFilter = _ogr.OLCFastSpatialFilter
OLCFastFeatureCount = _ogr.OLCFastFeatureCount
OLCFastGetExtent = _ogr.OLCFastGetExtent
OLCCreateField = _ogr.OLCCreateField
OLCDeleteField = _ogr.OLCDeleteField
OLCReorderFields = _ogr.OLCReorderFields
OLCAlterFieldDefn = _ogr.OLCAlterFieldDefn
OLCTransactions = _ogr.OLCTransactions
OLCDeleteFeature = _ogr.OLCDeleteFeature
OLCFastSetNextByIndex = _ogr.OLCFastSetNextByIndex
OLCStringsAsUTF8 = _ogr.OLCStringsAsUTF8
OLCIgnoreFields = _ogr.OLCIgnoreFields
OLCCreateGeomField = _ogr.OLCCreateGeomField
OLCCurveGeometries = _ogr.OLCCurveGeometries
OLCMeasuredGeometries = _ogr.OLCMeasuredGeometries
ODsCCreateLayer = _ogr.ODsCCreateLayer
ODsCDeleteLayer = _ogr.ODsCDeleteLayer
ODsCCreateGeomFieldAfterCreateLayer = _ogr.ODsCCreateGeomFieldAfterCreateLayer
ODsCCurveGeometries = _ogr.ODsCCurveGeometries
ODsCTransactions = _ogr.ODsCTransactions
ODsCEmulatedTransactions = _ogr.ODsCEmulatedTransactions
ODsCMeasuredGeometries = _ogr.ODsCMeasuredGeometries
ODsCRandomLayerRead = _ogr.ODsCRandomLayerRead
ODsCRandomLayerWrite = _ogr.ODsCRandomLayerWrite
ODrCCreateDataSource = _ogr.ODrCCreateDataSource
ODrCDeleteDataSource = _ogr.ODrCDeleteDataSource
OLMD_FID64 = _ogr.OLMD_FID64
OGRERR_NONE = _ogr.OGRERR_NONE
OGRERR_NOT_ENOUGH_DATA = _ogr.OGRERR_NOT_ENOUGH_DATA
OGRERR_NOT_ENOUGH_MEMORY = _ogr.OGRERR_NOT_ENOUGH_MEMORY
OGRERR_UNSUPPORTED_GEOMETRY_TYPE = _ogr.OGRERR_UNSUPPORTED_GEOMETRY_TYPE
OGRERR_UNSUPPORTED_OPERATION = _ogr.OGRERR_UNSUPPORTED_OPERATION
OGRERR_CORRUPT_DATA = _ogr.OGRERR_CORRUPT_DATA
OGRERR_FAILURE = _ogr.OGRERR_FAILURE
OGRERR_UNSUPPORTED_SRS = _ogr.OGRERR_UNSUPPORTED_SRS
OGRERR_INVALID_HANDLE = _ogr.OGRERR_INVALID_HANDLE
OGRERR_NON_EXISTING_FEATURE = _ogr.OGRERR_NON_EXISTING_FEATURE

def GetUseExceptions(*args):
  """GetUseExceptions() -> int"""
  return _ogr.GetUseExceptions(*args)

def UseExceptions(*args):
  """UseExceptions()"""
  return _ogr.UseExceptions(*args)

def DontUseExceptions(*args):
  """DontUseExceptions()"""
  return _ogr.DontUseExceptions(*args)
import osr
class MajorObject(object):
    """Proxy of C++ GDALMajorObjectShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    def __init__(self, *args, **kwargs): raise AttributeError("No constructor defined")
    __repr__ = _swig_repr
    def GetDescription(self, *args):
        """GetDescription(self) -> char"""
        return _ogr.MajorObject_GetDescription(self, *args)

    def SetDescription(self, *args):
        """SetDescription(self, char pszNewDesc)"""
        return _ogr.MajorObject_SetDescription(self, *args)

    def GetMetadataDomainList(self, *args):
        """GetMetadataDomainList(self) -> char"""
        return _ogr.MajorObject_GetMetadataDomainList(self, *args)

    def GetMetadata_Dict(self, *args):
        """GetMetadata_Dict(self, char pszDomain = "") -> char"""
        return _ogr.MajorObject_GetMetadata_Dict(self, *args)

    def GetMetadata_List(self, *args):
        """GetMetadata_List(self, char pszDomain = "") -> char"""
        return _ogr.MajorObject_GetMetadata_List(self, *args)

    def SetMetadata(self, *args):
        """
        SetMetadata(self, char papszMetadata, char pszDomain = "") -> CPLErr
        SetMetadata(self, char pszMetadataString, char pszDomain = "") -> CPLErr
        """
        return _ogr.MajorObject_SetMetadata(self, *args)

    def GetMetadataItem(self, *args):
        """GetMetadataItem(self, char pszName, char pszDomain = "") -> char"""
        return _ogr.MajorObject_GetMetadataItem(self, *args)

    def SetMetadataItem(self, *args):
        """SetMetadataItem(self, char pszName, char pszValue, char pszDomain = "") -> CPLErr"""
        return _ogr.MajorObject_SetMetadataItem(self, *args)

    def GetMetadata( self, domain = '' ):
      if domain[:4] == 'xml:':
        return self.GetMetadata_List( domain )
      return self.GetMetadata_Dict( domain )

MajorObject_swigregister = _ogr.MajorObject_swigregister
MajorObject_swigregister(MajorObject)

class StyleTable(object):
    """Proxy of C++ OGRStyleTableShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    def __init__(self, *args): 
        """__init__(self) -> StyleTable"""
        this = _ogr.new_StyleTable(*args)
        try: self.this.append(this)
        except: self.this = this
    __swig_destroy__ = _ogr.delete_StyleTable
    __del__ = lambda self : None;
    def AddStyle(self, *args):
        """AddStyle(self, char pszName, char pszStyleString) -> int"""
        return _ogr.StyleTable_AddStyle(self, *args)

    def LoadStyleTable(self, *args):
        """LoadStyleTable(self, char utf8_path) -> int"""
        return _ogr.StyleTable_LoadStyleTable(self, *args)

    def SaveStyleTable(self, *args):
        """SaveStyleTable(self, char utf8_path) -> int"""
        return _ogr.StyleTable_SaveStyleTable(self, *args)

    def Find(self, *args):
        """Find(self, char pszName) -> char"""
        return _ogr.StyleTable_Find(self, *args)

    def ResetStyleStringReading(self, *args):
        """ResetStyleStringReading(self)"""
        return _ogr.StyleTable_ResetStyleStringReading(self, *args)

    def GetNextStyle(self, *args):
        """GetNextStyle(self) -> char"""
        return _ogr.StyleTable_GetNextStyle(self, *args)

    def GetLastStyleName(self, *args):
        """GetLastStyleName(self) -> char"""
        return _ogr.StyleTable_GetLastStyleName(self, *args)

StyleTable_swigregister = _ogr.StyleTable_swigregister
StyleTable_swigregister(StyleTable)

class Driver(MajorObject):
    """Proxy of C++ OGRDriverShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    def __init__(self, *args, **kwargs): raise AttributeError("No constructor defined")
    __repr__ = _swig_repr
    name = _swig_property(_ogr.Driver_name_get)
    def CreateDataSource(self, *args, **kwargs):
        """CreateDataSource(self, char utf8_path, char options = None) -> DataSource"""
        return _ogr.Driver_CreateDataSource(self, *args, **kwargs)

    def CopyDataSource(self, *args, **kwargs):
        """CopyDataSource(self, DataSource copy_ds, char utf8_path, char options = None) -> DataSource"""
        return _ogr.Driver_CopyDataSource(self, *args, **kwargs)

    def Open(self, *args, **kwargs):
        """Open(self, char utf8_path, int update = 0) -> DataSource"""
        return _ogr.Driver_Open(self, *args, **kwargs)

    def DeleteDataSource(self, *args):
        """DeleteDataSource(self, char utf8_path) -> int"""
        return _ogr.Driver_DeleteDataSource(self, *args)

    def TestCapability(self, *args):
        """TestCapability(self, char cap) -> bool"""
        return _ogr.Driver_TestCapability(self, *args)

    def GetName(self, *args):
        """GetName(self) -> char"""
        return _ogr.Driver_GetName(self, *args)

    def Register(self, *args):
        """Register(self)"""
        return _ogr.Driver_Register(self, *args)

    def Deregister(self, *args):
        """Deregister(self)"""
        return _ogr.Driver_Deregister(self, *args)

Driver_swigregister = _ogr.Driver_swigregister
Driver_swigregister(Driver)

class DataSource(MajorObject):
    """Proxy of C++ OGRDataSourceShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    def __init__(self, *args, **kwargs): raise AttributeError("No constructor defined")
    __repr__ = _swig_repr
    name = _swig_property(_ogr.DataSource_name_get)
    __swig_destroy__ = _ogr.delete_DataSource
    __del__ = lambda self : None;
    def GetRefCount(self, *args):
        """
        GetRefCount(self) -> int

        int
        OGR_DS_GetRefCount(OGRDataSourceH hDataSource) 
        """
        return _ogr.DataSource_GetRefCount(self, *args)

    def GetSummaryRefCount(self, *args):
        """
        GetSummaryRefCount(self) -> int

        int
        OGR_DS_GetSummaryRefCount(OGRDataSourceH hDataSource) 
        """
        return _ogr.DataSource_GetSummaryRefCount(self, *args)

    def GetLayerCount(self, *args):
        """
        GetLayerCount(self) -> int

        int
        OGR_DS_GetLayerCount(OGRDataSourceH hDS)

        Get the number of layers in this data source.

        Deprecated Use GDALDatasetGetLayerCount() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source from which to get the number of
        layers.

        layer count. 
        """
        return _ogr.DataSource_GetLayerCount(self, *args)

    def GetDriver(self, *args):
        """
        GetDriver(self) -> Driver

        OGRSFDriverH
        OGR_DS_GetDriver(OGRDataSourceH hDS)

        Returns the driver that the dataset was opened with.

        NOTE: Starting with GDAL 2.0, it is NOT safe to cast the returned
        handle to OGRSFDriver*. If a C++ object is needed, the handle should
        be cast to GDALDriver*.

        Deprecated Use GDALGetDatasetDriver() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the datasource

        NULL if driver info is not available, or pointer to a driver owned by
        the OGRSFDriverManager. 
        """
        return _ogr.DataSource_GetDriver(self, *args)

    def GetName(self, *args):
        """
        GetName(self) -> char

        const char*
        OGR_DS_GetName(OGRDataSourceH hDS)

        Returns the name of the data source.

        This string should be sufficient to open the data source if passed to
        the same OGRSFDriver that this data source was opened with, but it
        need not be exactly the same string that was used to open the data
        source. Normally this is a filename.

        Deprecated Use GDALGetDescription() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source to get the name from.

        pointer to an internal name string which should not be modified or
        freed by the caller. 
        """
        return _ogr.DataSource_GetName(self, *args)

    def DeleteLayer(self, *args):
        """
        DeleteLayer(self, int index) -> OGRErr

        OGRErr
        OGR_DS_DeleteLayer(OGRDataSourceH hDS, int iLayer)

        Delete the indicated layer from the datasource.

        If this method is supported the ODsCDeleteLayer capability will test
        TRUE on the OGRDataSource.

        Deprecated Use GDALDatasetDeleteLayer() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the datasource

        iLayer:  the index of the layer to delete.

        OGRERR_NONE on success, or OGRERR_UNSUPPORTED_OPERATION if deleting
        layers is not supported for this datasource. 
        """
        return _ogr.DataSource_DeleteLayer(self, *args)

    def SyncToDisk(self, *args):
        """
        SyncToDisk(self) -> OGRErr

        OGRErr
        OGR_DS_SyncToDisk(OGRDataSourceH hDS)

        Flush pending changes to disk.

        See GDALDataset::FlushCache() 
        """
        return _ogr.DataSource_SyncToDisk(self, *args)

    def FlushCache(self, *args):
        """FlushCache(self)"""
        return _ogr.DataSource_FlushCache(self, *args)

    def CreateLayer(self, *args, **kwargs):
        """
        CreateLayer(self, char name, SpatialReference srs = None, OGRwkbGeometryType geom_type = wkbUnknown, 
            char options = None) -> Layer

        OGRLayerH
        OGR_DS_CreateLayer(OGRDataSourceH hDS, const char *pszName,
        OGRSpatialReferenceH hSpatialRef, OGRwkbGeometryType eType, char
        **papszOptions)

        This function attempts to create a new layer on the data source with
        the indicated name, coordinate system, geometry type.

        The papszOptions argument can be used to control driver specific
        creation options. These options are normally documented in the format
        specific documentation.

        Deprecated Use GDALDatasetCreateLayer() in GDAL 2.0

        Parameters:
        -----------

        hDS:  The dataset handle.

        pszName:  the name for the new layer. This should ideally not match
        any existing layer on the datasource.

        hSpatialRef:  handle to the coordinate system to use for the new
        layer, or NULL if no coordinate system is available. The driver might
        only increase the reference counter of the object to take ownership,
        and not make a full copy, so do not use OSRDestroySpatialReference(),
        but OSRRelease() instead when you are done with the object.

        eType:  the geometry type for the layer. Use wkbUnknown if there are
        no constraints on the types geometry to be written.

        papszOptions:  a StringList of name=value options. Options are driver
        specific, and driver information can be found at the following
        url:http://www.gdal.org/ogr_formats.html

        NULL is returned on failure, or a new OGRLayer handle on success.
        Example: 
        """
        return _ogr.DataSource_CreateLayer(self, *args, **kwargs)

    def CopyLayer(self, *args, **kwargs):
        """
        CopyLayer(self, Layer src_layer, char new_name, char options = None) -> Layer

        OGRLayerH
        OGR_DS_CopyLayer(OGRDataSourceH hDS, OGRLayerH hSrcLayer, const char
        *pszNewName, char **papszOptions)

        Duplicate an existing layer.

        This function creates a new layer, duplicate the field definitions of
        the source layer and then duplicate each features of the source layer.
        The papszOptions argument can be used to control driver specific
        creation options. These options are normally documented in the format
        specific documentation. The source layer may come from another
        dataset.

        Deprecated Use GDALDatasetCopyLayer() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source where to create the new layer

        hSrcLayer:  handle to the source layer.

        pszNewName:  the name of the layer to create.

        papszOptions:  a StringList of name=value options. Options are driver
        specific.

        an handle to the layer, or NULL if an error occurs. 
        """
        return _ogr.DataSource_CopyLayer(self, *args, **kwargs)

    def GetLayerByIndex(self, *args):
        """GetLayerByIndex(self, int index = 0) -> Layer"""
        return _ogr.DataSource_GetLayerByIndex(self, *args)

    def GetLayerByName(self, *args):
        """
        GetLayerByName(self, char layer_name) -> Layer

        OGRLayerH
        OGR_DS_GetLayerByName(OGRDataSourceH hDS, const char *pszName)

        Fetch a layer by name.

        The returned layer remains owned by the OGRDataSource and should not
        be deleted by the application.

        Deprecated Use GDALDatasetGetLayerByName() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source from which to get the layer.

        pszLayerName:  Layer the layer name of the layer to fetch.

        an handle to the layer, or NULL if the layer is not found or an error
        occurs. 
        """
        return _ogr.DataSource_GetLayerByName(self, *args)

    def TestCapability(self, *args):
        """
        TestCapability(self, char cap) -> bool

        int
        OGR_DS_TestCapability(OGRDataSourceH hDS, const char *pszCap)

        Test if capability is available.

        One of the following data source capability names can be passed into
        this function, and a TRUE or FALSE value will be returned indicating
        whether or not the capability is available for this object.

        ODsCCreateLayer: True if this datasource can create new layers.

        ODsCDeleteLayer: True if this datasource can delete existing layers.

        ODsCCreateGeomFieldAfterCreateLayer: True if the layers of this
        datasource support CreateGeomField() just after layer creation.

        ODsCCurveGeometries: True if this datasource supports writing curve
        geometries. (GDAL 2.0). In that case, OLCCurveGeometries must also be
        declared in layers of that dataset.

        The #define macro forms of the capability names should be used in
        preference to the strings themselves to avoid misspelling.

        Deprecated Use GDALDatasetTestCapability() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source against which to test the capability.

        pszCapability:  the capability to test.

        TRUE if capability available otherwise FALSE. 
        """
        return _ogr.DataSource_TestCapability(self, *args)

    def ExecuteSQL(self, *args, **kwargs):
        """
        ExecuteSQL(self, char statement, Geometry spatialFilter = None, char dialect = "") -> Layer

        OGRLayerH
        OGR_DS_ExecuteSQL(OGRDataSourceH hDS, const char *pszStatement,
        OGRGeometryH hSpatialFilter, const char *pszDialect)

        Execute an SQL statement against the data store.

        The result of an SQL query is either NULL for statements that are in
        error, or that have no results set, or an OGRLayer handle representing
        a results set from the query. Note that this OGRLayer is in addition
        to the layers in the data store and must be destroyed with
        OGR_DS_ReleaseResultSet() before the data source is closed
        (destroyed).

        For more information on the SQL dialect supported internally by OGR
        review theOGR SQL document. Some drivers (i.e. Oracle and PostGIS)
        pass the SQL directly through to the underlying RDBMS.

        Starting with OGR 1.10, theSQLITE dialect can also be used.

        Deprecated Use GDALDatasetExecuteSQL() in GDAL 2.0

        Parameters:
        -----------

        hDS:  handle to the data source on which the SQL query is executed.

        pszSQLCommand:  the SQL statement to execute.

        hSpatialFilter:  handle to a geometry which represents a spatial
        filter. Can be NULL.

        pszDialect:  allows control of the statement dialect. If set to NULL,
        the OGR SQL engine will be used, except for RDBMS drivers that will
        use their dedicated SQL engine, unless OGRSQL is explicitly passed as
        the dialect. Starting with OGR 1.10, the SQLITE dialect can also be
        used.

        an handle to a OGRLayer containing the results of the query.
        Deallocate with OGR_DS_ReleaseResultSet(). 
        """
        return _ogr.DataSource_ExecuteSQL(self, *args, **kwargs)

    def ReleaseResultSet(self, *args):
        """
        ReleaseResultSet(self, Layer layer)

        void
        OGR_DS_ReleaseResultSet(OGRDataSourceH hDS, OGRLayerH hLayer)

        Release results of OGR_DS_ExecuteSQL().

        This function should only be used to deallocate OGRLayers resulting
        from an OGR_DS_ExecuteSQL() call on the same OGRDataSource. Failure to
        deallocate a results set before destroying the OGRDataSource may cause
        errors.

        Deprecated Use GDALDatasetReleaseResultSet() in GDAL 2.0

        Parameters:
        -----------

        hDS:  an handle to the data source on which was executed an SQL query.

        hLayer:  handle to the result of a previous OGR_DS_ExecuteSQL() call.

        """
        return _ogr.DataSource_ReleaseResultSet(self, *args)

    def GetStyleTable(self, *args):
        """
        GetStyleTable(self) -> StyleTable

        OGRStyleTableH
        OGR_DS_GetStyleTable(OGRDataSourceH hDS)

        Get style table. 
        """
        return _ogr.DataSource_GetStyleTable(self, *args)

    def SetStyleTable(self, *args):
        """
        SetStyleTable(self, StyleTable table)

        void
        OGR_DS_SetStyleTable(OGRDataSourceH hDS, OGRStyleTableH hStyleTable)

        Set style table. 
        """
        return _ogr.DataSource_SetStyleTable(self, *args)

    def StartTransaction(self, *args, **kwargs):
        """StartTransaction(self, int force = True) -> OGRErr"""
        return _ogr.DataSource_StartTransaction(self, *args, **kwargs)

    def CommitTransaction(self, *args):
        """CommitTransaction(self) -> OGRErr"""
        return _ogr.DataSource_CommitTransaction(self, *args)

    def RollbackTransaction(self, *args):
        """RollbackTransaction(self) -> OGRErr"""
        return _ogr.DataSource_RollbackTransaction(self, *args)

    def Destroy(self):
      "Once called, self has effectively been destroyed.  Do not access. For backwards compatibility only"
      _ogr.delete_DataSource( self )
      self.thisown = 0

    def Release(self):
      "Once called, self has effectively been destroyed.  Do not access. For backwards compatibility only"
      _ogr.delete_DataSource( self )
      self.thisown = 0

    def Reference(self):
      "For backwards compatibility only."
      return self.Reference()

    def Dereference(self):
      "For backwards compatibility only."
      self.Dereference()

    def __len__(self):
        """Returns the number of layers on the datasource"""
        return self.GetLayerCount()

    def __getitem__(self, value):
        """Support dictionary, list, and slice -like access to the datasource.
        ds[0] would return the first layer on the datasource.
        ds['aname'] would return the layer named "aname".
        ds[0:4] would return a list of the first four layers."""
        if isinstance(value, slice):
            output = []
            for i in xrange(value.start,value.stop,value.step):
                try:
                    output.append(self.GetLayer(i))
                except OGRError: #we're done because we're off the end
                    return output
            return output
        if isinstance(value, int):
            if value > len(self)-1:
                raise IndexError
            return self.GetLayer(value)
        elif isinstance(value, str):
            return self.GetLayer(value)
        else:
            raise TypeError('Input %s is not of String or Int type' % type(value))

    def GetLayer(self,iLayer=0):
        """Return the layer given an index or a name"""
        if isinstance(iLayer, str):
            return self.GetLayerByName(str(iLayer))
        elif isinstance(iLayer, int):
            return self.GetLayerByIndex(iLayer)
        else:
            raise TypeError("Input %s is not of String or Int type" % type(iLayer))

    def DeleteLayer(self, value):
        """Deletes the layer given an index or layer name"""
        if isinstance(value, str):
            for i in range(self.GetLayerCount()):
                name = self.GetLayer(i).GetName()
                if name == value:
                    return _ogr.DataSource_DeleteLayer(self, i)
            raise ValueError("Layer %s not found to delete" % value)
        elif isinstance(value, int):
            return _ogr.DataSource_DeleteLayer(self, value)
        else:
            raise TypeError("Input %s is not of String or Int type" % type(value))

DataSource_swigregister = _ogr.DataSource_swigregister
DataSource_swigregister(DataSource)

class Layer(MajorObject):
    """Proxy of C++ OGRLayerShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    def __init__(self, *args, **kwargs): raise AttributeError("No constructor defined")
    __repr__ = _swig_repr
    def GetRefCount(self, *args):
        """
        GetRefCount(self) -> int

        int OGR_L_GetRefCount(OGRLayerH
        hLayer) 
        """
        return _ogr.Layer_GetRefCount(self, *args)

    def SetSpatialFilter(self, *args):
        """
        SetSpatialFilter(self, Geometry filter)
        SetSpatialFilter(self, int iGeomField, Geometry filter)

        void
        OGR_L_SetSpatialFilter(OGRLayerH hLayer, OGRGeometryH hGeom)

        Set a new spatial filter.

        This function set the geometry to be used as a spatial filter when
        fetching features via the OGR_L_GetNextFeature() function. Only
        features that geometrically intersect the filter geometry will be
        returned.

        Currently this test is may be inaccurately implemented, but it is
        guaranteed that all features whose envelope (as returned by
        OGR_G_GetEnvelope()) overlaps the envelope of the spatial filter will
        be returned. This can result in more shapes being returned that should
        strictly be the case.

        Starting with GDAL 2.3, features with null or empty geometries will
        never be considered as matching a spatial filter.

        This function makes an internal copy of the passed geometry. The
        passed geometry remains the responsibility of the caller, and may be
        safely destroyed.

        For the time being the passed filter geometry should be in the same
        SRS as the layer (as returned by OGR_L_GetSpatialRef()). In the future
        this may be generalized.

        This function is the same as the C++ method
        OGRLayer::SetSpatialFilter.

        Parameters:
        -----------

        hLayer:  handle to the layer on which to set the spatial filter.

        hGeom:  handle to the geometry to use as a filtering region. NULL may
        be passed indicating that the current spatial filter should be
        cleared, but no new one instituted. 
        """
        return _ogr.Layer_SetSpatialFilter(self, *args)

    def SetSpatialFilterRect(self, *args):
        """
        SetSpatialFilterRect(self, double minx, double miny, double maxx, double maxy)
        SetSpatialFilterRect(self, int iGeomField, double minx, double miny, double maxx, 
            double maxy)

        void
        OGR_L_SetSpatialFilterRect(OGRLayerH hLayer, double dfMinX, double
        dfMinY, double dfMaxX, double dfMaxY)

        Set a new rectangular spatial filter.

        This method set rectangle to be used as a spatial filter when fetching
        features via the OGR_L_GetNextFeature() method. Only features that
        geometrically intersect the given rectangle will be returned.

        The x/y values should be in the same coordinate system as the layer as
        a whole (as returned by OGRLayer::GetSpatialRef()). Internally this
        method is normally implemented as creating a 5 vertex closed
        rectangular polygon and passing it to OGRLayer::SetSpatialFilter(). It
        exists as a convenience.

        The only way to clear a spatial filter set with this method is to call
        OGRLayer::SetSpatialFilter(NULL).

        This method is the same as the C++ method
        OGRLayer::SetSpatialFilterRect().

        Parameters:
        -----------

        hLayer:  handle to the layer on which to set the spatial filter.

        dfMinX:  the minimum X coordinate for the rectangular region.

        dfMinY:  the minimum Y coordinate for the rectangular region.

        dfMaxX:  the maximum X coordinate for the rectangular region.

        dfMaxY:  the maximum Y coordinate for the rectangular region. 
        """
        return _ogr.Layer_SetSpatialFilterRect(self, *args)

    def GetSpatialFilter(self, *args):
        """
        GetSpatialFilter(self) -> Geometry

        OGRGeometryH
        OGR_L_GetSpatialFilter(OGRLayerH hLayer)

        This function returns the current spatial filter for this layer.

        The returned pointer is to an internally owned object, and should not
        be altered or deleted by the caller.

        This function is the same as the C++ method
        OGRLayer::GetSpatialFilter().

        Parameters:
        -----------

        hLayer:  handle to the layer to get the spatial filter from.

        an handle to the spatial filter geometry. 
        """
        return _ogr.Layer_GetSpatialFilter(self, *args)

    def SetAttributeFilter(self, *args):
        """
        SetAttributeFilter(self, char filter_string) -> OGRErr

        OGRErr
        OGR_L_SetAttributeFilter(OGRLayerH hLayer, const char *pszQuery)

        Set a new attribute query.

        This function sets the attribute query string to be used when fetching
        features via the OGR_L_GetNextFeature() function. Only features for
        which the query evaluates as true will be returned.

        The query string should be in the format of an SQL WHERE clause. For
        instance "population > 1000000 and population < 5000000" where
        population is an attribute in the layer. The query format is a
        restricted form of SQL WHERE clause as defined
        "eq_format=restricted_where" about half way through this document:

        http://ogdi.sourceforge.net/prop/6.2.CapabilitiesMetadata.html

        Note that installing a query string will generally result in resetting
        the current reading position (ala OGR_L_ResetReading()).

        This function is the same as the C++ method
        OGRLayer::SetAttributeFilter().

        Parameters:
        -----------

        hLayer:  handle to the layer on which attribute query will be
        executed.

        pszQuery:  query in restricted SQL WHERE format, or NULL to clear the
        current query.

        OGRERR_NONE if successfully installed, or an error code if the query
        expression is in error, or some other failure occurs. 
        """
        return _ogr.Layer_SetAttributeFilter(self, *args)

    def ResetReading(self, *args):
        """
        ResetReading(self)

        void
        OGR_L_ResetReading(OGRLayerH hLayer)

        Reset feature reading to start on the first feature.

        This affects GetNextFeature().

        This function is the same as the C++ method OGRLayer::ResetReading().

        Parameters:
        -----------

        hLayer:  handle to the layer on which features are read. 
        """
        return _ogr.Layer_ResetReading(self, *args)

    def GetName(self, *args):
        """
        GetName(self) -> char

        const char* OGR_L_GetName(OGRLayerH
        hLayer)

        Return the layer name.

        This returns the same content as
        OGR_FD_GetName(OGR_L_GetLayerDefn(hLayer)), but for a few drivers,
        calling OGR_L_GetName() directly can avoid lengthy layer definition
        initialization.

        This function is the same as the C++ method OGRLayer::GetName().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        the layer name (must not been freed)

        OGR 1.8.0 
        """
        return _ogr.Layer_GetName(self, *args)

    def GetGeomType(self, *args):
        """
        GetGeomType(self) -> OGRwkbGeometryType

        OGRwkbGeometryType
        OGR_L_GetGeomType(OGRLayerH hLayer)

        Return the layer geometry type.

        This returns the same result as
        OGR_FD_GetGeomType(OGR_L_GetLayerDefn(hLayer)), but for a few drivers,
        calling OGR_L_GetGeomType() directly can avoid lengthy layer
        definition initialization.

        For layers with multiple geometry fields, this method only returns the
        geometry type of the first geometry column. For other columns, use
        OGR_GFld_GetType(OGR_FD_GetGeomFieldDefn(OGR_L_GetLayerDefn(hLayer),
        i)). For layers without any geometry field, this method returns
        wkbNone.

        This function is the same as the C++ method OGRLayer::GetGeomType().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        the geometry type

        OGR 1.8.0 
        """
        return _ogr.Layer_GetGeomType(self, *args)

    def GetGeometryColumn(self, *args):
        """
        GetGeometryColumn(self) -> char

        const char*
        OGR_L_GetGeometryColumn(OGRLayerH hLayer)

        This method returns the name of the underlying database column being
        used as the geometry column, or "" if not supported.

        For layers with multiple geometry fields, this method only returns the
        geometry type of the first geometry column. For other columns, use OGR
        _GFld_GetNameRef(OGR_FD_GetGeomFieldDefn(OGR_L_GetLayerDefn(hLayer),
        i)).

        This method is the same as the C++ method
        OGRLayer::GetGeometryColumn()

        Parameters:
        -----------

        hLayer:  handle to the layer

        geometry column name. 
        """
        return _ogr.Layer_GetGeometryColumn(self, *args)

    def GetFIDColumn(self, *args):
        """
        GetFIDColumn(self) -> char

        const char*
        OGR_L_GetFIDColumn(OGRLayerH hLayer)

        This method returns the name of the underlying database column being
        used as the FID column, or "" if not supported.

        This method is the same as the C++ method OGRLayer::GetFIDColumn()

        Parameters:
        -----------

        hLayer:  handle to the layer

        fid column name. 
        """
        return _ogr.Layer_GetFIDColumn(self, *args)

    def GetFeature(self, *args):
        """
        GetFeature(self, GIntBig fid) -> Feature

        OGRFeatureH
        OGR_L_GetFeature(OGRLayerH hLayer, GIntBig nFeatureId)

        Fetch a feature by its identifier.

        This function will attempt to read the identified feature. The nFID
        value cannot be OGRNullFID. Success or failure of this operation is
        unaffected by the spatial or attribute filters (and specialized
        implementations in drivers should make sure that they do not take into
        account spatial or attribute filters).

        If this function returns a non-NULL feature, it is guaranteed that its
        feature id ( OGR_F_GetFID()) will be the same as nFID.

        Use OGR_L_TestCapability(OLCRandomRead) to establish if this layer
        supports efficient random access reading via OGR_L_GetFeature();
        however, the call should always work if the feature exists as a
        fallback implementation just scans all the features in the layer
        looking for the desired feature.

        Sequential reads (with OGR_L_GetNextFeature()) are generally
        considered interrupted by a OGR_L_GetFeature() call.

        The returned feature should be free with OGR_F_Destroy().

        This function is the same as the C++ method OGRLayer::GetFeature( ).

        Parameters:
        -----------

        hLayer:  handle to the layer that owned the feature.

        nFeatureId:  the feature id of the feature to read.

        an handle to a feature now owned by the caller, or NULL on failure. 
        """
        return _ogr.Layer_GetFeature(self, *args)

    def GetNextFeature(self, *args):
        """
        GetNextFeature(self) -> Feature

        OGRFeatureH
        OGR_L_GetNextFeature(OGRLayerH hLayer)

        Fetch the next available feature from this layer.

        The returned feature becomes the responsibility of the caller to
        delete with OGR_F_Destroy(). It is critical that all features
        associated with an OGRLayer (more specifically an OGRFeatureDefn) be
        deleted before that layer/datasource is deleted.

        Only features matching the current spatial filter (set with
        SetSpatialFilter()) will be returned.

        This function implements sequential access to the features of a layer.
        The OGR_L_ResetReading() function can be used to start at the
        beginning again.

        Features returned by OGR_GetNextFeature() may or may not be affected
        by concurrent modifications depending on drivers. A guaranteed way of
        seeing modifications in effect is to call OGR_L_ResetReading() on
        layers where OGR_GetNextFeature() has been called, before reading
        again. Structural changes in layers (field addition, deletion, ...)
        when a read is in progress may or may not be possible depending on
        drivers. If a transaction is committed/aborted, the current sequential
        reading may or may not be valid after that operation and a call to
        OGR_L_ResetReading() might be needed.

        This function is the same as the C++ method
        OGRLayer::GetNextFeature().

        Parameters:
        -----------

        hLayer:  handle to the layer from which feature are read.

        an handle to a feature, or NULL if no more features are available. 
        """
        return _ogr.Layer_GetNextFeature(self, *args)

    def SetNextByIndex(self, *args):
        """
        SetNextByIndex(self, GIntBig new_index) -> OGRErr

        OGRErr
        OGR_L_SetNextByIndex(OGRLayerH hLayer, GIntBig nIndex)

        Move read cursor to the nIndex'th feature in the current resultset.

        This method allows positioning of a layer such that the
        GetNextFeature() call will read the requested feature, where nIndex is
        an absolute index into the current result set. So, setting it to 3
        would mean the next feature read with GetNextFeature() would have been
        the 4th feature to have been read if sequential reading took place
        from the beginning of the layer, including accounting for spatial and
        attribute filters.

        Only in rare circumstances is SetNextByIndex() efficiently
        implemented. In all other cases the default implementation which calls
        ResetReading() and then calls GetNextFeature() nIndex times is used.
        To determine if fast seeking is available on the current layer use the
        TestCapability() method with a value of OLCFastSetNextByIndex.

        This method is the same as the C++ method OGRLayer::SetNextByIndex()

        Parameters:
        -----------

        hLayer:  handle to the layer

        nIndex:  the index indicating how many steps into the result set to
        seek.

        OGRERR_NONE on success or an error code. 
        """
        return _ogr.Layer_SetNextByIndex(self, *args)

    def SetFeature(self, *args):
        """
        SetFeature(self, Feature feature) -> OGRErr

        OGRErr OGR_L_SetFeature(OGRLayerH
        hLayer, OGRFeatureH hFeat)

        Rewrite an existing feature.

        This function will write a feature to the layer, based on the feature
        id within the OGRFeature.

        Use OGR_L_TestCapability(OLCRandomWrite) to establish if this layer
        supports random access writing via OGR_L_SetFeature().

        This function is the same as the C++ method OGRLayer::SetFeature().

        Parameters:
        -----------

        hLayer:  handle to the layer to write the feature.

        hFeat:  the feature to write.

        OGRERR_NONE if the operation works, otherwise an appropriate error
        code (e.g OGRERR_NON_EXISTING_FEATURE if the feature does not exist).

        """
        return _ogr.Layer_SetFeature(self, *args)

    def CreateFeature(self, *args):
        """
        CreateFeature(self, Feature feature) -> OGRErr

        OGRErr
        OGR_L_CreateFeature(OGRLayerH hLayer, OGRFeatureH hFeat)

        Create and write a new feature within a layer.

        The passed feature is written to the layer as a new feature, rather
        than overwriting an existing one. If the feature has a feature id
        other than OGRNullFID, then the native implementation may use that as
        the feature id of the new feature, but not necessarily. Upon
        successful return the passed feature will have been updated with the
        new feature id.

        This function is the same as the C++ method OGRLayer::CreateFeature().

        Parameters:
        -----------

        hLayer:  handle to the layer to write the feature to.

        hFeat:  the handle of the feature to write to disk.

        OGRERR_NONE on success. 
        """
        return _ogr.Layer_CreateFeature(self, *args)

    def DeleteFeature(self, *args):
        """
        DeleteFeature(self, GIntBig fid) -> OGRErr

        OGRErr
        OGR_L_DeleteFeature(OGRLayerH hLayer, GIntBig nFID)

        Delete feature from layer.

        The feature with the indicated feature id is deleted from the layer if
        supported by the driver. Most drivers do not support feature deletion,
        and will return OGRERR_UNSUPPORTED_OPERATION. The
        OGR_L_TestCapability() function may be called with OLCDeleteFeature to
        check if the driver supports feature deletion.

        This method is the same as the C++ method OGRLayer::DeleteFeature().

        Parameters:
        -----------

        hLayer:  handle to the layer

        nFID:  the feature id to be deleted from the layer

        OGRERR_NONE if the operation works, otherwise an appropriate error
        code (e.g OGRERR_NON_EXISTING_FEATURE if the feature does not exist).

        """
        return _ogr.Layer_DeleteFeature(self, *args)

    def SyncToDisk(self, *args):
        """
        SyncToDisk(self) -> OGRErr

        OGRErr OGR_L_SyncToDisk(OGRLayerH
        hLayer)

        Flush pending changes to disk.

        This call is intended to force the layer to flush any pending writes
        to disk, and leave the disk file in a consistent state. It would not
        normally have any effect on read-only datasources.

        Some layers do not implement this method, and will still return
        OGRERR_NONE. The default implementation just returns OGRERR_NONE. An
        error is only returned if an error occurs while attempting to flush to
        disk.

        In any event, you should always close any opened datasource with
        OGR_DS_Destroy() that will ensure all data is correctly flushed.

        This method is the same as the C++ method OGRLayer::SyncToDisk()

        Parameters:
        -----------

        hLayer:  handle to the layer

        OGRERR_NONE if no error occurs (even if nothing is done) or an error
        code. 
        """
        return _ogr.Layer_SyncToDisk(self, *args)

    def GetLayerDefn(self, *args):
        """
        GetLayerDefn(self) -> FeatureDefn

        OGRFeatureDefnH
        OGR_L_GetLayerDefn(OGRLayerH hLayer)

        Fetch the schema information for this layer.

        The returned handle to the OGRFeatureDefn is owned by the OGRLayer,
        and should not be modified or freed by the application. It
        encapsulates the attribute schema of the features of the layer.

        This function is the same as the C++ method OGRLayer::GetLayerDefn().

        Parameters:
        -----------

        hLayer:  handle to the layer to get the schema information.

        an handle to the feature definition. 
        """
        return _ogr.Layer_GetLayerDefn(self, *args)

    def GetFeatureCount(self, *args, **kwargs):
        """
        GetFeatureCount(self, int force = 1) -> GIntBig

        GIntBig
        OGR_L_GetFeatureCount(OGRLayerH hLayer, int bForce)

        Fetch the feature count in this layer.

        Returns the number of features in the layer. For dynamic databases the
        count may not be exact. If bForce is FALSE, and it would be expensive
        to establish the feature count a value of -1 may be returned
        indicating that the count isn't know. If bForce is TRUE some
        implementations will actually scan the entire layer once to count
        objects.

        The returned count takes the spatial filter into account.

        Note that some implementations of this method may alter the read
        cursor of the layer.

        This function is the same as the CPP OGRLayer::GetFeatureCount().

        Note: since GDAL 2.0, this method returns a GIntBig (previously a int)

        Parameters:
        -----------

        hLayer:  handle to the layer that owned the features.

        bForce:  Flag indicating whether the count should be computed even if
        it is expensive.

        feature count, -1 if count not known. 
        """
        return _ogr.Layer_GetFeatureCount(self, *args, **kwargs)

    def GetExtent(self, *args, **kwargs):
        """
        GetExtent(self, int force = 1, int can_return_null = 0, int geom_field = 0)

        OGRErr OGR_L_GetExtent(OGRLayerH
        hLayer, OGREnvelope *psExtent, int bForce)

        Fetch the extent of this layer.

        Returns the extent (MBR) of the data in the layer. If bForce is FALSE,
        and it would be expensive to establish the extent then OGRERR_FAILURE
        will be returned indicating that the extent isn't know. If bForce is
        TRUE then some implementations will actually scan the entire layer
        once to compute the MBR of all the features in the layer.

        Depending on the drivers, the returned extent may or may not take the
        spatial filter into account. So it is safer to call OGR_L_GetExtent()
        without setting a spatial filter.

        Layers without any geometry may return OGRERR_FAILURE just indicating
        that no meaningful extents could be collected.

        Note that some implementations of this method may alter the read
        cursor of the layer.

        This function is the same as the C++ method OGRLayer::GetExtent().

        Parameters:
        -----------

        hLayer:  handle to the layer from which to get extent.

        psExtent:  the structure in which the extent value will be returned.

        bForce:  Flag indicating whether the extent should be computed even if
        it is expensive.

        OGRERR_NONE on success, OGRERR_FAILURE if extent not known. 
        """
        return _ogr.Layer_GetExtent(self, *args, **kwargs)

    def TestCapability(self, *args):
        """
        TestCapability(self, char cap) -> bool

        int
        OGR_L_TestCapability(OGRLayerH hLayer, const char *pszCap)

        Test if this layer supported the named capability.

        The capability codes that can be tested are represented as strings,
        but #defined constants exists to ensure correct spelling. Specific
        layer types may implement class specific capabilities, but this can't
        generally be discovered by the caller.

        OLCRandomRead / "RandomRead": TRUE if the GetFeature() method is
        implemented in an optimized way for this layer, as opposed to the
        default implementation using ResetReading() and GetNextFeature() to
        find the requested feature id.

        OLCSequentialWrite / "SequentialWrite": TRUE if the CreateFeature()
        method works for this layer. Note this means that this particular
        layer is writable. The same OGRLayer class may returned FALSE for
        other layer instances that are effectively read-only.

        OLCRandomWrite / "RandomWrite": TRUE if the SetFeature() method is
        operational on this layer. Note this means that this particular layer
        is writable. The same OGRLayer class may returned FALSE for other
        layer instances that are effectively read-only.

        OLCFastSpatialFilter / "FastSpatialFilter": TRUE if this layer
        implements spatial filtering efficiently. Layers that effectively read
        all features, and test them with the OGRFeature intersection methods
        should return FALSE. This can be used as a clue by the application
        whether it should build and maintain its own spatial index for
        features in this layer.

        OLCFastFeatureCount / "FastFeatureCount": TRUE if this layer can
        return a feature count (via OGR_L_GetFeatureCount()) efficiently, i.e.
        without counting the features. In some cases this will return TRUE
        until a spatial filter is installed after which it will return FALSE.

        OLCFastGetExtent / "FastGetExtent": TRUE if this layer can return
        its data extent (via OGR_L_GetExtent()) efficiently, i.e. without
        scanning all the features. In some cases this will return TRUE until a
        spatial filter is installed after which it will return FALSE.

        OLCFastSetNextByIndex / "FastSetNextByIndex": TRUE if this layer can
        perform the SetNextByIndex() call efficiently, otherwise FALSE.

        OLCCreateField / "CreateField": TRUE if this layer can create new
        fields on the current layer using CreateField(), otherwise FALSE.

        OLCCreateGeomField / "CreateGeomField": (GDAL >= 1.11) TRUE if this
        layer can create new geometry fields on the current layer using
        CreateGeomField(), otherwise FALSE.

        OLCDeleteField / "DeleteField": TRUE if this layer can delete
        existing fields on the current layer using DeleteField(), otherwise
        FALSE.

        OLCReorderFields / "ReorderFields": TRUE if this layer can reorder
        existing fields on the current layer using ReorderField() or
        ReorderFields(), otherwise FALSE.

        OLCAlterFieldDefn / "AlterFieldDefn": TRUE if this layer can alter
        the definition of an existing field on the current layer using
        AlterFieldDefn(), otherwise FALSE.

        OLCDeleteFeature / "DeleteFeature": TRUE if the DeleteFeature()
        method is supported on this layer, otherwise FALSE.

        OLCStringsAsUTF8 / "StringsAsUTF8": TRUE if values of OFTString
        fields are assured to be in UTF-8 format. If FALSE the encoding of
        fields is uncertain, though it might still be UTF-8.

        OLCTransactions / "Transactions": TRUE if the StartTransaction(),
        CommitTransaction() and RollbackTransaction() methods work in a
        meaningful way, otherwise FALSE.

        OLCCurveGeometries / "CurveGeometries": TRUE if this layer supports
        writing curve geometries or may return such geometries. (GDAL 2.0).

        This function is the same as the C++ method
        OGRLayer::TestCapability().

        Parameters:
        -----------

        hLayer:  handle to the layer to get the capability from.

        pszCap:  the name of the capability to test.

        TRUE if the layer has the requested capability, or FALSE otherwise.
        OGRLayers will return FALSE for any unrecognized capabilities. 
        """
        return _ogr.Layer_TestCapability(self, *args)

    def CreateField(self, *args, **kwargs):
        """
        CreateField(self, FieldDefn field_def, int approx_ok = 1) -> OGRErr

        OGRErr
        OGR_L_CreateField(OGRLayerH hLayer, OGRFieldDefnH hField, int
        bApproxOK)

        Create a new field on a layer.

        You must use this to create new fields on a real layer. Internally the
        OGRFeatureDefn for the layer will be updated to reflect the new field.
        Applications should never modify the OGRFeatureDefn used by a layer
        directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCCreateField capability. Some drivers may
        only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly.

        Drivers may or may not support not-null constraints. If they support
        creating fields with not-null constraints, this is generally before
        creating any feature to the layer.

        This function is the same as the C++ method OGRLayer::CreateField().

        Parameters:
        -----------

        hLayer:  handle to the layer to write the field definition.

        hField:  handle of the field definition to write to disk.

        bApproxOK:  If TRUE, the field may be created in a slightly different
        form depending on the limitations of the format driver.

        OGRERR_NONE on success. 
        """
        return _ogr.Layer_CreateField(self, *args, **kwargs)

    def DeleteField(self, *args):
        """
        DeleteField(self, int iField) -> OGRErr

        OGRErr
        OGR_L_DeleteField(OGRLayerH hLayer, int iField)

        Delete an existing field on a layer.

        You must use this to delete existing fields on a real layer.
        Internally the OGRFeatureDefn for the layer will be updated to reflect
        the deleted field. Applications should never modify the OGRFeatureDefn
        used by a layer directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCDeleteField capability. Some drivers may
        only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly.

        This function is the same as the C++ method OGRLayer::DeleteField().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        iField:  index of the field to delete.

        OGRERR_NONE on success.

        OGR 1.9.0 
        """
        return _ogr.Layer_DeleteField(self, *args)

    def ReorderField(self, *args):
        """
        ReorderField(self, int iOldFieldPos, int iNewFieldPos) -> OGRErr

        OGRErr
        OGR_L_ReorderField(OGRLayerH hLayer, int iOldFieldPos, int
        iNewFieldPos)

        Reorder an existing field on a layer.

        This function is a convenience wrapper of OGR_L_ReorderFields()
        dedicated to move a single field.

        You must use this to reorder existing fields on a real layer.
        Internally the OGRFeatureDefn for the layer will be updated to reflect
        the reordering of the fields. Applications should never modify the
        OGRFeatureDefn used by a layer directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        The field definition that was at initial position iOldFieldPos will be
        moved at position iNewFieldPos, and elements between will be shuffled
        accordingly.

        For example, let suppose the fields were "0","1","2","3","4"
        initially. ReorderField(1, 3) will reorder them as
        "0","2","3","1","4".

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCReorderFields capability. Some drivers
        may only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly.

        This function is the same as the C++ method OGRLayer::ReorderField().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        iOldFieldPos:  previous position of the field to move. Must be in the
        range [0,GetFieldCount()-1].

        iNewFieldPos:  new position of the field to move. Must be in the range
        [0,GetFieldCount()-1].

        OGRERR_NONE on success.

        OGR 1.9.0 
        """
        return _ogr.Layer_ReorderField(self, *args)

    def ReorderFields(self, *args):
        """
        ReorderFields(self, int nList) -> OGRErr

        OGRErr
        OGR_L_ReorderFields(OGRLayerH hLayer, int *panMap)

        Reorder all the fields of a layer.

        You must use this to reorder existing fields on a real layer.
        Internally the OGRFeatureDefn for the layer will be updated to reflect
        the reordering of the fields. Applications should never modify the
        OGRFeatureDefn used by a layer directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        panMap is such that,for each field definition at position i after
        reordering, its position before reordering was panMap[i].

        For example, let suppose the fields were "0","1","2","3","4"
        initially. ReorderFields([0,2,3,1,4]) will reorder them as
        "0","2","3","1","4".

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCReorderFields capability. Some drivers
        may only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly.

        This function is the same as the C++ method OGRLayer::ReorderFields().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        panMap:  an array of GetLayerDefn()-> OGRFeatureDefn::GetFieldCount()
        elements which is a permutation of [0, GetLayerDefn()->
        OGRFeatureDefn::GetFieldCount()-1].

        OGRERR_NONE on success.

        OGR 1.9.0 
        """
        return _ogr.Layer_ReorderFields(self, *args)

    def AlterFieldDefn(self, *args):
        """
        AlterFieldDefn(self, int iField, FieldDefn field_def, int nFlags) -> OGRErr

        OGRErr
        OGR_L_AlterFieldDefn(OGRLayerH hLayer, int iField, OGRFieldDefnH
        hNewFieldDefn, int nFlags)

        Alter the definition of an existing field on a layer.

        You must use this to alter the definition of an existing field of a
        real layer. Internally the OGRFeatureDefn for the layer will be
        updated to reflect the altered field. Applications should never modify
        the OGRFeatureDefn used by a layer directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCAlterFieldDefn capability. Some drivers
        may only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly. Some drivers might also
        not support all update flags.

        This function is the same as the C++ method
        OGRLayer::AlterFieldDefn().

        Parameters:
        -----------

        hLayer:  handle to the layer.

        iField:  index of the field whose definition must be altered.

        hNewFieldDefn:  new field definition

        nFlags:  combination of ALTER_NAME_FLAG, ALTER_TYPE_FLAG,
        ALTER_WIDTH_PRECISION_FLAG, ALTER_NULLABLE_FLAG and ALTER_DEFAULT_FLAG
        to indicate which of the name and/or type and/or width and precision
        fields and/or nullability from the new field definition must be taken
        into account.

        OGRERR_NONE on success.

        OGR 1.9.0 
        """
        return _ogr.Layer_AlterFieldDefn(self, *args)

    def CreateGeomField(self, *args, **kwargs):
        """
        CreateGeomField(self, GeomFieldDefn field_def, int approx_ok = 1) -> OGRErr

        OGRErr
        OGR_L_CreateGeomField(OGRLayerH hLayer, OGRGeomFieldDefnH hField, int
        bApproxOK)

        Create a new geometry field on a layer.

        You must use this to create new geometry fields on a real layer.
        Internally the OGRFeatureDefn for the layer will be updated to reflect
        the new field. Applications should never modify the OGRFeatureDefn
        used by a layer directly.

        This function should not be called while there are feature objects in
        existence that were obtained or created with the previous layer
        definition.

        Not all drivers support this function. You can query a layer to check
        if it supports it with the OLCCreateField capability. Some drivers may
        only support this method while there are still no features in the
        layer. When it is supported, the existing features of the backing
        file/database should be updated accordingly.

        Drivers may or may not support not-null constraints. If they support
        creating fields with not-null constraints, this is generally before
        creating any feature to the layer.

        This function is the same as the C++ method OGRLayer::CreateField().

        Parameters:
        -----------

        hLayer:  handle to the layer to write the field definition.

        hField:  handle of the geometry field definition to write to disk.

        bApproxOK:  If TRUE, the field may be created in a slightly different
        form depending on the limitations of the format driver.

        OGRERR_NONE on success.

        OGR 1.11 
        """
        return _ogr.Layer_CreateGeomField(self, *args, **kwargs)

    def StartTransaction(self, *args):
        """
        StartTransaction(self) -> OGRErr

        OGRErr
        OGR_L_StartTransaction(OGRLayerH hLayer)

        For datasources which support transactions, StartTransaction creates a
        transaction.

        If starting the transaction fails, will return OGRERR_FAILURE.
        Datasources which do not support transactions will always return
        OGRERR_NONE.

        Note: as of GDAL 2.0, use of this API is discouraged when the dataset
        offers dataset level transaction with GDALDataset::StartTransaction().
        The reason is that most drivers can only offer transactions at dataset
        level, and not layer level. Very few drivers really support
        transactions at layer scope.

        This function is the same as the C++ method
        OGRLayer::StartTransaction().

        Parameters:
        -----------

        hLayer:  handle to the layer

        OGRERR_NONE on success. 
        """
        return _ogr.Layer_StartTransaction(self, *args)

    def CommitTransaction(self, *args):
        """
        CommitTransaction(self) -> OGRErr

        OGRErr
        OGR_L_CommitTransaction(OGRLayerH hLayer)

        For datasources which support transactions, CommitTransaction commits
        a transaction.

        If no transaction is active, or the commit fails, will return
        OGRERR_FAILURE. Datasources which do not support transactions will
        always return OGRERR_NONE.

        This function is the same as the C++ method
        OGRLayer::CommitTransaction().

        Parameters:
        -----------

        hLayer:  handle to the layer

        OGRERR_NONE on success. 
        """
        return _ogr.Layer_CommitTransaction(self, *args)

    def RollbackTransaction(self, *args):
        """
        RollbackTransaction(self) -> OGRErr

        OGRErr
        OGR_L_RollbackTransaction(OGRLayerH hLayer)

        For datasources which support transactions, RollbackTransaction will
        roll back a datasource to its state before the start of the current
        transaction.

        If no transaction is active, or the rollback fails, will return
        OGRERR_FAILURE. Datasources which do not support transactions will
        always return OGRERR_NONE.

        This function is the same as the C++ method
        OGRLayer::RollbackTransaction().

        Parameters:
        -----------

        hLayer:  handle to the layer

        OGRERR_NONE on success. 
        """
        return _ogr.Layer_RollbackTransaction(self, *args)

    def FindFieldIndex(self, *args):
        """
        FindFieldIndex(self, char pszFieldName, int bExactMatch) -> int

        int
        OGR_L_FindFieldIndex(OGRLayerH hLayer, const char *pszFieldName, int
        bExactMatch)

        Find the index of field in a layer.

        The returned number is the index of the field in the layers, or -1 if
        the field doesn't exist.

        If bExactMatch is set to FALSE and the field doesn't exists in the
        given form the driver might apply some changes to make it match, like
        those it might do if the layer was created (eg. like LAUNDER in the
        OCI driver).

        This method is the same as the C++ method OGRLayer::FindFieldIndex().

        field index, or -1 if the field doesn't exist 
        """
        return _ogr.Layer_FindFieldIndex(self, *args)

    def GetSpatialRef(self, *args):
        """
        GetSpatialRef(self) -> SpatialReference

        OGRSpatialReferenceH
        OGR_L_GetSpatialRef(OGRLayerH hLayer)

        Fetch the spatial reference system for this layer.

        The returned object is owned by the OGRLayer and should not be
        modified or freed by the application.

        This function is the same as the C++ method OGRLayer::GetSpatialRef().

        Parameters:
        -----------

        hLayer:  handle to the layer to get the spatial reference from.

        spatial reference, or NULL if there isn't one. 
        """
        return _ogr.Layer_GetSpatialRef(self, *args)

    def GetFeaturesRead(self, *args):
        """
        GetFeaturesRead(self) -> GIntBig

        GIntBig
        OGR_L_GetFeaturesRead(OGRLayerH hLayer) 
        """
        return _ogr.Layer_GetFeaturesRead(self, *args)

    def SetIgnoredFields(self, *args):
        """
        SetIgnoredFields(self, char options) -> OGRErr

        OGRErr
        OGR_L_SetIgnoredFields(OGRLayerH hLayer, const char **papszFields)

        Set which fields can be omitted when retrieving features from the
        layer.

        If the driver supports this functionality (testable using
        OLCIgnoreFields capability), it will not fetch the specified fields in
        subsequent calls to GetFeature() / GetNextFeature() and thus save some
        processing time and/or bandwidth.

        Besides field names of the layers, the following special fields can be
        passed: "OGR_GEOMETRY" to ignore geometry and "OGR_STYLE" to
        ignore layer style.

        By default, no fields are ignored.

        This method is the same as the C++ method OGRLayer::SetIgnoredFields()

        Parameters:
        -----------

        papszFields:  an array of field names terminated by NULL item. If NULL
        is passed, the ignored list is cleared.

        OGRERR_NONE if all field names have been resolved (even if the driver
        does not support this method) 
        """
        return _ogr.Layer_SetIgnoredFields(self, *args)

    def Intersection(self, *args, **kwargs):
        """
        Intersection(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr
        OGR_L_Intersection(OGRLayerH pLayerInput, OGRLayerH pLayerMethod,
        OGRLayerH pLayerResult, char **papszOptions, GDALProgressFunc
        pfnProgress, void *pProgressArg)

        Intersection of two layers.

        The result layer contains features whose geometries represent areas
        that are common between features in the input layer and in the method
        layer. The features in the result layer have attributes from both
        input and method layers. The schema of the result layer can be set by
        the user or, if it is empty, is initialized to contain all fields in
        the input and method layers.

        If the schema of the result is set by user and contains fields that
        have the same name as a field in input and in method layer, then the
        attribute in the result feature will get the value from the feature of
        the method layer.

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        USE_PREPARED_GEOMETRIES=YES/NO. Set to NO to not use prepared
        geometries to pretest intersection of features of method layer with
        features of this layer.

        PRETEST_CONTAINMENT=YES/NO. Set to YES to pretest the containment of
        features of method layer within the features of this layer. This will
        speed up the method significantly in some cases. Requires that the
        prepared geometries are in effect.

        KEEP_LOWER_DIMENSION_GEOMETRIES=YES/NO. Set to NO to skip result
        features with lower dimension geometry that would otherwise be added
        to the result layer. The default is to add but only if the result
        layer has an unknown geometry type.

        This function is the same as the C++ method OGRLayer::Intersection().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Intersection(self, *args, **kwargs)

    def Union(self, *args, **kwargs):
        """
        Union(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr OGR_L_Union(OGRLayerH
        pLayerInput, OGRLayerH pLayerMethod, OGRLayerH pLayerResult, char
        **papszOptions, GDALProgressFunc pfnProgress, void *pProgressArg)

        Union of two layers.

        The result layer contains features whose geometries represent areas
        that are in either in the input layer, in the method layer, or in
        both. The features in the result layer have attributes from both input
        and method layers. For features which represent areas that are only in
        the input or in the method layer the respective attributes have
        undefined values. The schema of the result layer can be set by the
        user or, if it is empty, is initialized to contain all fields in the
        input and method layers.

        If the schema of the result is set by user and contains fields that
        have the same name as a field in input and in method layer, then the
        attribute in the result feature will get the value from the feature of
        the method layer (even if it is undefined).

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        USE_PREPARED_GEOMETRIES=YES/NO. Set to NO to not use prepared
        geometries to pretest intersection of features of method layer with
        features of this layer.

        KEEP_LOWER_DIMENSION_GEOMETRIES=YES/NO. Set to NO to skip result
        features with lower dimension geometry that would otherwise be added
        to the result layer. The default is to add but only if the result
        layer has an unknown geometry type.

        This function is the same as the C++ method OGRLayer::Union().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Union(self, *args, **kwargs)

    def SymDifference(self, *args, **kwargs):
        """
        SymDifference(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr
        OGR_L_SymDifference(OGRLayerH pLayerInput, OGRLayerH pLayerMethod,
        OGRLayerH pLayerResult, char **papszOptions, GDALProgressFunc
        pfnProgress, void *pProgressArg)

        Symmetrical difference of two layers.

        The result layer contains features whose geometries represent areas
        that are in either in the input layer or in the method layer but not
        in both. The features in the result layer have attributes from both
        input and method layers. For features which represent areas that are
        only in the input or in the method layer the respective attributes
        have undefined values. The schema of the result layer can be set by
        the user or, if it is empty, is initialized to contain all fields in
        the input and method layers.

        If the schema of the result is set by user and contains fields that
        have the same name as a field in input and in method layer, then the
        attribute in the result feature will get the value from the feature of
        the method layer (even if it is undefined).

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        This function is the same as the C++ method OGRLayer::SymDifference().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_SymDifference(self, *args, **kwargs)

    def Identity(self, *args, **kwargs):
        """
        Identity(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr OGR_L_Identity(OGRLayerH
        pLayerInput, OGRLayerH pLayerMethod, OGRLayerH pLayerResult, char
        **papszOptions, GDALProgressFunc pfnProgress, void *pProgressArg)

        Identify the features of this layer with the ones from the identity
        layer.

        The result layer contains features whose geometries represent areas
        that are in the input layer. The features in the result layer have
        attributes from both input and method layers. The schema of the result
        layer can be set by the user or, if it is empty, is initialized to
        contain all fields in input and method layers.

        If the schema of the result is set by user and contains fields that
        have the same name as a field in input and in method layer, then the
        attribute in the result feature will get the value from the feature of
        the method layer (even if it is undefined).

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        USE_PREPARED_GEOMETRIES=YES/NO. Set to NO to not use prepared
        geometries to pretest intersection of features of method layer with
        features of this layer.

        KEEP_LOWER_DIMENSION_GEOMETRIES=YES/NO. Set to NO to skip result
        features with lower dimension geometry that would otherwise be added
        to the result layer. The default is to add but only if the result
        layer has an unknown geometry type.

        This function is the same as the C++ method OGRLayer::Identity().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Identity(self, *args, **kwargs)

    def Update(self, *args, **kwargs):
        """
        Update(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr OGR_L_Update(OGRLayerH
        pLayerInput, OGRLayerH pLayerMethod, OGRLayerH pLayerResult, char
        **papszOptions, GDALProgressFunc pfnProgress, void *pProgressArg)

        Update this layer with features from the update layer.

        The result layer contains features whose geometries represent areas
        that are either in the input layer or in the method layer. The
        features in the result layer have areas of the features of the method
        layer or those ares of the features of the input layer that are not
        covered by the method layer. The features of the result layer get
        their attributes from the input layer. The schema of the result layer
        can be set by the user or, if it is empty, is initialized to contain
        all fields in the input layer.

        If the schema of the result is set by user and contains fields that
        have the same name as a field in the method layer, then the attribute
        in the result feature the originates from the method layer will get
        the value from the feature of the method layer.

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        This function is the same as the C++ method OGRLayer::Update().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Update(self, *args, **kwargs)

    def Clip(self, *args, **kwargs):
        """
        Clip(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr OGR_L_Clip(OGRLayerH pLayerInput,
        OGRLayerH pLayerMethod, OGRLayerH pLayerResult, char **papszOptions,
        GDALProgressFunc pfnProgress, void *pProgressArg)

        Clip off areas that are not covered by the method layer.

        The result layer contains features whose geometries represent areas
        that are in the input layer and in the method layer. The features in
        the result layer have the (possibly clipped) areas of features in the
        input layer and the attributes from the same features. The schema of
        the result layer can be set by the user or, if it is empty, is
        initialized to contain all fields in the input layer.

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        This function is the same as the C++ method OGRLayer::Clip().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Clip(self, *args, **kwargs)

    def Erase(self, *args, **kwargs):
        """
        Erase(self, Layer method_layer, Layer result_layer, char options = None, 
            GDALProgressFunc callback = 0, void callback_data = None) -> OGRErr

        OGRErr OGR_L_Erase(OGRLayerH
        pLayerInput, OGRLayerH pLayerMethod, OGRLayerH pLayerResult, char
        **papszOptions, GDALProgressFunc pfnProgress, void *pProgressArg)

        Remove areas that are covered by the method layer.

        The result layer contains features whose geometries represent areas
        that are in the input layer but not in the method layer. The features
        in the result layer have attributes from the input layer. The schema
        of the result layer can be set by the user or, if it is empty, is
        initialized to contain all fields in the input layer.

        For best performance use the minimum amount of features in the method
        layer and copy it into a memory layer.

        This method relies on GEOS support. Do not use unless the GEOS support
        is compiled in.  The recognized list of options is :
        SKIP_FAILURES=YES/NO. Set it to YES to go on, even when a feature
        could not be inserted or a GEOS call failed.

        PROMOTE_TO_MULTI=YES/NO. Set it to YES to convert Polygons into
        MultiPolygons, or LineStrings to MultiLineStrings.

        INPUT_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the input layer.

        METHOD_PREFIX=string. Set a prefix for the field names that will be
        created from the fields of the method layer.

        This function is the same as the C++ method OGRLayer::Erase().

        Parameters:
        -----------

        pLayerInput:  the input layer. Should not be NULL.

        pLayerMethod:  the method layer. Should not be NULL.

        pLayerResult:  the layer where the features resulting from the
        operation are inserted. Should not be NULL. See above the note about
        the schema.

        papszOptions:  NULL terminated list of options (may be NULL).

        pfnProgress:  a GDALProgressFunc() compatible callback function for
        reporting progress or NULL.

        pProgressArg:  argument to be passed to pfnProgress. May be NULL.

        an error code if there was an error or the execution was interrupted,
        OGRERR_NONE otherwise.

        The first geometry field is always used.

        OGR 1.10 
        """
        return _ogr.Layer_Erase(self, *args, **kwargs)

    def GetStyleTable(self, *args):
        """
        GetStyleTable(self) -> StyleTable

        OGRStyleTableH
        OGR_L_GetStyleTable(OGRLayerH hLayer)

        Get style table. 
        """
        return _ogr.Layer_GetStyleTable(self, *args)

    def SetStyleTable(self, *args):
        """
        SetStyleTable(self, StyleTable table)

        void
        OGR_L_SetStyleTable(OGRLayerH hLayer, OGRStyleTableH hStyleTable)

        Set style table. 
        """
        return _ogr.Layer_SetStyleTable(self, *args)

    def Reference(self):
      "For backwards compatibility only."
      pass

    def Dereference(self):
      "For backwards compatibility only."
      pass

    def __len__(self):
        """Returns the number of features in the layer"""
        return self.GetFeatureCount()

    # To avoid __len__ being called when testing boolean value
    # which can have side effects (#4758)
    def __nonzero__(self):
        return True

    # For Python 3 compat
    __bool__ = __nonzero__

    def __getitem__(self, value):
        """Support list and slice -like access to the layer.
        layer[0] would return the first feature on the layer.
        layer[0:4] would return a list of the first four features."""
        if isinstance(value, slice):
            import sys
            output = []
            if value.stop == sys.maxint:
                #for an unending slice, sys.maxint is used
                #We need to stop before that or GDAL will write an
                ##error to stdout
                stop = len(self) - 1
            else:
                stop = value.stop
            for i in xrange(value.start,stop,value.step):
                feature = self.GetFeature(i)
                if feature:
                    output.append(feature)
                else:
                    return output
            return output
        if isinstance(value, int):
            if value > len(self)-1:
                raise IndexError
            return self.GetFeature(value)
        else:
            raise TypeError("Input %s is not of IntType or SliceType" % type(value))

    def CreateFields(self, fields):
        """Create a list of fields on the Layer"""
        for i in fields:
            self.CreateField(i)

    def __iter__(self):
        return self

    def next(self):
        feature = self.GetNextFeature()
        if not feature:
            raise StopIteration
        else:
            return feature

    def schema(self):
        output = []
        defn = self.GetLayerDefn()
        for n in range(defn.GetFieldCount()):
            output.append(defn.GetFieldDefn(n))
        return output
    schema = property(schema)


Layer_swigregister = _ogr.Layer_swigregister
Layer_swigregister(Layer)

class Feature(object):
    """Proxy of C++ OGRFeatureShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    __swig_destroy__ = _ogr.delete_Feature
    __del__ = lambda self : None;
    def __init__(self, *args, **kwargs): 
        """__init__(self, FeatureDefn feature_def) -> Feature"""
        this = _ogr.new_Feature(*args, **kwargs)
        try: self.this.append(this)
        except: self.this = this
    def GetDefnRef(self, *args):
        """
        GetDefnRef(self) -> FeatureDefn

        OGRFeatureDefnH
        OGR_F_GetDefnRef(OGRFeatureH hFeat)

        Fetch feature definition.

        This function is the same as the C++ method OGRFeature::GetDefnRef().

        Parameters:
        -----------

        hFeat:  handle to the feature to get the feature definition from.

        an handle to the feature definition object on which feature depends.

        """
        return _ogr.Feature_GetDefnRef(self, *args)

    def SetGeometry(self, *args):
        """
        SetGeometry(self, Geometry geom) -> OGRErr

        OGRErr
        OGR_F_SetGeometry(OGRFeatureH hFeat, OGRGeometryH hGeom)

        Set feature geometry.

        This function updates the features geometry, and operate exactly as
        SetGeometryDirectly(), except that this function does not assume
        ownership of the passed geometry, but instead makes a copy of it.

        This function is the same as the C++ OGRFeature::SetGeometry().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature on which new geometry is applied to.

        hGeom:  handle to the new geometry to apply to feature.

        OGRERR_NONE if successful, or OGR_UNSUPPORTED_GEOMETRY_TYPE if the
        geometry type is illegal for the OGRFeatureDefn (checking not yet
        implemented). 
        """
        return _ogr.Feature_SetGeometry(self, *args)

    def SetGeometryDirectly(self, *args):
        """
        SetGeometryDirectly(self, Geometry geom) -> OGRErr

        OGRErr
        OGR_F_SetGeometryDirectly(OGRFeatureH hFeat, OGRGeometryH hGeom)

        Set feature geometry.

        This function updates the features geometry, and operate exactly as
        SetGeometry(), except that this function assumes ownership of the
        passed geometry (even in case of failure of that function).

        This function is the same as the C++ method
        OGRFeature::SetGeometryDirectly.

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature on which to apply the geometry.

        hGeom:  handle to the new geometry to apply to feature.

        OGRERR_NONE if successful, or OGR_UNSUPPORTED_GEOMETRY_TYPE if the
        geometry type is illegal for the OGRFeatureDefn (checking not yet
        implemented). 
        """
        return _ogr.Feature_SetGeometryDirectly(self, *args)

    def GetGeometryRef(self, *args):
        """
        GetGeometryRef(self) -> Geometry

        OGRGeometryH
        OGR_F_GetGeometryRef(OGRFeatureH hFeat)

        Fetch an handle to feature geometry.

        This function is essentially the same as the C++ method
        OGRFeature::GetGeometryRef() (the only difference is that this C
        function honours OGRGetNonLinearGeometriesEnabledFlag())

        Parameters:
        -----------

        hFeat:  handle to the feature to get geometry from.

        an handle to internal feature geometry. This object should not be
        modified. 
        """
        return _ogr.Feature_GetGeometryRef(self, *args)

    def SetGeomField(self, *args):
        """
        SetGeomField(self, int iField, Geometry geom) -> OGRErr
        SetGeomField(self, char field_name, Geometry geom) -> OGRErr

        OGRErr
        OGR_F_SetGeomField(OGRFeatureH hFeat, int iField, OGRGeometryH hGeom)

        Set feature geometry of a specified geometry field.

        This function updates the features geometry, and operate exactly as
        SetGeometryDirectly(), except that this function does not assume
        ownership of the passed geometry, but instead makes a copy of it.

        This function is the same as the C++ OGRFeature::SetGeomField().

        Parameters:
        -----------

        hFeat:  handle to the feature on which new geometry is applied to.

        iField:  geometry field to set.

        hGeom:  handle to the new geometry to apply to feature.

        OGRERR_NONE if successful, or OGR_UNSUPPORTED_GEOMETRY_TYPE if the
        geometry type is illegal for the OGRFeatureDefn (checking not yet
        implemented). 
        """
        return _ogr.Feature_SetGeomField(self, *args)

    def SetGeomFieldDirectly(self, *args):
        """
        SetGeomFieldDirectly(self, int iField, Geometry geom) -> OGRErr
        SetGeomFieldDirectly(self, char field_name, Geometry geom) -> OGRErr

        OGRErr
        OGR_F_SetGeomFieldDirectly(OGRFeatureH hFeat, int iField, OGRGeometryH
        hGeom)

        Set feature geometry of a specified geometry field.

        This function updates the features geometry, and operate exactly as
        SetGeomField(), except that this function assumes ownership of the
        passed geometry (even in case of failure of that function).

        This function is the same as the C++ method
        OGRFeature::SetGeomFieldDirectly.

        Parameters:
        -----------

        hFeat:  handle to the feature on which to apply the geometry.

        iField:  geometry field to set.

        hGeom:  handle to the new geometry to apply to feature.

        OGRERR_NONE if successful, or OGRERR_FAILURE if the index is invalid,
        or OGR_UNSUPPORTED_GEOMETRY_TYPE if the geometry type is illegal for
        the OGRFeatureDefn (checking not yet implemented).

        GDAL 1.11 
        """
        return _ogr.Feature_SetGeomFieldDirectly(self, *args)

    def GetGeomFieldRef(self, *args):
        """
        GetGeomFieldRef(self, int iField) -> Geometry
        GetGeomFieldRef(self, char field_name) -> Geometry

        OGRGeometryH
        OGR_F_GetGeomFieldRef(OGRFeatureH hFeat, int iField)

        Fetch an handle to feature geometry.

        This function is the same as the C++ method
        OGRFeature::GetGeomFieldRef().

        Parameters:
        -----------

        hFeat:  handle to the feature to get geometry from.

        iField:  geometry field to get.

        an handle to internal feature geometry. This object should not be
        modified.

        GDAL 1.11 
        """
        return _ogr.Feature_GetGeomFieldRef(self, *args)

    def Clone(self, *args):
        """
        Clone(self) -> Feature

        OGRFeatureH OGR_F_Clone(OGRFeatureH
        hFeat)

        Duplicate feature.

        The newly created feature is owned by the caller, and will have it's
        own reference to the OGRFeatureDefn.

        This function is the same as the C++ method OGRFeature::Clone().

        Parameters:
        -----------

        hFeat:  handle to the feature to clone.

        an handle to the new feature, exactly matching this feature. 
        """
        return _ogr.Feature_Clone(self, *args)

    def Equal(self, *args):
        """
        Equal(self, Feature feature) -> bool

        int OGR_F_Equal(OGRFeatureH hFeat,
        OGRFeatureH hOtherFeat)

        Test if two features are the same.

        Two features are considered equal if the share them (handle equality)
        same OGRFeatureDefn, have the same field values, and the same geometry
        (as tested by OGR_G_Equal()) as well as the same feature id.

        This function is the same as the C++ method OGRFeature::Equal().

        Parameters:
        -----------

        hFeat:  handle to one of the feature.

        hOtherFeat:  handle to the other feature to test this one against.

        TRUE if they are equal, otherwise FALSE. 
        """
        return _ogr.Feature_Equal(self, *args)

    def GetFieldCount(self, *args):
        """
        GetFieldCount(self) -> int

        int
        OGR_F_GetFieldCount(OGRFeatureH hFeat)

        Fetch number of fields on this feature This will always be the same as
        the field count for the OGRFeatureDefn.

        This function is the same as the C++ method
        OGRFeature::GetFieldCount().

        Parameters:
        -----------

        hFeat:  handle to the feature to get the fields count from.

        count of fields. 
        """
        return _ogr.Feature_GetFieldCount(self, *args)

    def GetFieldDefnRef(self, *args):
        """
        GetFieldDefnRef(self, int id) -> FieldDefn
        GetFieldDefnRef(self, char field_name) -> FieldDefn

        OGRFieldDefnH
        OGR_F_GetFieldDefnRef(OGRFeatureH hFeat, int i)

        Fetch definition for this field.

        This function is the same as the C++ method
        OGRFeature::GetFieldDefnRef().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is found.

        i:  the field to fetch, from 0 to GetFieldCount()-1.

        an handle to the field definition (from the OGRFeatureDefn). This is
        an internal reference, and should not be deleted or modified. 
        """
        return _ogr.Feature_GetFieldDefnRef(self, *args)

    def GetGeomFieldCount(self, *args):
        """
        GetGeomFieldCount(self) -> int

        int
        OGR_F_GetGeomFieldCount(OGRFeatureH hFeat)

        Fetch number of geometry fields on this feature This will always be
        the same as the geometry field count for the OGRFeatureDefn.

        This function is the same as the C++ method
        OGRFeature::GetGeomFieldCount().

        Parameters:
        -----------

        hFeat:  handle to the feature to get the geometry fields count from.

        count of geometry fields.

        GDAL 1.11 
        """
        return _ogr.Feature_GetGeomFieldCount(self, *args)

    def GetGeomFieldDefnRef(self, *args):
        """
        GetGeomFieldDefnRef(self, int id) -> GeomFieldDefn
        GetGeomFieldDefnRef(self, char field_name) -> GeomFieldDefn

        OGRGeomFieldDefnH
        OGR_F_GetGeomFieldDefnRef(OGRFeatureH hFeat, int i)

        Fetch definition for this geometry field.

        This function is the same as the C++ method
        OGRFeature::GetGeomFieldDefnRef().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is found.

        i:  the field to fetch, from 0 to GetGeomFieldCount()-1.

        an handle to the field definition (from the OGRFeatureDefn). This is
        an internal reference, and should not be deleted or modified.

        GDAL 1.11 
        """
        return _ogr.Feature_GetGeomFieldDefnRef(self, *args)

    def GetFieldAsString(self, *args):
        """
        GetFieldAsString(self, int id) -> char
        GetFieldAsString(self, char field_name) -> char

        const char*
        OGR_F_GetFieldAsString(OGRFeatureH hFeat, int iField)

        Fetch field value as a string.

        OFTReal and OFTInteger fields will be translated to string using
        sprintf(), but not necessarily using the established formatting rules.
        Other field types, or errors will result in a return value of zero.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsString().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        the field value. This string is internal, and should not be modified,
        or freed. Its lifetime may be very brief. 
        """
        return _ogr.Feature_GetFieldAsString(self, *args)

    def GetFieldAsInteger(self, *args):
        """
        GetFieldAsInteger(self, int id) -> int
        GetFieldAsInteger(self, char field_name) -> int

        int
        OGR_F_GetFieldAsInteger(OGRFeatureH hFeat, int iField)

        Fetch field value as integer.

        OFTString features will be translated using atoi(). OFTReal fields
        will be cast to integer. Other field types, or errors will result in a
        return value of zero.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsInteger().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        the field value. 
        """
        return _ogr.Feature_GetFieldAsInteger(self, *args)

    def GetFieldAsInteger64(self, *args):
        """
        GetFieldAsInteger64(self, int id) -> GIntBig
        GetFieldAsInteger64(self, char field_name) -> GIntBig

        GIntBig
        OGR_F_GetFieldAsInteger64(OGRFeatureH hFeat, int iField)

        Fetch field value as integer 64 bit.

        OFTInteger are promoted to 64 bit. OFTString features will be
        translated using CPLAtoGIntBig(). OFTReal fields will be cast to
        integer. Other field types, or errors will result in a return value of
        zero.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsInteger64().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        the field value.

        GDAL 2.0 
        """
        return _ogr.Feature_GetFieldAsInteger64(self, *args)

    def GetFieldAsDouble(self, *args):
        """
        GetFieldAsDouble(self, int id) -> double
        GetFieldAsDouble(self, char field_name) -> double

        double
        OGR_F_GetFieldAsDouble(OGRFeatureH hFeat, int iField)

        Fetch field value as a double.

        OFTString features will be translated using CPLAtof(). OFTInteger
        fields will be cast to double. Other field types, or errors will
        result in a return value of zero.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsDouble().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        the field value. 
        """
        return _ogr.Feature_GetFieldAsDouble(self, *args)

    def GetFieldAsDateTime(self, *args):
        """
        GetFieldAsDateTime(self, int id)
        GetFieldAsDateTime(self, char field_name)

        int
        OGR_F_GetFieldAsDateTime(OGRFeatureH hFeat, int iField, int *pnYear,
        int *pnMonth, int *pnDay, int *pnHour, int *pnMinute, int *pnSecond,
        int *pnTZFlag)

        Fetch field value as date and time.

        Currently this method only works for OFTDate, OFTTime and OFTDateTime
        fields.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsDateTime().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pnYear:  (including century)

        pnMonth:  (1-12)

        pnDay:  (1-31)

        pnHour:  (0-23)

        pnMinute:  (0-59)

        pnSecond:  (0-59)

        pnTZFlag:  (0=unknown, 1=localtime, 100=GMT, see data model for
        details)

        TRUE on success or FALSE on failure.

        See:  Use OGR_F_GetFieldAsDateTimeEx() for second with millisecond
        accuracy. 
        """
        return _ogr.Feature_GetFieldAsDateTime(self, *args)

    def GetFieldAsIntegerList(self, *args):
        """
        GetFieldAsIntegerList(self, int id)
        GetFieldAsIntegerList(self, char field_name)

        const int*
        OGR_F_GetFieldAsIntegerList(OGRFeatureH hFeat, int iField, int
        *pnCount)

        Fetch field value as a list of integers.

        Currently this function only works for OFTIntegerList fields.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsIntegerList().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pnCount:  an integer to put the list count (number of integers) into.

        the field value. This list is internal, and should not be modified, or
        freed. Its lifetime may be very brief. If *pnCount is zero on return
        the returned pointer may be NULL or non-NULL. 
        """
        return _ogr.Feature_GetFieldAsIntegerList(self, *args)

    def GetFieldAsInteger64List(self, *args):
        """
        GetFieldAsInteger64List(self, int id)

        const GIntBig*
        OGR_F_GetFieldAsInteger64List(OGRFeatureH hFeat, int iField, int
        *pnCount)

        Fetch field value as a list of 64 bit integers.

        Currently this function only works for OFTInteger64List fields.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsInteger64List().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pnCount:  an integer to put the list count (number of integers) into.

        the field value. This list is internal, and should not be modified, or
        freed. Its lifetime may be very brief. If *pnCount is zero on return
        the returned pointer may be NULL or non-NULL.

        GDAL 2.0 
        """
        return _ogr.Feature_GetFieldAsInteger64List(self, *args)

    def GetFieldAsDoubleList(self, *args):
        """
        GetFieldAsDoubleList(self, int id)
        GetFieldAsDoubleList(self, char field_name)

        const double*
        OGR_F_GetFieldAsDoubleList(OGRFeatureH hFeat, int iField, int
        *pnCount)

        Fetch field value as a list of doubles.

        Currently this function only works for OFTRealList fields.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsDoubleList().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pnCount:  an integer to put the list count (number of doubles) into.

        the field value. This list is internal, and should not be modified, or
        freed. Its lifetime may be very brief. If *pnCount is zero on return
        the returned pointer may be NULL or non-NULL. 
        """
        return _ogr.Feature_GetFieldAsDoubleList(self, *args)

    def GetFieldAsStringList(self, *args):
        """
        GetFieldAsStringList(self, int id) -> char

        char**
        OGR_F_GetFieldAsStringList(OGRFeatureH hFeat, int iField)

        Fetch field value as a list of strings.

        Currently this method only works for OFTStringList fields.

        The returned list is terminated by a NULL pointer. The number of
        elements can also be calculated using CSLCount().

        This function is the same as the C++ method
        OGRFeature::GetFieldAsStringList().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        the field value. This list is internal, and should not be modified, or
        freed. Its lifetime may be very brief. 
        """
        return _ogr.Feature_GetFieldAsStringList(self, *args)

    def GetFieldAsBinary(self, *args):
        """
        GetFieldAsBinary(self, int id) -> OGRErr
        GetFieldAsBinary(self, char field_name) -> OGRErr

        GByte*
        OGR_F_GetFieldAsBinary(OGRFeatureH hFeat, int iField, int *pnBytes)

        Fetch field value as binary.

        This method only works for OFTBinary and OFTString fields.

        This function is the same as the C++ method
        OGRFeature::GetFieldAsBinary().

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pnBytes:  location to place count of bytes returned.

        the field value. This list is internal, and should not be modified, or
        freed. Its lifetime may be very brief. 
        """
        return _ogr.Feature_GetFieldAsBinary(self, *args)

    def IsFieldSet(self, *args):
        """
        IsFieldSet(self, int id) -> bool
        IsFieldSet(self, char field_name) -> bool

        int OGR_F_IsFieldSet(OGRFeatureH
        hFeat, int iField)

        Test if a field has ever been assigned a value or not.

        This function is the same as the C++ method OGRFeature::IsFieldSet().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is.

        iField:  the field to test.

        TRUE if the field has been set, otherwise false. 
        """
        return _ogr.Feature_IsFieldSet(self, *args)

    def IsFieldNull(self, *args):
        """
        IsFieldNull(self, int id) -> bool
        IsFieldNull(self, char field_name) -> bool

        int OGR_F_IsFieldNull(OGRFeatureH
        hFeat, int iField)

        Test if a field is null.

        This function is the same as the C++ method OGRFeature::IsFieldNull().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is.

        iField:  the field to test.

        TRUE if the field is null, otherwise false.

        GDAL 2.2 
        """
        return _ogr.Feature_IsFieldNull(self, *args)

    def IsFieldSetAndNotNull(self, *args):
        """
        IsFieldSetAndNotNull(self, int id) -> bool
        IsFieldSetAndNotNull(self, char field_name) -> bool

        int
        OGR_F_IsFieldSetAndNotNull(OGRFeatureH hFeat, int iField)

        Test if a field is set and not null.

        This function is the same as the C++ method
        OGRFeature::IsFieldSetAndNotNull().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is.

        iField:  the field to test.

        TRUE if the field is set and not null, otherwise false.

        GDAL 2.2 
        """
        return _ogr.Feature_IsFieldSetAndNotNull(self, *args)

    def GetFieldIndex(self, *args):
        """
        GetFieldIndex(self, char field_name) -> int

        int
        OGR_F_GetFieldIndex(OGRFeatureH hFeat, const char *pszName)

        Fetch the field index given field name.

        This is a cover for the OGRFeatureDefn::GetFieldIndex() method.

        This function is the same as the C++ method
        OGRFeature::GetFieldIndex().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is found.

        pszName:  the name of the field to search for.

        the field index, or -1 if no matching field is found. 
        """
        return _ogr.Feature_GetFieldIndex(self, *args)

    def GetGeomFieldIndex(self, *args):
        """
        GetGeomFieldIndex(self, char field_name) -> int

        int
        OGR_F_GetGeomFieldIndex(OGRFeatureH hFeat, const char *pszName)

        Fetch the geometry field index given geometry field name.

        This is a cover for the OGRFeatureDefn::GetGeomFieldIndex() method.

        This function is the same as the C++ method
        OGRFeature::GetGeomFieldIndex().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the geometry field is found.

        pszName:  the name of the geometry field to search for.

        the geometry field index, or -1 if no matching geometry field is
        found.

        GDAL 1.11 
        """
        return _ogr.Feature_GetGeomFieldIndex(self, *args)

    def GetFID(self, *args):
        """
        GetFID(self) -> GIntBig

        GIntBig OGR_F_GetFID(OGRFeatureH
        hFeat)

        Get feature identifier.

        This function is the same as the C++ method OGRFeature::GetFID().
        Note: since GDAL 2.0, this method returns a GIntBig (previously a
        long)

        Parameters:
        -----------

        hFeat:  handle to the feature from which to get the feature
        identifier.

        feature id or OGRNullFID if none has been assigned. 
        """
        return _ogr.Feature_GetFID(self, *args)

    def SetFID(self, *args):
        """
        SetFID(self, GIntBig fid) -> OGRErr

        OGRErr OGR_F_SetFID(OGRFeatureH hFeat,
        GIntBig nFID)

        Set the feature identifier.

        For specific types of features this operation may fail on illegal
        features ids. Generally it always succeeds. Feature ids should be
        greater than or equal to zero, with the exception of OGRNullFID (-1)
        indicating that the feature id is unknown.

        This function is the same as the C++ method OGRFeature::SetFID().

        Parameters:
        -----------

        hFeat:  handle to the feature to set the feature id to.

        nFID:  the new feature identifier value to assign.

        On success OGRERR_NONE, or on failure some other value. 
        """
        return _ogr.Feature_SetFID(self, *args)

    def DumpReadable(self, *args):
        """
        DumpReadable(self)

        void
        OGR_F_DumpReadable(OGRFeatureH hFeat, FILE *fpOut)

        Dump this feature in a human readable form.

        This dumps the attributes, and geometry; however, it doesn't
        definition information (other than field types and names), nor does it
        report the geometry spatial reference system.

        This function is the same as the C++ method
        OGRFeature::DumpReadable().

        Parameters:
        -----------

        hFeat:  handle to the feature to dump.

        fpOut:  the stream to write to, such as strout. 
        """
        return _ogr.Feature_DumpReadable(self, *args)

    def UnsetField(self, *args):
        """
        UnsetField(self, int id)
        UnsetField(self, char field_name)

        void OGR_F_UnsetField(OGRFeatureH
        hFeat, int iField)

        Clear a field, marking it as unset.

        This function is the same as the C++ method OGRFeature::UnsetField().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is.

        iField:  the field to unset. 
        """
        return _ogr.Feature_UnsetField(self, *args)

    def SetFieldNull(self, *args):
        """
        SetFieldNull(self, int id)
        SetFieldNull(self, char field_name)

        void
        OGR_F_SetFieldNull(OGRFeatureH hFeat, int iField)

        Clear a field, marking it as null.

        This function is the same as the C++ method
        OGRFeature::SetFieldNull().

        Parameters:
        -----------

        hFeat:  handle to the feature on which the field is.

        iField:  the field to set to null.

        GDAL 2.2 
        """
        return _ogr.Feature_SetFieldNull(self, *args)

    def SetFieldInteger64(self, *args):
        """
        SetFieldInteger64(self, int id, GIntBig value)

        void
        OGR_F_SetFieldInteger64(OGRFeatureH hFeat, int iField, GIntBig nValue)

        Set field to 64 bit integer value.

        OFTInteger, OFTInteger64 and OFTReal fields will be set directly.
        OFTString fields will be assigned a string representation of the
        value, but not necessarily taking into account formatting constraints
        on this field. Other field types may be unaffected.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        nValue:  the value to assign.

        GDAL 2.0 
        """
        return _ogr.Feature_SetFieldInteger64(self, *args)

    def SetField(self, *args):
        """
        SetField(self, int id, char value)
        SetField(self, char field_name, char value)
        SetField(self, int id, double value)
        SetField(self, char field_name, double value)
        SetField(self, int id, int year, int month, int day, int hour, int minute, 
            float second, int tzflag)
        SetField(self, char field_name, int year, int month, int day, int hour, 
            int minute, float second, int tzflag)
        """
        return _ogr.Feature_SetField(self, *args)

    def SetFieldIntegerList(self, *args):
        """
        SetFieldIntegerList(self, int id, int nList)

        void
        OGR_F_SetFieldIntegerList(OGRFeatureH hFeat, int iField, int nCount,
        int *panValues)

        Set field to list of integers value.

        This function currently on has an effect of OFTIntegerList,
        OFTInteger64List and OFTRealList fields.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to set, from 0 to GetFieldCount()-1.

        nCount:  the number of values in the list being assigned.

        panValues:  the values to assign. 
        """
        return _ogr.Feature_SetFieldIntegerList(self, *args)

    def SetFieldInteger64List(self, *args):
        """
        SetFieldInteger64List(self, int id, int nList)

        void
        OGR_F_SetFieldInteger64List(OGRFeatureH hFeat, int iField, int nCount,
        const GIntBig *panValues)

        Set field to list of 64 bit integers value.

        This function currently on has an effect of OFTIntegerList,
        OFTInteger64List and OFTRealList fields.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to set, from 0 to GetFieldCount()-1.

        nCount:  the number of values in the list being assigned.

        panValues:  the values to assign.

        GDAL 2.0 
        """
        return _ogr.Feature_SetFieldInteger64List(self, *args)

    def SetFieldDoubleList(self, *args):
        """
        SetFieldDoubleList(self, int id, int nList)

        void
        OGR_F_SetFieldDoubleList(OGRFeatureH hFeat, int iField, int nCount,
        double *padfValues)

        Set field to list of doubles value.

        This function currently on has an effect of OFTIntegerList,
        OFTInteger64List, OFTRealList fields.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to set, from 0 to GetFieldCount()-1.

        nCount:  the number of values in the list being assigned.

        padfValues:  the values to assign. 
        """
        return _ogr.Feature_SetFieldDoubleList(self, *args)

    def SetFieldStringList(self, *args):
        """
        SetFieldStringList(self, int id, char pList)

        void
        OGR_F_SetFieldStringList(OGRFeatureH hFeat, int iField, char
        **papszValues)

        Set field to list of strings value.

        This function currently on has an effect of OFTStringList fields.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to set, from 0 to GetFieldCount()-1.

        papszValues:  the values to assign. 
        """
        return _ogr.Feature_SetFieldStringList(self, *args)

    def SetFieldBinaryFromHexString(self, *args):
        """
        SetFieldBinaryFromHexString(self, int id, char pszValue)
        SetFieldBinaryFromHexString(self, char field_name, char pszValue)
        """
        return _ogr.Feature_SetFieldBinaryFromHexString(self, *args)

    def SetFrom(self, *args, **kwargs):
        """
        SetFrom(self, Feature other, int forgiving = 1) -> OGRErr

        OGRErr OGR_F_SetFrom(OGRFeatureH
        hFeat, OGRFeatureH hOtherFeat, int bForgiving)

        Set one feature from another.

        Overwrite the contents of this feature from the geometry and
        attributes of another. The hOtherFeature does not need to have the
        same OGRFeatureDefn. Field values are copied by corresponding field
        names. Field types do not have to exactly match. OGR_F_SetField*()
        function conversion rules will be applied as needed.

        This function is the same as the C++ method OGRFeature::SetFrom().

        Parameters:
        -----------

        hFeat:  handle to the feature to set to.

        hOtherFeat:  handle to the feature from which geometry, and field
        values will be copied.

        bForgiving:  TRUE if the operation should continue despite lacking
        output fields matching some of the source fields.

        OGRERR_NONE if the operation succeeds, even if some values are not
        transferred, otherwise an error code. 
        """
        return _ogr.Feature_SetFrom(self, *args, **kwargs)

    def SetFromWithMap(self, *args):
        """
        SetFromWithMap(self, Feature other, int forgiving, int nList) -> OGRErr

        OGRErr
        OGR_F_SetFromWithMap(OGRFeatureH hFeat, OGRFeatureH hOtherFeat, int
        bForgiving, int *panMap)

        Set one feature from another.

        Overwrite the contents of this feature from the geometry and
        attributes of another. The hOtherFeature does not need to have the
        same OGRFeatureDefn. Field values are copied according to the provided
        indices map. Field types do not have to exactly match.
        OGR_F_SetField*() function conversion rules will be applied as needed.
        This is more efficient than OGR_F_SetFrom() in that this doesn't
        lookup the fields by their names. Particularly useful when the field
        names don't match.

        This function is the same as the C++ method OGRFeature::SetFrom().

        Parameters:
        -----------

        hFeat:  handle to the feature to set to.

        hOtherFeat:  handle to the feature from which geometry, and field
        values will be copied.

        panMap:  Array of the indices of the destination feature's fields
        stored at the corresponding index of the source feature's fields. A
        value of -1 should be used to ignore the source's field. The array
        should not be NULL and be as long as the number of fields in the
        source feature.

        bForgiving:  TRUE if the operation should continue despite lacking
        output fields matching some of the source fields.

        OGRERR_NONE if the operation succeeds, even if some values are not
        transferred, otherwise an error code. 
        """
        return _ogr.Feature_SetFromWithMap(self, *args)

    def GetStyleString(self, *args):
        """
        GetStyleString(self) -> char

        const char*
        OGR_F_GetStyleString(OGRFeatureH hFeat)

        Fetch style string for this feature.

        Set the OGR Feature Style Specification for details on the format of
        this string, and ogr_featurestyle.h for services available to parse
        it.

        This function is the same as the C++ method
        OGRFeature::GetStyleString().

        Parameters:
        -----------

        hFeat:  handle to the feature to get the style from.

        a reference to a representation in string format, or NULL if there
        isn't one. 
        """
        return _ogr.Feature_GetStyleString(self, *args)

    def SetStyleString(self, *args):
        """
        SetStyleString(self, char the_string)

        void
        OGR_F_SetStyleString(OGRFeatureH hFeat, const char *pszStyle)

        Set feature style string.

        This method operate exactly as OGR_F_SetStyleStringDirectly() except
        that it does not assume ownership of the passed string, but instead
        makes a copy of it.

        This function is the same as the C++ method
        OGRFeature::SetStyleString().

        Parameters:
        -----------

        hFeat:  handle to the feature to set style to.

        pszStyle:  the style string to apply to this feature, cannot be NULL.

        """
        return _ogr.Feature_SetStyleString(self, *args)

    def GetFieldType(self, *args):
        """
        GetFieldType(self, int id) -> OGRFieldType
        GetFieldType(self, char field_name) -> OGRFieldType
        """
        return _ogr.Feature_GetFieldType(self, *args)

    def Validate(self, *args):
        """
        Validate(self, int flags = OGR_F_VAL_ALL, int bEmitError = TRUE) -> int

        int OGR_F_Validate(OGRFeatureH
        hFeat, int nValidateFlags, int bEmitError)

        Validate that a feature meets constraints of its schema.

        The scope of test is specified with the nValidateFlags parameter.

        Regarding OGR_F_VAL_WIDTH, the test is done assuming the string width
        must be interpreted as the number of UTF-8 characters. Some drivers
        might interpret the width as the number of bytes instead. So this test
        is rather conservative (if it fails, then it will fail for all
        interpretations).

        This function is the same as the C++ method OGRFeature::Validate().

        Parameters:
        -----------

        hFeat:  handle to the feature to validate.

        nValidateFlags:  OGR_F_VAL_ALL or combination of OGR_F_VAL_NULL,
        OGR_F_VAL_GEOM_TYPE, OGR_F_VAL_WIDTH and
        OGR_F_VAL_ALLOW_NULL_WHEN_DEFAULT with '|' operator

        bEmitError:  TRUE if a CPLError() must be emitted when a check fails

        TRUE if all enabled validation tests pass.

        GDAL 2.0 
        """
        return _ogr.Feature_Validate(self, *args)

    def FillUnsetWithDefault(self, *args):
        """
        FillUnsetWithDefault(self, int bNotNullableOnly = True, char options = None)

        void
        OGR_F_FillUnsetWithDefault(OGRFeatureH hFeat, int bNotNullableOnly,
        char **papszOptions)

        Fill unset fields with default values that might be defined.

        This function is the same as the C++ method
        OGRFeature::FillUnsetWithDefault().

        Parameters:
        -----------

        hFeat:  handle to the feature.

        bNotNullableOnly:  if we should fill only unset fields with a not-null
        constraint.

        papszOptions:  unused currently. Must be set to NULL.

        GDAL 2.0 
        """
        return _ogr.Feature_FillUnsetWithDefault(self, *args)

    def GetNativeData(self, *args):
        """
        GetNativeData(self) -> char

        const char*
        OGR_F_GetNativeData(OGRFeatureH hFeat)

        Returns the native data for the feature.

        The native data is the representation in a "natural" form that comes
        from the driver that created this feature, or that is aimed at an
        output driver. The native data may be in different format, which is
        indicated by OGR_F_GetNativeMediaType().

        Note that most drivers do not support storing the native data in the
        feature object, and if they do, generally the NATIVE_DATA open option
        must be passed at dataset opening.

        The "native data" does not imply it is something more performant or
        powerful than what can be obtained with the rest of the API, but it
        may be useful in round-tripping scenarios where some characteristics
        of the underlying format are not captured otherwise by the OGR
        abstraction.

        This function is the same as the C++ method
        OGRFeature::GetNativeData().

        Parameters:
        -----------

        hFeat:  handle to the feature.

        a string with the native data, or NULL if there is none.

        GDAL 2.1

        See:
        https://trac.osgeo.org/gdal/wiki/rfc60_improved_roundtripping_in_ogr

        """
        return _ogr.Feature_GetNativeData(self, *args)

    def GetNativeMediaType(self, *args):
        """
        GetNativeMediaType(self) -> char

        const char*
        OGR_F_GetNativeMediaType(OGRFeatureH hFeat)

        Returns the native media type for the feature.

        The native media type is the identifier for the format of the native
        data. It follows the IANA RFC 2045
        (seehttps://en.wikipedia.org/wiki/Media_type), e.g.
        "application/vnd.geo+json" for JSon.

        This function is the same as the C function
        OGR_F_GetNativeMediaType().

        Parameters:
        -----------

        hFeat:  handle to the feature.

        a string with the native media type, or NULL if there is none.

        GDAL 2.1

        See:
        https://trac.osgeo.org/gdal/wiki/rfc60_improved_roundtripping_in_ogr

        """
        return _ogr.Feature_GetNativeMediaType(self, *args)

    def SetNativeData(self, *args):
        """
        SetNativeData(self, char nativeData)

        void
        OGR_F_SetNativeData(OGRFeatureH hFeat, const char *pszNativeData)

        Sets the native data for the feature.

        The native data is the representation in a "natural" form that comes
        from the driver that created this feature, or that is aimed at an
        output driver. The native data may be in different format, which is
        indicated by OGR_F_GetNativeMediaType().

        This function is the same as the C++ method
        OGRFeature::SetNativeData().

        Parameters:
        -----------

        hFeat:  handle to the feature.

        pszNativeData:  a string with the native data, or NULL if there is
        none.

        GDAL 2.1

        See:
        https://trac.osgeo.org/gdal/wiki/rfc60_improved_roundtripping_in_ogr

        """
        return _ogr.Feature_SetNativeData(self, *args)

    def SetNativeMediaType(self, *args):
        """
        SetNativeMediaType(self, char nativeMediaType)

        void
        OGR_F_SetNativeMediaType(OGRFeatureH hFeat, const char
        *pszNativeMediaType)

        Sets the native media type for the feature.

        The native media type is the identifier for the format of the native
        data. It follows the IANA RFC 2045
        (seehttps://en.wikipedia.org/wiki/Media_type), e.g.
        "application/vnd.geo+json" for JSon.

        This function is the same as the C++ method
        OGRFeature::SetNativeMediaType().

        Parameters:
        -----------

        hFeat:  handle to the feature.

        pszNativeMediaType:  a string with the native media type, or NULL if
        there is none.

        GDAL 2.1

        See:
        https://trac.osgeo.org/gdal/wiki/rfc60_improved_roundtripping_in_ogr

        """
        return _ogr.Feature_SetNativeMediaType(self, *args)

    def SetFieldString(self, *args):
        """
        SetFieldString(self, int id, char value)

        void
        OGR_F_SetFieldString(OGRFeatureH hFeat, int iField, const char
        *pszValue)

        Set field to string value.

        OFTInteger fields will be set based on an atoi() conversion of the
        string. OFTInteger64 fields will be set based on an CPLAtoGIntBig()
        conversion of the string. OFTReal fields will be set based on an
        CPLAtof() conversion of the string. Other field types may be
        unaffected.

        This function is the same as the C++ method OGRFeature::SetField().

        This method has only an effect on the in-memory feature object. If
        this object comes from a layer and the modifications must be
        serialized back to the datasource, OGR_L_SetFeature() must be used
        afterwards. Or if this is a new feature, OGR_L_CreateFeature() must be
        used afterwards.

        Parameters:
        -----------

        hFeat:  handle to the feature that owned the field.

        iField:  the field to fetch, from 0 to GetFieldCount()-1.

        pszValue:  the value to assign. 
        """
        return _ogr.Feature_SetFieldString(self, *args)

    def Reference(self):
      pass

    def Dereference(self):
      pass

    def Destroy(self):
      "Once called, self has effectively been destroyed.  Do not access. For backwards compatibility only"
      _ogr.delete_Feature( self )
      self.thisown = 0

    def __cmp__(self, other):
        """Compares a feature to another for equality"""
        return self.Equal(other)

    def __copy__(self):
        return self.Clone()

    # This makes it possible to fetch fields in the form "feature.area".
    # This has some risk of name collisions.
    def __getattr__(self, key):
        """Returns the values of fields by the given name"""
        if key == 'this':
            return self.__dict__[key]

        idx = self.GetFieldIndex(key)
        if idx < 0:
            idx = self.GetGeomFieldIndex(key)
            if idx < 0:
                raise AttributeError(key)
            else:
                return self.GetGeomFieldRef(idx)
        else:
            return self.GetField(idx)

    # This makes it possible to set fields in the form "feature.area".
    # This has some risk of name collisions.
    def __setattr__(self, key, value):
        """Set the values of fields by the given name"""
        if key == 'this' or key == 'thisown':
            self.__dict__[key] = value
        else:
            idx = self.GetFieldIndex(key)
            if idx != -1:
                self.SetField2(idx,value)
            else:
                idx = self.GetGeomFieldIndex(key)
                if idx != -1:
                    self.SetGeomField(idx, value)
                else:
                    self.__dict__[key] = value

    # This makes it possible to fetch fields in the form "feature['area']".
    def __getitem__(self, key):
        """Returns the values of fields by the given name / field_index"""
        if isinstance(key, str) or isinstance(key, type(u'')):
            fld_index = self.GetFieldIndex(key)
        else:
            fld_index = key
            if key == self.GetFieldCount():
                raise IndexError
        if fld_index < 0:
            if isinstance(key, str) or isinstance(key, type(u'')):
                fld_index = self.GetGeomFieldIndex(key)
            if fld_index < 0:
                raise ValueError("Illegal field requested in GetField()")
            else:
                return self.GetGeomFieldRef(fld_index)
        else:
            return self.GetField(fld_index)

    # This makes it possible to set fields in the form "feature['area'] = 123".
    def __setitem__(self, key, value):
        """Returns the value of a field by field name / index"""
        if isinstance(key, str) or isinstance(key, type(u'')):
            fld_index = self.GetFieldIndex(key)
        else:
            fld_index = key
            if key == self.GetFieldCount():
                raise IndexError
        if fld_index < 0:
            if isinstance(key, str) or isinstance(key, type(u'')):
                fld_index = self.GetGeomFieldIndex(key)
            if fld_index < 0:
                raise ValueError("Illegal field requested in SetField()")
            else:
                return self.SetGeomField( fld_index, value )
        else:
            return self.SetField2( fld_index, value )

    def GetField(self, fld_index):
        if isinstance(fld_index, str) or isinstance(fld_index, type(u'')):
            fld_index = self.GetFieldIndex(fld_index)
        if (fld_index < 0) or (fld_index > self.GetFieldCount()):
            raise ValueError("Illegal field requested in GetField()")
        if not (self.IsFieldSet(fld_index)) or self.IsFieldNull(fld_index):
            return None
        fld_type = self.GetFieldType(fld_index)
        if fld_type == OFTInteger:
            return self.GetFieldAsInteger(fld_index)
        if fld_type == OFTInteger64:
            return self.GetFieldAsInteger64(fld_index)
        if fld_type == OFTReal:
            return self.GetFieldAsDouble(fld_index)
        if fld_type == OFTStringList:
            return self.GetFieldAsStringList(fld_index)
        if fld_type == OFTIntegerList:
            return self.GetFieldAsIntegerList(fld_index)
        if fld_type == OFTInteger64List:
            return self.GetFieldAsInteger64List(fld_index)
        if fld_type == OFTRealList:
            return self.GetFieldAsDoubleList(fld_index)
        ## if fld_type == OFTDateTime or fld_type == OFTDate or fld_type == OFTTime:
        #     return self.GetFieldAsDate(fld_index)
        # default to returning as a string.  Should we add more types?
        try:
            return self.GetFieldAsString(fld_index)
        except:
            # For Python3 on non-UTF8 strings
            return self.GetFieldAsBinary(fld_index)

    # With several override, SWIG cannot dispatch automatically unicode strings
    # to the right implementation, so we have to do it at hand
    def SetField(self, *args):
        """
        SetField(self, int id, char value)
        SetField(self, char name, char value)
        SetField(self, int id, int value)
        SetField(self, char name, int value)
        SetField(self, int id, double value)
        SetField(self, char name, double value)
        SetField(self, int id, int year, int month, int day, int hour, int minute,
            int second, int tzflag)
        SetField(self, char name, int year, int month, int day, int hour,
            int minute, int second, int tzflag)
        """

        if len(args) == 2 and args[1] is None:
            return _ogr.Feature_SetFieldNull(self, args[0])

        if len(args) == 2 and (type(args[1]) == type(1) or type(args[1]) == type(12345678901234)):
            fld_index = args[0]
            if isinstance(fld_index, str) or isinstance(fld_index, type(u'')):
                fld_index = self.GetFieldIndex(fld_index)
            return _ogr.Feature_SetFieldInteger64(self, fld_index, args[1])


        if len(args) == 2 and str(type(args[1])) == "<type 'unicode'>":
            fld_index = args[0]
            if isinstance(fld_index, str) or isinstance(fld_index, type(u'')):
                fld_index = self.GetFieldIndex(fld_index)
            return _ogr.Feature_SetFieldString(self, fld_index, args[1])

        return _ogr.Feature_SetField(self, *args)

    def SetField2(self, fld_index, value):
        if isinstance(fld_index, str) or isinstance(fld_index, type(u'')):
            fld_index = self.GetFieldIndex(fld_index)
        if (fld_index < 0) or (fld_index > self.GetFieldCount()):
            raise ValueError("Illegal field requested in SetField2()")

        if value is None:
            self.SetFieldNull( fld_index )
            return

        if isinstance(value,list):
            if len(value) == 0:
                self.SetFieldNull( fld_index )
                return
            if isinstance(value[0],type(1)) or isinstance(value[0],type(12345678901234)):
                self.SetFieldInteger64List(fld_index,value)
                return
            elif isinstance(value[0],float):
                self.SetFieldDoubleList(fld_index,value)
                return
            elif isinstance(value[0],str):
                self.SetFieldStringList(fld_index,value)
                return
            else:
                raise TypeError( 'Unsupported type of list in SetField2(). Type of element is %s' % str(type(value[0])) )

        try:
            self.SetField( fld_index, value )
        except:
            self.SetField( fld_index, str(value) )
        return

    def keys(self):
        names = []
        for i in range(self.GetFieldCount()):
            fieldname = self.GetFieldDefnRef(i).GetName()
            names.append(fieldname)
        return names

    def items(self):
        keys = self.keys()
        output = {}
        for key in keys:
            output[key] = self.GetField(key)
        return output
    def geometry(self):
        return self.GetGeometryRef()

    def ExportToJson(self, as_object = False, options = None):
        """Exports a GeoJSON object which represents the Feature. The
           as_object parameter determines whether the returned value
           should be a Python object instead of a string. Defaults to False.
           The options parameter is passed to Geometry.ExportToJson()"""

        try:
            import simplejson
        except ImportError:
            try:
                import json as simplejson
            except ImportError:
                raise ImportError("Unable to import simplejson or json, needed for ExportToJson.")

        geom = self.GetGeometryRef()
        if geom is not None:
            if options is None:
                options = []
            geom_json_string = geom.ExportToJson(options = options)
            geom_json_object = simplejson.loads(geom_json_string)
        else:
            geom_json_object = None

        output = {'type':'Feature',
                   'geometry': geom_json_object,
                   'properties': {}
                  }

        fid = self.GetFID()
        if fid != NullFID:
            output['id'] = fid

        for key in self.keys():
            fld_defn = self.GetFieldDefnRef(self.GetFieldIndex(key))
            if fld_defn.GetType() == _ogr.OFTInteger and fld_defn.GetSubType() == _ogr.OFSTBoolean:
                if self.GetField(key):
                    output['properties'][key] = True
                else:
                    output['properties'][key] = False
            else:
                output['properties'][key] = self.GetField(key)

        if not as_object:
            output = simplejson.dumps(output)

        return output



Feature_swigregister = _ogr.Feature_swigregister
Feature_swigregister(Feature)

class FeatureDefn(object):
    """Proxy of C++ OGRFeatureDefnShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    __swig_destroy__ = _ogr.delete_FeatureDefn
    __del__ = lambda self : None;
    def __init__(self, *args, **kwargs): 
        """__init__(self, char name_null_ok = None) -> FeatureDefn"""
        this = _ogr.new_FeatureDefn(*args, **kwargs)
        try: self.this.append(this)
        except: self.this = this
    def GetName(self, *args):
        """
        GetName(self) -> char

        const char*
        OGR_FD_GetName(OGRFeatureDefnH hDefn)

        Get name of the OGRFeatureDefn passed as an argument.

        This function is the same as the C++ method OGRFeatureDefn::GetName().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the name from.

        the name. This name is internal and should not be modified, or freed.

        """
        return _ogr.FeatureDefn_GetName(self, *args)

    def GetFieldCount(self, *args):
        """
        GetFieldCount(self) -> int

        int
        OGR_FD_GetFieldCount(OGRFeatureDefnH hDefn)

        Fetch number of fields on the passed feature definition.

        This function is the same as the C++ OGRFeatureDefn::GetFieldCount().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the fields count from.

        count of fields. 
        """
        return _ogr.FeatureDefn_GetFieldCount(self, *args)

    def GetFieldDefn(self, *args):
        """
        GetFieldDefn(self, int i) -> FieldDefn

        OGRFieldDefnH
        OGR_FD_GetFieldDefn(OGRFeatureDefnH hDefn, int iField)

        Fetch field definition of the passed feature definition.

        This function is the same as the C++ method
        OGRFeatureDefn::GetFieldDefn().

        Starting with GDAL 1.7.0, this method will also issue an error if the
        index is not valid.

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the field definition
        from.

        iField:  the field to fetch, between 0 and GetFieldCount()-1.

        an handle to an internal field definition object or NULL if invalid
        index. This object should not be modified or freed by the application.

        """
        return _ogr.FeatureDefn_GetFieldDefn(self, *args)

    def GetFieldIndex(self, *args):
        """
        GetFieldIndex(self, char field_name) -> int

        int
        OGR_FD_GetFieldIndex(OGRFeatureDefnH hDefn, const char *pszFieldName)

        Find field by name.

        The field index of the first field matching the passed field name
        (case insensitively) is returned.

        This function is the same as the C++ method
        OGRFeatureDefn::GetFieldIndex.

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get field index from.

        pszFieldName:  the field name to search for.

        the field index, or -1 if no match found. 
        """
        return _ogr.FeatureDefn_GetFieldIndex(self, *args)

    def AddFieldDefn(self, *args):
        """
        AddFieldDefn(self, FieldDefn defn)

        void
        OGR_FD_AddFieldDefn(OGRFeatureDefnH hDefn, OGRFieldDefnH hNewField)

        Add a new field definition to the passed feature definition.

        To add a new field definition to a layer definition, do not use this
        function directly, but use OGR_L_CreateField() instead.

        This function should only be called while there are no OGRFeature
        objects in existence based on this OGRFeatureDefn. The OGRFieldDefn
        passed in is copied, and remains the responsibility of the caller.

        This function is the same as the C++ method
        OGRFeatureDefn::AddFieldDefn().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to add the field definition
        to.

        hNewField:  handle to the new field definition. 
        """
        return _ogr.FeatureDefn_AddFieldDefn(self, *args)

    def GetGeomFieldCount(self, *args):
        """
        GetGeomFieldCount(self) -> int

        int
        OGR_FD_GetGeomFieldCount(OGRFeatureDefnH hDefn)

        Fetch number of geometry fields on the passed feature definition.

        This function is the same as the C++
        OGRFeatureDefn::GetGeomFieldCount().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the fields count from.

        count of geometry fields.

        GDAL 1.11 
        """
        return _ogr.FeatureDefn_GetGeomFieldCount(self, *args)

    def GetGeomFieldDefn(self, *args):
        """
        GetGeomFieldDefn(self, int i) -> GeomFieldDefn

        OGRGeomFieldDefnH
        OGR_FD_GetGeomFieldDefn(OGRFeatureDefnH hDefn, int iGeomField)

        Fetch geometry field definition of the passed feature definition.

        This function is the same as the C++ method
        OGRFeatureDefn::GetGeomFieldDefn().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the field definition
        from.

        iGeomField:  the geometry field to fetch, between 0 and
        GetGeomFieldCount() - 1.

        an handle to an internal field definition object or NULL if invalid
        index. This object should not be modified or freed by the application.

        GDAL 1.11 
        """
        return _ogr.FeatureDefn_GetGeomFieldDefn(self, *args)

    def GetGeomFieldIndex(self, *args):
        """
        GetGeomFieldIndex(self, char field_name) -> int

        int
        OGR_FD_GetGeomFieldIndex(OGRFeatureDefnH hDefn, const char
        *pszGeomFieldName)

        Find geometry field by name.

        The geometry field index of the first geometry field matching the
        passed field name (case insensitively) is returned.

        This function is the same as the C++ method
        OGRFeatureDefn::GetGeomFieldIndex.

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get field index from.

        pszGeomFieldName:  the geometry field name to search for.

        the geometry field index, or -1 if no match found. 
        """
        return _ogr.FeatureDefn_GetGeomFieldIndex(self, *args)

    def AddGeomFieldDefn(self, *args):
        """
        AddGeomFieldDefn(self, GeomFieldDefn defn)

        void
        OGR_FD_AddGeomFieldDefn(OGRFeatureDefnH hDefn, OGRGeomFieldDefnH
        hNewGeomField)

        Add a new field definition to the passed feature definition.

        To add a new field definition to a layer definition, do not use this
        function directly, but use OGR_L_CreateGeomField() instead.

        This function should only be called while there are no OGRFeature
        objects in existence based on this OGRFeatureDefn. The
        OGRGeomFieldDefn passed in is copied, and remains the responsibility
        of the caller.

        This function is the same as the C++ method
        OGRFeatureDefn::AddGeomFieldDefn().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to add the geometry field
        definition to.

        hNewGeomField:  handle to the new field definition.

        GDAL 1.11 
        """
        return _ogr.FeatureDefn_AddGeomFieldDefn(self, *args)

    def DeleteGeomFieldDefn(self, *args):
        """
        DeleteGeomFieldDefn(self, int idx) -> OGRErr

        OGRErr
        OGR_FD_DeleteGeomFieldDefn(OGRFeatureDefnH hDefn, int iGeomField)

        Delete an existing geometry field definition.

        To delete an existing geometry field definition from a layer
        definition, do not use this function directly, but use
        OGR_L_DeleteGeomField() instead ( not implemented yet).

        This method should only be called while there are no OGRFeature
        objects in existence based on this OGRFeatureDefn.

        This method is the same as the C++ method
        OGRFeatureDefn::DeleteGeomFieldDefn().

        Parameters:
        -----------

        hDefn:  handle to the feature definition.

        iGeomField:  the index of the geometry field definition.

        OGRERR_NONE in case of success.

        GDAL 1.11 
        """
        return _ogr.FeatureDefn_DeleteGeomFieldDefn(self, *args)

    def GetGeomType(self, *args):
        """
        GetGeomType(self) -> OGRwkbGeometryType

        OGRwkbGeometryType
        OGR_FD_GetGeomType(OGRFeatureDefnH hDefn)

        Fetch the geometry base type of the passed feature definition.

        This function is the same as the C++ method
        OGRFeatureDefn::GetGeomType().

        Starting with GDAL 1.11, this method returns
        GetGeomFieldDefn(0)->GetType().

        Parameters:
        -----------

        hDefn:  handle to the feature definition to get the geometry type
        from.

        the base type for all geometry related to this definition. 
        """
        return _ogr.FeatureDefn_GetGeomType(self, *args)

    def SetGeomType(self, *args):
        """
        SetGeomType(self, OGRwkbGeometryType geom_type)

        void
        OGR_FD_SetGeomType(OGRFeatureDefnH hDefn, OGRwkbGeometryType eType)

        Assign the base geometry type for the passed layer (the same as the
        feature definition).

        All geometry objects using this type must be of the defined type or a
        derived type. The default upon creation is wkbUnknown which allows for
        any geometry type. The geometry type should generally not be changed
        after any OGRFeatures have been created against this definition.

        This function is the same as the C++ method
        OGRFeatureDefn::SetGeomType().

        Starting with GDAL 1.11, this method calls
        GetGeomFieldDefn(0)->SetType().

        Parameters:
        -----------

        hDefn:  handle to the layer or feature definition to set the geometry
        type to.

        eType:  the new type to assign. 
        """
        return _ogr.FeatureDefn_SetGeomType(self, *args)

    def GetReferenceCount(self, *args):
        """
        GetReferenceCount(self) -> int

        int
        OGR_FD_GetReferenceCount(OGRFeatureDefnH hDefn)

        Fetch current reference count.

        This function is the same as the C++ method
        OGRFeatureDefn::GetReferenceCount().

        Parameters:
        -----------

        hDefn:  handle to the feature definition on witch OGRFeature are based
        on.

        the current reference count. 
        """
        return _ogr.FeatureDefn_GetReferenceCount(self, *args)

    def IsGeometryIgnored(self, *args):
        """
        IsGeometryIgnored(self) -> int

        int
        OGR_FD_IsGeometryIgnored(OGRFeatureDefnH hDefn)

        Determine whether the geometry can be omitted when fetching features.

        This function is the same as the C++ method
        OGRFeatureDefn::IsGeometryIgnored().

        Starting with GDAL 1.11, this method returns
        GetGeomFieldDefn(0)->IsIgnored().

        Parameters:
        -----------

        hDefn:  handle to the feature definition on witch OGRFeature are based
        on.

        ignore state 
        """
        return _ogr.FeatureDefn_IsGeometryIgnored(self, *args)

    def SetGeometryIgnored(self, *args):
        """
        SetGeometryIgnored(self, int bIgnored)

        void
        OGR_FD_SetGeometryIgnored(OGRFeatureDefnH hDefn, int bIgnore)

        Set whether the geometry can be omitted when fetching features.

        This function is the same as the C++ method
        OGRFeatureDefn::SetGeometryIgnored().

        Starting with GDAL 1.11, this method calls
        GetGeomFieldDefn(0)->SetIgnored().

        Parameters:
        -----------

        hDefn:  handle to the feature definition on witch OGRFeature are based
        on.

        bIgnore:  ignore state 
        """
        return _ogr.FeatureDefn_SetGeometryIgnored(self, *args)

    def IsStyleIgnored(self, *args):
        """
        IsStyleIgnored(self) -> int

        int
        OGR_FD_IsStyleIgnored(OGRFeatureDefnH hDefn)

        Determine whether the style can be omitted when fetching features.

        This function is the same as the C++ method
        OGRFeatureDefn::IsStyleIgnored().

        Parameters:
        -----------

        hDefn:  handle to the feature definition on which OGRFeature are based
        on.

        ignore state 
        """
        return _ogr.FeatureDefn_IsStyleIgnored(self, *args)

    def SetStyleIgnored(self, *args):
        """
        SetStyleIgnored(self, int bIgnored)

        void
        OGR_FD_SetStyleIgnored(OGRFeatureDefnH hDefn, int bIgnore)

        Set whether the style can be omitted when fetching features.

        This function is the same as the C++ method
        OGRFeatureDefn::SetStyleIgnored().

        Parameters:
        -----------

        hDefn:  handle to the feature definition on witch OGRFeature are based
        on.

        bIgnore:  ignore state 
        """
        return _ogr.FeatureDefn_SetStyleIgnored(self, *args)

    def IsSame(self, *args):
        """
        IsSame(self, FeatureDefn other_defn) -> int

        int OGR_FD_IsSame(OGRFeatureDefnH
        hFDefn, OGRFeatureDefnH hOtherFDefn)

        Test if the feature definition is identical to the other one.

        Parameters:
        -----------

        hFDefn:  handle to the feature definition on witch OGRFeature are
        based on.

        hOtherFDefn:  handle to the other feature definition to compare to.

        TRUE if the feature definition is identical to the other one.

        OGR 1.11 
        """
        return _ogr.FeatureDefn_IsSame(self, *args)

    def Destroy(self):
      "Once called, self has effectively been destroyed.  Do not access. For backwards compatibility only"
      _ogr.delete_FeatureDefn( self )
      self.thisown = 0


FeatureDefn_swigregister = _ogr.FeatureDefn_swigregister
FeatureDefn_swigregister(FeatureDefn)

class FieldDefn(object):
    """Proxy of C++ OGRFieldDefnShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    __swig_destroy__ = _ogr.delete_FieldDefn
    __del__ = lambda self : None;
    def __init__(self, *args, **kwargs): 
        """__init__(self, char name_null_ok = "unnamed", OGRFieldType field_type = OFTString) -> FieldDefn"""
        this = _ogr.new_FieldDefn(*args, **kwargs)
        try: self.this.append(this)
        except: self.this = this
    def GetName(self, *args):
        """GetName(self) -> char"""
        return _ogr.FieldDefn_GetName(self, *args)

    def GetNameRef(self, *args):
        """
        GetNameRef(self) -> char

        const char*
        OGR_Fld_GetNameRef(OGRFieldDefnH hDefn)

        Fetch name of this field.

        This function is the same as the CPP method
        OGRFieldDefn::GetNameRef().

        Parameters:
        -----------

        hDefn:  handle to the field definition.

        the name of the field definition. 
        """
        return _ogr.FieldDefn_GetNameRef(self, *args)

    def SetName(self, *args):
        """
        SetName(self, char name)

        void OGR_Fld_SetName(OGRFieldDefnH
        hDefn, const char *pszName)

        Reset the name of this field.

        This function is the same as the CPP method OGRFieldDefn::SetName().

        Parameters:
        -----------

        hDefn:  handle to the field definition to apply the new name to.

        pszName:  the new name to apply. 
        """
        return _ogr.FieldDefn_SetName(self, *args)

    def GetType(self, *args):
        """
        GetType(self) -> OGRFieldType

        OGRFieldType
        OGR_Fld_GetType(OGRFieldDefnH hDefn)

        Fetch type of this field.

        This function is the same as the CPP method OGRFieldDefn::GetType().

        Parameters:
        -----------

        hDefn:  handle to the field definition to get type from.

        field type. 
        """
        return _ogr.FieldDefn_GetType(self, *args)

    def SetType(self, *args):
        """
        SetType(self, OGRFieldType type)

        void OGR_Fld_SetType(OGRFieldDefnH
        hDefn, OGRFieldType eType)

        Set the type of this field.

        This should never be done to an OGRFieldDefn that is already part of
        an OGRFeatureDefn.

        This function is the same as the CPP method OGRFieldDefn::SetType().

        Parameters:
        -----------

        hDefn:  handle to the field definition to set type to.

        eType:  the new field type. 
        """
        return _ogr.FieldDefn_SetType(self, *args)

    def GetSubType(self, *args):
        """
        GetSubType(self) -> OGRFieldSubType

        OGRFieldSubType
        OGR_Fld_GetSubType(OGRFieldDefnH hDefn)

        Fetch subtype of this field.

        This function is the same as the CPP method
        OGRFieldDefn::GetSubType().

        Parameters:
        -----------

        hDefn:  handle to the field definition to get subtype from.

        field subtype.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_GetSubType(self, *args)

    def SetSubType(self, *args):
        """
        SetSubType(self, OGRFieldSubType type)

        void
        OGR_Fld_SetSubType(OGRFieldDefnH hDefn, OGRFieldSubType eSubType)

        Set the subtype of this field.

        This should never be done to an OGRFieldDefn that is already part of
        an OGRFeatureDefn.

        This function is the same as the CPP method
        OGRFieldDefn::SetSubType().

        Parameters:
        -----------

        hDefn:  handle to the field definition to set type to.

        eSubType:  the new field subtype.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_SetSubType(self, *args)

    def GetJustify(self, *args):
        """
        GetJustify(self) -> OGRJustification

        OGRJustification
        OGR_Fld_GetJustify(OGRFieldDefnH hDefn)

        Get the justification for this field.

        This function is the same as the CPP method
        OGRFieldDefn::GetJustify().

        Note: no driver is know to use the concept of field justification.

        Parameters:
        -----------

        hDefn:  handle to the field definition to get justification from.

        the justification. 
        """
        return _ogr.FieldDefn_GetJustify(self, *args)

    def SetJustify(self, *args):
        """
        SetJustify(self, OGRJustification justify)

        void
        OGR_Fld_SetJustify(OGRFieldDefnH hDefn, OGRJustification eJustify)

        Set the justification for this field.

        Note: no driver is know to use the concept of field justification.

        This function is the same as the CPP method
        OGRFieldDefn::SetJustify().

        Parameters:
        -----------

        hDefn:  handle to the field definition to set justification to.

        eJustify:  the new justification. 
        """
        return _ogr.FieldDefn_SetJustify(self, *args)

    def GetWidth(self, *args):
        """
        GetWidth(self) -> int

        int OGR_Fld_GetWidth(OGRFieldDefnH
        hDefn)

        Get the formatting width for this field.

        This function is the same as the CPP method OGRFieldDefn::GetWidth().

        Parameters:
        -----------

        hDefn:  handle to the field definition to get width from.

        the width, zero means no specified width. 
        """
        return _ogr.FieldDefn_GetWidth(self, *args)

    def SetWidth(self, *args):
        """
        SetWidth(self, int width)

        void OGR_Fld_SetWidth(OGRFieldDefnH
        hDefn, int nNewWidth)

        Set the formatting width for this field in characters.

        This function is the same as the CPP method OGRFieldDefn::SetWidth().

        Parameters:
        -----------

        hDefn:  handle to the field definition to set width to.

        nNewWidth:  the new width. 
        """
        return _ogr.FieldDefn_SetWidth(self, *args)

    def GetPrecision(self, *args):
        """
        GetPrecision(self) -> int

        int
        OGR_Fld_GetPrecision(OGRFieldDefnH hDefn)

        Get the formatting precision for this field.

        This should normally be zero for fields of types other than OFTReal.

        This function is the same as the CPP method
        OGRFieldDefn::GetPrecision().

        Parameters:
        -----------

        hDefn:  handle to the field definition to get precision from.

        the precision. 
        """
        return _ogr.FieldDefn_GetPrecision(self, *args)

    def SetPrecision(self, *args):
        """
        SetPrecision(self, int precision)

        void
        OGR_Fld_SetPrecision(OGRFieldDefnH hDefn, int nPrecision)

        Set the formatting precision for this field in characters.

        This should normally be zero for fields of types other than OFTReal.

        This function is the same as the CPP method
        OGRFieldDefn::SetPrecision().

        Parameters:
        -----------

        hDefn:  handle to the field definition to set precision to.

        nPrecision:  the new precision. 
        """
        return _ogr.FieldDefn_SetPrecision(self, *args)

    def GetTypeName(self, *args):
        """GetTypeName(self) -> char"""
        return _ogr.FieldDefn_GetTypeName(self, *args)

    def GetFieldTypeName(self, *args):
        """GetFieldTypeName(self, OGRFieldType type) -> char"""
        return _ogr.FieldDefn_GetFieldTypeName(self, *args)

    def IsIgnored(self, *args):
        """
        IsIgnored(self) -> int

        int OGR_Fld_IsIgnored(OGRFieldDefnH
        hDefn)

        Return whether this field should be omitted when fetching features.

        This method is the same as the C++ method OGRFieldDefn::IsIgnored().

        Parameters:
        -----------

        hDefn:  handle to the field definition

        ignore state 
        """
        return _ogr.FieldDefn_IsIgnored(self, *args)

    def SetIgnored(self, *args):
        """
        SetIgnored(self, int bIgnored)

        void
        OGR_Fld_SetIgnored(OGRFieldDefnH hDefn, int ignore)

        Set whether this field should be omitted when fetching features.

        This method is the same as the C++ method OGRFieldDefn::SetIgnored().

        Parameters:
        -----------

        hDefn:  handle to the field definition

        ignore:  ignore state 
        """
        return _ogr.FieldDefn_SetIgnored(self, *args)

    def IsNullable(self, *args):
        """
        IsNullable(self) -> int

        int
        OGR_Fld_IsNullable(OGRFieldDefnH hDefn)

        Return whether this field can receive null values.

        By default, fields are nullable.

        Even if this method returns FALSE (i.e not-nullable field), it doesn't
        mean that OGRFeature::IsFieldSet() will necessary return TRUE, as
        fields can be temporary unset and null /not-null validation is usually
        done when OGRLayer::CreateFeature()/SetFeature() is called.

        This method is the same as the C++ method OGRFieldDefn::IsNullable().

        Parameters:
        -----------

        hDefn:  handle to the field definition

        TRUE if the field is authorized to be null.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_IsNullable(self, *args)

    def SetNullable(self, *args):
        """
        SetNullable(self, int bNullable)

        void
        OGR_Fld_SetNullable(OGRFieldDefnH hDefn, int bNullableIn)

        Set whether this field can receive null values.

        By default, fields are nullable, so this method is generally called
        with FALSE to set a not-null constraint.

        Drivers that support writing not-null constraint will advertize the
        GDAL_DCAP_NOTNULL_FIELDS driver metadata item.

        This method is the same as the C++ method OGRFieldDefn::SetNullable().

        Parameters:
        -----------

        hDefn:  handle to the field definition

        bNullableIn:  FALSE if the field must have a not-null constraint.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_SetNullable(self, *args)

    def GetDefault(self, *args):
        """
        GetDefault(self) -> char

        const char*
        OGR_Fld_GetDefault(OGRFieldDefnH hDefn)

        Get default field value.

        This function is the same as the C++ method
        OGRFieldDefn::GetDefault().

        Parameters:
        -----------

        hDefn:  handle to the field definition.

        default field value or NULL.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_GetDefault(self, *args)

    def SetDefault(self, *args):
        """
        SetDefault(self, char pszValue)

        void
        OGR_Fld_SetDefault(OGRFieldDefnH hDefn, const char *pszDefault)

        Set default field value.

        The default field value is taken into account by drivers (generally
        those with a SQL interface) that support it at field creation time.
        OGR will generally not automatically set the default field value to
        null fields by itself when calling OGRFeature::CreateFeature() /
        OGRFeature::SetFeature(), but will let the low-level layers to do the
        job. So retrieving the feature from the layer is recommended.

        The accepted values are NULL, a numeric value, a literal value
        enclosed between single quote characters (and inner single quote
        characters escaped by repetition of the single quote character),
        CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or a driver specific
        expression (that might be ignored by other drivers). For a datetime
        literal value, format should be 'YYYY/MM/DD HH:MM:SS[.sss]'
        (considered as UTC time).

        Drivers that support writing DEFAULT clauses will advertize the
        GDAL_DCAP_DEFAULT_FIELDS driver metadata item.

        This function is the same as the C++ method
        OGRFieldDefn::SetDefault().

        Parameters:
        -----------

        hDefn:  handle to the field definition.

        pszDefault:  new default field value or NULL pointer.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_SetDefault(self, *args)

    def IsDefaultDriverSpecific(self, *args):
        """
        IsDefaultDriverSpecific(self) -> int

        int
        OGR_Fld_IsDefaultDriverSpecific(OGRFieldDefnH hDefn)

        Returns whether the default value is driver specific.

        Driver specific default values are those that are not NULL, a numeric
        value, a literal value enclosed between single quote characters,
        CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or datetime literal
        value.

        This function is the same as the C++ method
        OGRFieldDefn::IsDefaultDriverSpecific().

        Parameters:
        -----------

        hDefn:  handle to the field definition

        TRUE if the default value is driver specific.

        GDAL 2.0 
        """
        return _ogr.FieldDefn_IsDefaultDriverSpecific(self, *args)

    width = property(GetWidth, SetWidth)
    type = property(GetType, SetType)
    precision = property(GetPrecision, SetPrecision)
    name = property(GetName, SetName)
    justify = property(GetJustify, SetJustify)

    def Destroy(self):
      "Once called, self has effectively been destroyed.  Do not access. For backwards compatibility only"
      _ogr.delete_FieldDefn( self )
      self.thisown = 0

FieldDefn_swigregister = _ogr.FieldDefn_swigregister
FieldDefn_swigregister(FieldDefn)

class GeomFieldDefn(object):
    """Proxy of C++ OGRGeomFieldDefnShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    __swig_destroy__ = _ogr.delete_GeomFieldDefn
    __del__ = lambda self : None;
    def __init__(self, *args, **kwargs): 
        """__init__(self, char name_null_ok = "", OGRwkbGeometryType field_type = wkbUnknown) -> GeomFieldDefn"""
        this = _ogr.new_GeomFieldDefn(*args, **kwargs)
        try: self.this.append(this)
        except: self.this = this
    def GetName(self, *args):
        """GetName(self) -> char"""
        return _ogr.GeomFieldDefn_GetName(self, *args)

    def GetNameRef(self, *args):
        """GetNameRef(self) -> char"""
        return _ogr.GeomFieldDefn_GetNameRef(self, *args)

    def SetName(self, *args):
        """SetName(self, char name)"""
        return _ogr.GeomFieldDefn_SetName(self, *args)

    def GetType(self, *args):
        """GetType(self) -> OGRwkbGeometryType"""
        return _ogr.GeomFieldDefn_GetType(self, *args)

    def SetType(self, *args):
        """SetType(self, OGRwkbGeometryType type)"""
        return _ogr.GeomFieldDefn_SetType(self, *args)

    def GetSpatialRef(self, *args):
        """GetSpatialRef(self) -> SpatialReference"""
        return _ogr.GeomFieldDefn_GetSpatialRef(self, *args)

    def SetSpatialRef(self, *args):
        """SetSpatialRef(self, SpatialReference srs)"""
        return _ogr.GeomFieldDefn_SetSpatialRef(self, *args)

    def IsIgnored(self, *args):
        """IsIgnored(self) -> int"""
        return _ogr.GeomFieldDefn_IsIgnored(self, *args)

    def SetIgnored(self, *args):
        """SetIgnored(self, int bIgnored)"""
        return _ogr.GeomFieldDefn_SetIgnored(self, *args)

    def IsNullable(self, *args):
        """IsNullable(self) -> int"""
        return _ogr.GeomFieldDefn_IsNullable(self, *args)

    def SetNullable(self, *args):
        """SetNullable(self, int bNullable)"""
        return _ogr.GeomFieldDefn_SetNullable(self, *args)

    type = property(GetType, SetType)
    name = property(GetName, SetName)
    srs = property(GetSpatialRef, SetSpatialRef)

GeomFieldDefn_swigregister = _ogr.GeomFieldDefn_swigregister
GeomFieldDefn_swigregister(GeomFieldDefn)


def CreateGeometryFromWkb(*args, **kwargs):
  """CreateGeometryFromWkb(int len, SpatialReference reference = None) -> Geometry"""
  return _ogr.CreateGeometryFromWkb(*args, **kwargs)

def CreateGeometryFromWkt(*args, **kwargs):
  """CreateGeometryFromWkt(char val, SpatialReference reference = None) -> Geometry"""
  return _ogr.CreateGeometryFromWkt(*args, **kwargs)

def CreateGeometryFromGML(*args):
  """CreateGeometryFromGML(char input_string) -> Geometry"""
  return _ogr.CreateGeometryFromGML(*args)

def CreateGeometryFromJson(*args):
  """CreateGeometryFromJson(char input_string) -> Geometry"""
  return _ogr.CreateGeometryFromJson(*args)

def BuildPolygonFromEdges(*args, **kwargs):
  """
    BuildPolygonFromEdges(Geometry hLineCollection, int bBestEffort = 0, int bAutoClose = 0, 
        double dfTolerance = 0) -> Geometry
    """
  return _ogr.BuildPolygonFromEdges(*args, **kwargs)

def ApproximateArcAngles(*args, **kwargs):
  """
    ApproximateArcAngles(double dfCenterX, double dfCenterY, double dfZ, double dfPrimaryRadius, 
        double dfSecondaryAxis, 
        double dfRotation, double dfStartAngle, double dfEndAngle, 
        double dfMaxAngleStepSizeDegrees) -> Geometry
    """
  return _ogr.ApproximateArcAngles(*args, **kwargs)

def ForceToPolygon(*args):
  """ForceToPolygon(Geometry geom_in) -> Geometry"""
  return _ogr.ForceToPolygon(*args)

def ForceToLineString(*args):
  """ForceToLineString(Geometry geom_in) -> Geometry"""
  return _ogr.ForceToLineString(*args)

def ForceToMultiPolygon(*args):
  """ForceToMultiPolygon(Geometry geom_in) -> Geometry"""
  return _ogr.ForceToMultiPolygon(*args)

def ForceToMultiPoint(*args):
  """ForceToMultiPoint(Geometry geom_in) -> Geometry"""
  return _ogr.ForceToMultiPoint(*args)

def ForceToMultiLineString(*args):
  """ForceToMultiLineString(Geometry geom_in) -> Geometry"""
  return _ogr.ForceToMultiLineString(*args)

def ForceTo(*args):
  """ForceTo(Geometry geom_in, OGRwkbGeometryType eTargetType, char options = None) -> Geometry"""
  return _ogr.ForceTo(*args)
class Geometry(object):
    """Proxy of C++ OGRGeometryShadow class"""
    thisown = _swig_property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc='The membership flag')
    __repr__ = _swig_repr
    __swig_destroy__ = _ogr.delete_Geometry
    __del__ = lambda self : None;
    def __init__(self, *args, **kwargs): 
        """
        __init__(self, OGRwkbGeometryType type = wkbUnknown, char wkt = None, 
            int wkb = 0, char gml = None) -> Geometry
        """
        this = _ogr.new_Geometry(*args, **kwargs)
        try: self.this.append(this)
        except: self.this = this
    def ExportToWkt(self, *args):
        """
        ExportToWkt(self) -> OGRErr

        OGRErr
        OGR_G_ExportToWkt(OGRGeometryH hGeom, char **ppszSrcText)

        Convert a geometry into well known text format.

        This function relates to the SFCOM IWks::ExportToWKT() method.

        For backward compatibility purposes, it exports the Old-style 99-402
        extended dimension (Z) WKB types for types Point, LineString, Polygon,
        MultiPoint, MultiLineString, MultiPolygon and GeometryCollection. For
        other geometry types, it is equivalent to OGR_G_ExportToIsoWkt().

        This function is the same as the CPP method
        OGRGeometry::exportToWkt().

        Parameters:
        -----------

        hGeom:  handle on the geometry to convert to a text format from.

        ppszSrcText:  a text buffer is allocated by the program, and assigned
        to the passed pointer. After use, *ppszDstText should be freed with
        CPLFree().

        Currently OGRERR_NONE is always returned. 
        """
        return _ogr.Geometry_ExportToWkt(self, *args)

    def ExportToIsoWkt(self, *args):
        """
        ExportToIsoWkt(self) -> OGRErr

        OGRErr
        OGR_G_ExportToIsoWkt(OGRGeometryH hGeom, char **ppszSrcText)

        Convert a geometry into SFSQL 1.2 / ISO SQL/MM Part 3 well known text
        format.

        This function relates to the SFCOM IWks::ExportToWKT() method. It
        exports the SFSQL 1.2 and ISO SQL/MM Part 3 extended dimension (Z&M)
        WKB types.

        This function is the same as the CPP method
        OGRGeometry::exportToWkt(wkbVariantIso).

        Parameters:
        -----------

        hGeom:  handle on the geometry to convert to a text format from.

        ppszSrcText:  a text buffer is allocated by the program, and assigned
        to the passed pointer. After use, *ppszDstText should be freed with
        CPLFree().

        Currently OGRERR_NONE is always returned.

        GDAL 2.0 
        """
        return _ogr.Geometry_ExportToIsoWkt(self, *args)

    def ExportToWkb(self, *args, **kwargs):
        """
        ExportToWkb(self, OGRwkbByteOrder byte_order = wkbXDR) -> OGRErr

        OGRErr
        OGR_G_ExportToWkb(OGRGeometryH hGeom, OGRwkbByteOrder eOrder, unsigned
        char *pabyDstBuffer)

        Convert a geometry well known binary format.

        This function relates to the SFCOM IWks::ExportToWKB() method.

        For backward compatibility purposes, it exports the Old-style 99-402
        extended dimension (Z) WKB types for types Point, LineString, Polygon,
        MultiPoint, MultiLineString, MultiPolygon and GeometryCollection. For
        other geometry types, it is equivalent to OGR_G_ExportToIsoWkb().

        This function is the same as the CPP method
        OGRGeometry::exportToWkb(OGRwkbByteOrder, unsigned char *,
        OGRwkbVariant) with eWkbVariant = wkbVariantOldOgc.

        Parameters:
        -----------

        hGeom:  handle on the geometry to convert to a well know binary data
        from.

        eOrder:  One of wkbXDR or wkbNDR indicating MSB or LSB byte order
        respectively.

        pabyDstBuffer:  a buffer into which the binary representation is
        written. This buffer must be at least OGR_G_WkbSize() byte in size.

        Currently OGRERR_NONE is always returned. 
        """
        return _ogr.Geometry_ExportToWkb(self, *args, **kwargs)

    def ExportToIsoWkb(self, *args, **kwargs):
        """
        ExportToIsoWkb(self, OGRwkbByteOrder byte_order = wkbXDR) -> OGRErr

        OGRErr
        OGR_G_ExportToIsoWkb(OGRGeometryH hGeom, OGRwkbByteOrder eOrder,
        unsigned char *pabyDstBuffer)

        Convert a geometry into SFSQL 1.2 / ISO SQL/MM Part 3 well known
        binary format.

        This function relates to the SFCOM IWks::ExportToWKB() method. It
        exports the SFSQL 1.2 and ISO SQL/MM Part 3 extended dimension (Z&M)
        WKB types.

        This function is the same as the CPP method
        OGRGeometry::exportToWkb(OGRwkbByteOrder, unsigned char *,
        OGRwkbVariant) with eWkbVariant = wkbVariantIso.

        Parameters:
        -----------

        hGeom:  handle on the geometry to convert to a well know binary data
        from.

        eOrder:  One of wkbXDR or wkbNDR indicating MSB or LSB byte order
        respectively.

        pabyDstBuffer:  a buffer into which the binary representation is
        written. This buffer must be at least OGR_G_WkbSize() byte in size.

        Currently OGRERR_NONE is always returned.

        GDAL 2.0 
        """
        return _ogr.Geometry_ExportToIsoWkb(self, *args, **kwargs)

    def ExportToGML(self, *args, **kwargs):
        """ExportToGML(self, char options = None) -> retStringAndCPLFree"""
        return _ogr.Geometry_ExportToGML(self, *args, **kwargs)

    def ExportToKML(self, *args):
        """ExportToKML(self, char altitude_mode = None) -> retStringAndCPLFree"""
        return _ogr.Geometry_ExportToKML(self, *args)

    def ExportToJson(self, *args, **kwargs):
        """ExportToJson(self, char options = None) -> retStringAndCPLFree"""
        return _ogr.Geometry_ExportToJson(self, *args, **kwargs)

    def AddPoint(self, *args, **kwargs):
        """AddPoint(self, double x, double y, double z = 0)"""
        return _ogr.Geometry_AddPoint(self, *args, **kwargs)

    def AddPointM(self, *args, **kwargs):
        """AddPointM(self, double x, double y, double m)"""
        return _ogr.Geometry_AddPointM(self, *args, **kwargs)

    def AddPointZM(self, *args, **kwargs):
        """AddPointZM(self, double x, double y, double z, double m)"""
        return _ogr.Geometry_AddPointZM(self, *args, **kwargs)

    def AddPoint_2D(self, *args):
        """AddPoint_2D(self, double x, double y)"""
        return _ogr.Geometry_AddPoint_2D(self, *args)

    def AddGeometryDirectly(self, *args):
        """AddGeometryDirectly(self, Geometry other_disown) -> OGRErr"""
        return _ogr.Geometry_AddGeometryDirectly(self, *args)

    def AddGeometry(self, *args):
        """AddGeometry(self, Geometry other) -> OGRErr"""
        return _ogr.Geometry_AddGeometry(self, *args)

    def RemoveGeometry(self, *args):
        """RemoveGeometry(self, int iSubGeom) -> OGRErr"""
        return _ogr.Geometry_RemoveGeometry(self, *args)

    def Clone(self, *args):
        """
        Clone(self) -> Geometry

        OGRGeometryH OGR_G_Clone(OGRGeometryH
        hGeom)

        Make a copy of this object.

        This function relates to the SFCOM IGeometry::clone() method.

        This function is the same as the CPP method OGRGeometry::clone().

        Parameters:
        -----------

        hGeom:  handle on the geometry to clone from.

        an handle on the copy of the geometry with the spatial reference
        system as the original. 
        """
        return _ogr.Geometry_Clone(self, *args)

    def GetGeometryType(self, *args):
        """
        GetGeometryType(self) -> OGRwkbGeometryType

        OGRwkbGeometryType
        OGR_G_GetGeometryType(OGRGeometryH hGeom)

        Fetch geometry type.

        Note that the geometry type may include the 2.5D flag. To get a 2D
        flattened version of the geometry type apply the wkbFlatten() macro to
        the return result.

        This function is the same as the CPP method
        OGRGeometry::getGeometryType().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get type from.

        the geometry type code. 
        """
        return _ogr.Geometry_GetGeometryType(self, *args)

    def GetGeometryName(self, *args):
        """
        GetGeometryName(self) -> char

        const char*
        OGR_G_GetGeometryName(OGRGeometryH hGeom)

        Fetch WKT name for geometry type.

        There is no SFCOM analog to this function.

        This function is the same as the CPP method
        OGRGeometry::getGeometryName().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get name from.

        name used for this geometry type in well known text format. 
        """
        return _ogr.Geometry_GetGeometryName(self, *args)

    def Length(self, *args):
        """Length(self) -> double"""
        return _ogr.Geometry_Length(self, *args)

    def Area(self, *args):
        """Area(self) -> double"""
        return _ogr.Geometry_Area(self, *args)

    def GetArea(self, *args):
        """GetArea(self) -> double"""
        return _ogr.Geometry_GetArea(self, *args)

    def GetPointCount(self, *args):
        """GetPointCount(self) -> int"""
        return _ogr.Geometry_GetPointCount(self, *args)

    def GetPoints(self, *args, **kwargs):
        """GetPoints(self, int nCoordDimension = 0)"""
        return _ogr.Geometry_GetPoints(self, *args, **kwargs)

    def GetX(self, *args, **kwargs):
        """GetX(self, int point = 0) -> double"""
        return _ogr.Geometry_GetX(self, *args, **kwargs)

    def GetY(self, *args, **kwargs):
        """GetY(self, int point = 0) -> double"""
        return _ogr.Geometry_GetY(self, *args, **kwargs)

    def GetZ(self, *args, **kwargs):
        """GetZ(self, int point = 0) -> double"""
        return _ogr.Geometry_GetZ(self, *args, **kwargs)

    def GetM(self, *args, **kwargs):
        """GetM(self, int point = 0) -> double"""
        return _ogr.Geometry_GetM(self, *args, **kwargs)

    def GetPoint(self, *args):
        """GetPoint(self, int iPoint = 0)"""
        return _ogr.Geometry_GetPoint(self, *args)

    def GetPointZM(self, *args):
        """GetPointZM(self, int iPoint = 0)"""
        return _ogr.Geometry_GetPointZM(self, *args)

    def GetPoint_2D(self, *args):
        """GetPoint_2D(self, int iPoint = 0)"""
        return _ogr.Geometry_GetPoint_2D(self, *args)

    def GetGeometryCount(self, *args):
        """GetGeometryCount(self) -> int"""
        return _ogr.Geometry_GetGeometryCount(self, *args)

    def SetPoint(self, *args, **kwargs):
        """SetPoint(self, int point, double x, double y, double z = 0)"""
        return _ogr.Geometry_SetPoint(self, *args, **kwargs)

    def SetPointM(self, *args, **kwargs):
        """SetPointM(self, int point, double x, double y, double m)"""
        return _ogr.Geometry_SetPointM(self, *args, **kwargs)

    def SetPointZM(self, *args, **kwargs):
        """SetPointZM(self, int point, double x, double y, double z, double m)"""
        return _ogr.Geometry_SetPointZM(self, *args, **kwargs)

    def SetPoint_2D(self, *args, **kwargs):
        """SetPoint_2D(self, int point, double x, double y)"""
        return _ogr.Geometry_SetPoint_2D(self, *args, **kwargs)

    def SwapXY(self, *args):
        """
        SwapXY(self)

        void OGR_G_SwapXY(OGRGeometryH hGeom)

        Swap x and y coordinates.

        Parameters:
        -----------

        hGeom:  geometry.

        OGR 2.3.0 
        """
        return _ogr.Geometry_SwapXY(self, *args)

    def GetGeometryRef(self, *args):
        """GetGeometryRef(self, int geom) -> Geometry"""
        return _ogr.Geometry_GetGeometryRef(self, *args)

    def Simplify(self, *args):
        """
        Simplify(self, double tolerance) -> Geometry

        OGRGeometryH
        OGR_G_Simplify(OGRGeometryH hThis, double dTolerance)

        Compute a simplified geometry.

        This function is the same as the C++ method OGRGeometry::Simplify().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        dTolerance:  the distance tolerance for the simplification.

        the simplified geometry or NULL if an error occurs.

        OGR 1.8.0 
        """
        return _ogr.Geometry_Simplify(self, *args)

    def SimplifyPreserveTopology(self, *args):
        """
        SimplifyPreserveTopology(self, double tolerance) -> Geometry

        OGRGeometryH
        OGR_G_SimplifyPreserveTopology(OGRGeometryH hThis, double dTolerance)

        Simplify the geometry while preserving topology.

        This function is the same as the C++ method
        OGRGeometry::SimplifyPreserveTopology().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        dTolerance:  the distance tolerance for the simplification.

        the simplified geometry or NULL if an error occurs.

        OGR 1.9.0 
        """
        return _ogr.Geometry_SimplifyPreserveTopology(self, *args)

    def DelaunayTriangulation(self, *args, **kwargs):
        """
        DelaunayTriangulation(self, double dfTolerance = 0.0, int bOnlyEdges = True) -> Geometry

        OGRGeometryH
        OGR_G_DelaunayTriangulation(OGRGeometryH hThis, double dfTolerance,
        int bOnlyEdges)

        Return a Delaunay triangulation of the vertices of the geometry.

        This function is the same as the C++ method
        OGRGeometry::DelaunayTriangulation().

        This function is built on the GEOS library, v3.4 or above. If OGR is
        built without the GEOS library, this function will always fail,
        issuing a CPLE_NotSupported error.

        Parameters:
        -----------

        hThis:  the geometry.

        dfTolerance:  optional snapping tolerance to use for improved
        robustness

        bOnlyEdges:  if TRUE, will return a MULTILINESTRING, otherwise it will
        return a GEOMETRYCOLLECTION containing triangular POLYGONs.

        the geometry resulting from the Delaunay triangulation or NULL if an
        error occurs.

        OGR 2.1 
        """
        return _ogr.Geometry_DelaunayTriangulation(self, *args, **kwargs)

    def Polygonize(self, *args):
        """
        Polygonize(self) -> Geometry

        OGRGeometryH
        OGR_G_Polygonize(OGRGeometryH hTarget)

        Polygonizes a set of sparse edges.

        A new geometry object is created and returned containing a collection
        of reassembled Polygons: NULL will be returned if the input collection
        doesn't corresponds to a MultiLinestring, or when reassembling Edges
        into Polygons is impossible due to topological inconsistencies.

        This function is the same as the C++ method OGRGeometry::Polygonize().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hTarget:  The Geometry to be polygonized.

        a handle to a newly allocated geometry now owned by the caller, or
        NULL on failure.

        OGR 1.9.0 
        """
        return _ogr.Geometry_Polygonize(self, *args)

    def Boundary(self, *args):
        """
        Boundary(self) -> Geometry

        OGRGeometryH
        OGR_G_Boundary(OGRGeometryH hTarget)

        Compute boundary.

        A new geometry object is created and returned containing the boundary
        of the geometry on which the method is invoked.

        This function is the same as the C++ method OGR_G_Boundary().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hTarget:  The Geometry to calculate the boundary of.

        a handle to a newly allocated geometry now owned by the caller, or
        NULL on failure.

        OGR 1.8.0 
        """
        return _ogr.Geometry_Boundary(self, *args)

    def GetBoundary(self, *args):
        """
        GetBoundary(self) -> Geometry

        OGRGeometryH
        OGR_G_GetBoundary(OGRGeometryH hTarget)

        Compute boundary (deprecated)

        Deprecated

        See:   OGR_G_Boundary() 
        """
        return _ogr.Geometry_GetBoundary(self, *args)

    def ConvexHull(self, *args):
        """
        ConvexHull(self) -> Geometry

        OGRGeometryH
        OGR_G_ConvexHull(OGRGeometryH hTarget)

        Compute convex hull.

        A new geometry object is created and returned containing the convex
        hull of the geometry on which the method is invoked.

        This function is the same as the C++ method OGRGeometry::ConvexHull().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hTarget:  The Geometry to calculate the convex hull of.

        a handle to a newly allocated geometry now owned by the caller, or
        NULL on failure. 
        """
        return _ogr.Geometry_ConvexHull(self, *args)

    def Buffer(self, *args, **kwargs):
        """
        Buffer(self, double distance, int quadsecs = 30) -> Geometry

        OGRGeometryH OGR_G_Buffer(OGRGeometryH
        hTarget, double dfDist, int nQuadSegs)

        Compute buffer of geometry.

        Builds a new geometry containing the buffer region around the geometry
        on which it is invoked. The buffer is a polygon containing the region
        within the buffer distance of the original geometry.

        Some buffer sections are properly described as curves, but are
        converted to approximate polygons. The nQuadSegs parameter can be used
        to control how many segments should be used to define a 90 degree
        curve - a quadrant of a circle. A value of 30 is a reasonable default.
        Large values result in large numbers of vertices in the resulting
        buffer geometry while small numbers reduce the accuracy of the result.

        This function is the same as the C++ method OGRGeometry::Buffer().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hTarget:  the geometry.

        dfDist:  the buffer distance to be applied. Should be expressed into
        the same unit as the coordinates of the geometry.

        nQuadSegs:  the number of segments used to approximate a 90 degree
        (quadrant) of curvature.

        the newly created geometry, or NULL if an error occurs. 
        """
        return _ogr.Geometry_Buffer(self, *args, **kwargs)

    def Intersection(self, *args):
        """
        Intersection(self, Geometry other) -> Geometry

        OGRGeometryH
        OGR_G_Intersection(OGRGeometryH hThis, OGRGeometryH hOther)

        Compute intersection.

        Generates a new geometry which is the region of intersection of the
        two geometries operated on. The OGR_G_Intersects() function can be
        used to test if two geometries intersect.

        This function is the same as the C++ method
        OGRGeometry::Intersection().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        hOther:  the other geometry.

        a new geometry representing the intersection or NULL if there is no
        intersection or an error occurs. 
        """
        return _ogr.Geometry_Intersection(self, *args)

    def Union(self, *args):
        """
        Union(self, Geometry other) -> Geometry

        OGRGeometryH OGR_G_Union(OGRGeometryH
        hThis, OGRGeometryH hOther)

        Compute union.

        Generates a new geometry which is the region of union of the two
        geometries operated on.

        This function is the same as the C++ method OGRGeometry::Union().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        hOther:  the other geometry.

        a new geometry representing the union or NULL if an error occurs. 
        """
        return _ogr.Geometry_Union(self, *args)

    def UnionCascaded(self, *args):
        """
        UnionCascaded(self) -> Geometry

        OGRGeometryH
        OGR_G_UnionCascaded(OGRGeometryH hThis)

        Compute union using cascading.

        This function is the same as the C++ method
        OGRGeometry::UnionCascaded().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        a new geometry representing the union or NULL if an error occurs. 
        """
        return _ogr.Geometry_UnionCascaded(self, *args)

    def Difference(self, *args):
        """
        Difference(self, Geometry other) -> Geometry

        OGRGeometryH
        OGR_G_Difference(OGRGeometryH hThis, OGRGeometryH hOther)

        Compute difference.

        Generates a new geometry which is the region of this geometry with the
        region of the other geometry removed.

        This function is the same as the C++ method OGRGeometry::Difference().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        hOther:  the other geometry.

        a new geometry representing the difference or NULL if the difference
        is empty or an error occurs. 
        """
        return _ogr.Geometry_Difference(self, *args)

    def SymDifference(self, *args):
        """
        SymDifference(self, Geometry other) -> Geometry

        OGRGeometryH
        OGR_G_SymDifference(OGRGeometryH hThis, OGRGeometryH hOther)

        Compute symmetric difference.

        Generates a new geometry which is the symmetric difference of this
        geometry and the other geometry.

        This function is the same as the C++ method
        OGRGeometry::SymmetricDifference().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry.

        hOther:  the other geometry.

        a new geometry representing the symmetric difference or NULL if the
        difference is empty or an error occurs.

        OGR 1.8.0 
        """
        return _ogr.Geometry_SymDifference(self, *args)

    def SymmetricDifference(self, *args):
        """
        SymmetricDifference(self, Geometry other) -> Geometry

        OGRGeometryH
        OGR_G_SymmetricDifference(OGRGeometryH hThis, OGRGeometryH hOther)

        Compute symmetric difference (deprecated)

        Deprecated

        See:  OGR_G_SymmetricDifference() 
        """
        return _ogr.Geometry_SymmetricDifference(self, *args)

    def Distance(self, *args):
        """
        Distance(self, Geometry other) -> double

        double OGR_G_Distance(OGRGeometryH
        hFirst, OGRGeometryH hOther)

        Compute distance between two geometries.

        Returns the shortest distance between the two geometries. The distance
        is expressed into the same unit as the coordinates of the geometries.

        This function is the same as the C++ method OGRGeometry::Distance().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hFirst:  the first geometry to compare against.

        hOther:  the other geometry to compare against.

        the distance between the geometries or -1 if an error occurs. 
        """
        return _ogr.Geometry_Distance(self, *args)

    def Distance3D(self, *args):
        """
        Distance3D(self, Geometry other) -> double

        double
        OGR_G_Distance3D(OGRGeometryH hFirst, OGRGeometryH hOther)

        Returns the 3D distance between two geometries.

        The distance is expressed into the same unit as the coordinates of the
        geometries.

        This method is built on the SFCGAL library, check it for the
        definition of the geometry operation. If OGR is built without the
        SFCGAL library, this method will always return -1.0

        This function is the same as the C++ method OGRGeometry::Distance3D().

        Parameters:
        -----------

        hFirst:  the first geometry to compare against.

        hOther:  the other geometry to compare against.

        distance between the two geometries

        GDAL 2.2

        the distance between the geometries or -1 if an error occurs. 
        """
        return _ogr.Geometry_Distance3D(self, *args)

    def Empty(self, *args):
        """
        Empty(self)

        void OGR_G_Empty(OGRGeometryH hGeom)

        Clear geometry information.

        This restores the geometry to it's initial state after construction,
        and before assignment of actual geometry.

        This function relates to the SFCOM IGeometry::Empty() method.

        This function is the same as the CPP method OGRGeometry::empty().

        Parameters:
        -----------

        hGeom:  handle on the geometry to empty. 
        """
        return _ogr.Geometry_Empty(self, *args)

    def IsEmpty(self, *args):
        """
        IsEmpty(self) -> bool

        int OGR_G_IsEmpty(OGRGeometryH hGeom)

        Test if the geometry is empty.

        This method is the same as the CPP method OGRGeometry::IsEmpty().

        Parameters:
        -----------

        hGeom:  The Geometry to test.

        TRUE if the geometry has no points, otherwise FALSE. 
        """
        return _ogr.Geometry_IsEmpty(self, *args)

    def IsValid(self, *args):
        """
        IsValid(self) -> bool

        int OGR_G_IsValid(OGRGeometryH hGeom)

        Test if the geometry is valid.

        This function is the same as the C++ method OGRGeometry::IsValid().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always return FALSE.

        Parameters:
        -----------

        hGeom:  The Geometry to test.

        TRUE if the geometry has no points, otherwise FALSE. 
        """
        return _ogr.Geometry_IsValid(self, *args)

    def IsSimple(self, *args):
        """
        IsSimple(self) -> bool

        int OGR_G_IsSimple(OGRGeometryH
        hGeom)

        Returns TRUE if the geometry is simple.

        Returns TRUE if the geometry has no anomalous geometric points, such
        as self intersection or self tangency. The description of each
        instantiable geometric class will include the specific conditions that
        cause an instance of that class to be classified as not simple.

        This function is the same as the C++ method OGRGeometry::IsSimple()
        method.

        If OGR is built without the GEOS library, this function will always
        return FALSE.

        Parameters:
        -----------

        hGeom:  The Geometry to test.

        TRUE if object is simple, otherwise FALSE. 
        """
        return _ogr.Geometry_IsSimple(self, *args)

    def IsRing(self, *args):
        """
        IsRing(self) -> bool

        int OGR_G_IsRing(OGRGeometryH hGeom)

        Test if the geometry is a ring.

        This function is the same as the C++ method OGRGeometry::IsRing().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always return FALSE.

        Parameters:
        -----------

        hGeom:  The Geometry to test.

        TRUE if the geometry has no points, otherwise FALSE. 
        """
        return _ogr.Geometry_IsRing(self, *args)

    def Intersects(self, *args):
        """
        Intersects(self, Geometry other) -> bool

        int OGR_G_Intersects(OGRGeometryH
        hGeom, OGRGeometryH hOtherGeom)

        Do these features intersect?

        Determines whether two geometries intersect. If GEOS is enabled, then
        this is done in rigorous fashion otherwise TRUE is returned if the
        envelopes (bounding boxes) of the two geometries overlap.

        This function is the same as the CPP method OGRGeometry::Intersects.

        Parameters:
        -----------

        hGeom:  handle on the first geometry.

        hOtherGeom:  handle on the other geometry to test against.

        TRUE if the geometries intersect, otherwise FALSE. 
        """
        return _ogr.Geometry_Intersects(self, *args)

    def Intersect(self, *args):
        """Intersect(self, Geometry other) -> bool"""
        return _ogr.Geometry_Intersect(self, *args)

    def Equals(self, *args):
        """
        Equals(self, Geometry other) -> bool

        int OGR_G_Equals(OGRGeometryH hGeom,
        OGRGeometryH hOther)

        Returns TRUE if two geometries are equivalent.

        This operation implements the SQL/MM ST_OrderingEquals() operation.

        The comparison is done in a structural way, that is to say that the
        geometry types must be identical, as well as the number and ordering
        of sub-geometries and vertices. Or equivalently, two geometries are
        considered equal by this method if their WKT/WKB representation is
        equal. Note: this must be distinguished for equality in a spatial way
        (which is the purpose of the ST_Equals() operation).

        This function is the same as the CPP method OGRGeometry::Equals()
        method.

        Parameters:
        -----------

        hGeom:  handle on the first geometry.

        hOther:  handle on the other geometry to test against.

        TRUE if equivalent or FALSE otherwise. 
        """
        return _ogr.Geometry_Equals(self, *args)

    def Equal(self, *args):
        """Equal(self, Geometry other) -> bool"""
        return _ogr.Geometry_Equal(self, *args)

    def Disjoint(self, *args):
        """
        Disjoint(self, Geometry other) -> bool

        int OGR_G_Disjoint(OGRGeometryH
        hThis, OGRGeometryH hOther)

        Test for disjointness.

        Tests if this geometry and the other geometry are disjoint.

        This function is the same as the C++ method OGRGeometry::Disjoint().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if they are disjoint, otherwise FALSE. 
        """
        return _ogr.Geometry_Disjoint(self, *args)

    def Touches(self, *args):
        """
        Touches(self, Geometry other) -> bool

        int OGR_G_Touches(OGRGeometryH hThis,
        OGRGeometryH hOther)

        Test for touching.

        Tests if this geometry and the other geometry are touching.

        This function is the same as the C++ method OGRGeometry::Touches().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if they are touching, otherwise FALSE. 
        """
        return _ogr.Geometry_Touches(self, *args)

    def Crosses(self, *args):
        """
        Crosses(self, Geometry other) -> bool

        int OGR_G_Crosses(OGRGeometryH hThis,
        OGRGeometryH hOther)

        Test for crossing.

        Tests if this geometry and the other geometry are crossing.

        This function is the same as the C++ method OGRGeometry::Crosses().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if they are crossing, otherwise FALSE. 
        """
        return _ogr.Geometry_Crosses(self, *args)

    def Within(self, *args):
        """
        Within(self, Geometry other) -> bool

        int OGR_G_Within(OGRGeometryH hThis,
        OGRGeometryH hOther)

        Test for containment.

        Tests if this geometry is within the other geometry.

        This function is the same as the C++ method OGRGeometry::Within().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if hThis is within hOther, otherwise FALSE. 
        """
        return _ogr.Geometry_Within(self, *args)

    def Contains(self, *args):
        """
        Contains(self, Geometry other) -> bool

        int OGR_G_Contains(OGRGeometryH
        hThis, OGRGeometryH hOther)

        Test for containment.

        Tests if this geometry contains the other geometry.

        This function is the same as the C++ method OGRGeometry::Contains().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if hThis contains hOther geometry, otherwise FALSE. 
        """
        return _ogr.Geometry_Contains(self, *args)

    def Overlaps(self, *args):
        """
        Overlaps(self, Geometry other) -> bool

        int OGR_G_Overlaps(OGRGeometryH
        hThis, OGRGeometryH hOther)

        Test for overlap.

        Tests if this geometry and the other geometry overlap, that is their
        intersection has a non-zero area.

        This function is the same as the C++ method OGRGeometry::Overlaps().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        Parameters:
        -----------

        hThis:  the geometry to compare.

        hOther:  the other geometry to compare.

        TRUE if they are overlapping, otherwise FALSE. 
        """
        return _ogr.Geometry_Overlaps(self, *args)

    def TransformTo(self, *args):
        """
        TransformTo(self, SpatialReference reference) -> OGRErr

        OGRErr
        OGR_G_TransformTo(OGRGeometryH hGeom, OGRSpatialReferenceH hSRS)

        Transform geometry to new spatial reference system.

        This function will transform the coordinates of a geometry from their
        current spatial reference system to a new target spatial reference
        system. Normally this means reprojecting the vectors, but it could
        include datum shifts, and changes of units.

        This function will only work if the geometry already has an assigned
        spatial reference system, and if it is transformable to the target
        coordinate system.

        Because this function requires internal creation and initialization of
        an OGRCoordinateTransformation object it is significantly more
        expensive to use this function to transform many geometries than it is
        to create the OGRCoordinateTransformation in advance, and call
        transform() with that transformation. This function exists primarily
        for convenience when only transforming a single geometry.

        This function is the same as the CPP method OGRGeometry::transformTo.

        Parameters:
        -----------

        hGeom:  handle on the geometry to apply the transform to.

        hSRS:  handle on the spatial reference system to apply.

        OGRERR_NONE on success, or an error code. 
        """
        return _ogr.Geometry_TransformTo(self, *args)

    def Transform(self, *args):
        """
        Transform(self, CoordinateTransformation trans) -> OGRErr

        OGRErr OGR_G_Transform(OGRGeometryH
        hGeom, OGRCoordinateTransformationH hTransform)

        Apply arbitrary coordinate transformation to geometry.

        This function will transform the coordinates of a geometry from their
        current spatial reference system to a new target spatial reference
        system. Normally this means reprojecting the vectors, but it could
        include datum shifts, and changes of units.

        Note that this function does not require that the geometry already
        have a spatial reference system. It will be assumed that they can be
        treated as having the source spatial reference system of the
        OGRCoordinateTransformation object, and the actual SRS of the geometry
        will be ignored. On successful completion the output
        OGRSpatialReference of the OGRCoordinateTransformation will be
        assigned to the geometry.

        This function is the same as the CPP method OGRGeometry::transform.

        Parameters:
        -----------

        hGeom:  handle on the geometry to apply the transform to.

        hTransform:  handle on the transformation to apply.

        OGRERR_NONE on success or an error code. 
        """
        return _ogr.Geometry_Transform(self, *args)

    def GetSpatialReference(self, *args):
        """
        GetSpatialReference(self) -> SpatialReference

        OGRSpatialReferenceH
        OGR_G_GetSpatialReference(OGRGeometryH hGeom)

        Returns spatial reference system for geometry.

        This function relates to the SFCOM IGeometry::get_SpatialReference()
        method.

        This function is the same as the CPP method
        OGRGeometry::getSpatialReference().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get spatial reference from.

        a reference to the spatial reference geometry. 
        """
        return _ogr.Geometry_GetSpatialReference(self, *args)

    def AssignSpatialReference(self, *args):
        """
        AssignSpatialReference(self, SpatialReference reference)

        void
        OGR_G_AssignSpatialReference(OGRGeometryH hGeom, OGRSpatialReferenceH
        hSRS)

        Assign spatial reference to this object.

        Any existing spatial reference is replaced, but under no circumstances
        does this result in the object being reprojected. It is just changing
        the interpretation of the existing geometry. Note that assigning a
        spatial reference increments the reference count on the
        OGRSpatialReference, but does not copy it.

        Starting with GDAL 2.3, this will also assign the spatial reference to
        potential sub-geometries of the geometry ( OGRGeometryCollection,
        OGRCurvePolygon/OGRPolygon, OGRCompoundCurve, OGRPolyhedralSurface and
        their derived classes).

        This is similar to the SFCOM IGeometry::put_SpatialReference() method.

        This function is the same as the CPP method
        OGRGeometry::assignSpatialReference.

        Parameters:
        -----------

        hGeom:  handle on the geometry to apply the new spatial reference
        system.

        hSRS:  handle on the new spatial reference system to apply. 
        """
        return _ogr.Geometry_AssignSpatialReference(self, *args)

    def CloseRings(self, *args):
        """
        CloseRings(self)

        void OGR_G_CloseRings(OGRGeometryH
        hGeom)

        Force rings to be closed.

        If this geometry, or any contained geometries has polygon rings that
        are not closed, they will be closed by adding the starting point at
        the end.

        Parameters:
        -----------

        hGeom:  handle to the geometry. 
        """
        return _ogr.Geometry_CloseRings(self, *args)

    def FlattenTo2D(self, *args):
        """
        FlattenTo2D(self)

        void
        OGR_G_FlattenTo2D(OGRGeometryH hGeom)

        Convert geometry to strictly 2D.

        In a sense this converts all Z coordinates to 0.0.

        This function is the same as the CPP method
        OGRGeometry::flattenTo2D().

        Parameters:
        -----------

        hGeom:  handle on the geometry to convert. 
        """
        return _ogr.Geometry_FlattenTo2D(self, *args)

    def Segmentize(self, *args):
        """
        Segmentize(self, double dfMaxLength)

        void OGR_G_Segmentize(OGRGeometryH
        hGeom, double dfMaxLength)

        Modify the geometry such it has no segment longer then the given
        distance.

        Interpolated points will have Z and M values (if needed) set to 0.
        Distance computation is performed in 2d only.

        This function is the same as the CPP method OGRGeometry::segmentize().

        Parameters:
        -----------

        hGeom:  handle on the geometry to segmentize

        dfMaxLength:  the maximum distance between 2 points after
        segmentization 
        """
        return _ogr.Geometry_Segmentize(self, *args)

    def GetEnvelope(self, *args):
        """
        GetEnvelope(self)

        void
        OGR_G_GetEnvelope(OGRGeometryH hGeom, OGREnvelope *psEnvelope)

        Computes and returns the bounding envelope for this geometry in the
        passed psEnvelope structure.

        This function is the same as the CPP method
        OGRGeometry::getEnvelope().

        Parameters:
        -----------

        hGeom:  handle of the geometry to get envelope from.

        psEnvelope:  the structure in which to place the results. 
        """
        return _ogr.Geometry_GetEnvelope(self, *args)

    def GetEnvelope3D(self, *args):
        """
        GetEnvelope3D(self)

        void
        OGR_G_GetEnvelope3D(OGRGeometryH hGeom, OGREnvelope3D *psEnvelope)

        Computes and returns the bounding envelope (3D) for this geometry in
        the passed psEnvelope structure.

        This function is the same as the CPP method
        OGRGeometry::getEnvelope().

        Parameters:
        -----------

        hGeom:  handle of the geometry to get envelope from.

        psEnvelope:  the structure in which to place the results.

        OGR 1.9.0 
        """
        return _ogr.Geometry_GetEnvelope3D(self, *args)

    def Centroid(self, *args):
        """
        Centroid(self) -> Geometry

        int OGR_G_Centroid(OGRGeometryH
        hGeom, OGRGeometryH hCentroidPoint)

        Compute the geometry centroid.

        The centroid location is applied to the passed in OGRPoint object. The
        centroid is not necessarily within the geometry.

        This method relates to the SFCOM ISurface::get_Centroid() method
        however the current implementation based on GEOS can operate on other
        geometry types such as multipoint, linestring, geometrycollection such
        as multipolygons. OGC SF SQL 1.1 defines the operation for surfaces
        (polygons). SQL/MM-Part 3 defines the operation for surfaces and
        multisurfaces (multipolygons).

        This function is the same as the C++ method OGRGeometry::Centroid().

        This function is built on the GEOS library, check it for the
        definition of the geometry operation. If OGR is built without the GEOS
        library, this function will always fail, issuing a CPLE_NotSupported
        error.

        OGRERR_NONE on success or OGRERR_FAILURE on error. 
        """
        return _ogr.Geometry_Centroid(self, *args)

    def PointOnSurface(self, *args):
        """
        PointOnSurface(self) -> Geometry

        OGRGeometryH
        OGR_G_PointOnSurface(OGRGeometryH hGeom)

        Returns a point guaranteed to lie on the surface.

        This method relates to the SFCOM ISurface::get_PointOnSurface() method
        however the current implementation based on GEOS can operate on other
        geometry types than the types that are supported by SQL/MM-Part 3 :
        surfaces (polygons) and multisurfaces (multipolygons).

        This method is built on the GEOS library, check it for the definition
        of the geometry operation. If OGR is built without the GEOS library,
        this method will always fail, issuing a CPLE_NotSupported error.

        Parameters:
        -----------

        hGeom:  the geometry to operate on.

        a point guaranteed to lie on the surface or NULL if an error occurred.

        OGR 1.10 
        """
        return _ogr.Geometry_PointOnSurface(self, *args)

    def WkbSize(self, *args):
        """
        WkbSize(self) -> int

        int OGR_G_WkbSize(OGRGeometryH hGeom)

        Returns size of related binary representation.

        This function returns the exact number of bytes required to hold the
        well known binary representation of this geometry object. Its
        computation may be slightly expensive for complex geometries.

        This function relates to the SFCOM IWks::WkbSize() method.

        This function is the same as the CPP method OGRGeometry::WkbSize().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get the binary size from.

        size of binary representation in bytes. 
        """
        return _ogr.Geometry_WkbSize(self, *args)

    def GetCoordinateDimension(self, *args):
        """
        GetCoordinateDimension(self) -> int

        int
        OGR_G_GetCoordinateDimension(OGRGeometryH hGeom)

        Get the dimension of the coordinates in this geometry.

        This function is the same as the CPP method
        OGRGeometry::getCoordinateDimension().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get the dimension of the coordinates
        from.

        Deprecated use OGR_G_CoordinateDimension(), OGR_G_Is3D(), or
        OGR_G_IsMeasured().

        this will return 2 or 3. 
        """
        return _ogr.Geometry_GetCoordinateDimension(self, *args)

    def CoordinateDimension(self, *args):
        """
        CoordinateDimension(self) -> int

        int
        OGR_G_CoordinateDimension(OGRGeometryH hGeom)

        Get the dimension of the coordinates in this geometry.

        This function is the same as the CPP method
        OGRGeometry::CoordinateDimension().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get the dimension of the coordinates
        from.

        this will return 2 for XY, 3 for XYZ and XYM, and 4 for XYZM data.

        GDAL 2.1 
        """
        return _ogr.Geometry_CoordinateDimension(self, *args)

    def Is3D(self, *args):
        """
        Is3D(self) -> int

        int OGR_G_Is3D(OGRGeometryH hGeom)

        See whether this geometry has Z coordinates.

        This function is the same as the CPP method OGRGeometry::Is3D().

        Parameters:
        -----------

        hGeom:  handle on the geometry to check whether it has Z coordinates.

        TRUE if the geometry has Z coordinates.

        GDAL 2.1 
        """
        return _ogr.Geometry_Is3D(self, *args)

    def IsMeasured(self, *args):
        """
        IsMeasured(self) -> int

        int OGR_G_IsMeasured(OGRGeometryH
        hGeom)

        See whether this geometry is measured.

        This function is the same as the CPP method OGRGeometry::IsMeasured().

        Parameters:
        -----------

        hGeom:  handle on the geometry to check whether it is measured.

        TRUE if the geometry has M coordinates.

        GDAL 2.1 
        """
        return _ogr.Geometry_IsMeasured(self, *args)

    def SetCoordinateDimension(self, *args):
        """
        SetCoordinateDimension(self, int dimension)

        void
        OGR_G_SetCoordinateDimension(OGRGeometryH hGeom, int nNewDimension)

        Set the coordinate dimension.

        This method sets the explicit coordinate dimension. Setting the
        coordinate dimension of a geometry to 2 should zero out any existing Z
        values. Setting the dimension of a geometry collection, a compound
        curve, a polygon, etc. will affect the children geometries. This will
        also remove the M dimension if present before this call.

        Deprecated use OGR_G_Set3D() or OGR_G_SetMeasured().

        Parameters:
        -----------

        hGeom:  handle on the geometry to set the dimension of the
        coordinates.

        nNewDimension:  New coordinate dimension value, either 2 or 3. 
        """
        return _ogr.Geometry_SetCoordinateDimension(self, *args)

    def Set3D(self, *args):
        """
        Set3D(self, int b3D)

        void OGR_G_Set3D(OGRGeometryH hGeom,
        int bIs3D)

        Add or remove the Z coordinate dimension.

        This method adds or removes the explicit Z coordinate dimension.
        Removing the Z coordinate dimension of a geometry will remove any
        existing Z values. Adding the Z dimension to a geometry collection, a
        compound curve, a polygon, etc. will affect the children geometries.

        Parameters:
        -----------

        hGeom:  handle on the geometry to set or unset the Z dimension.

        bIs3D:  Should the geometry have a Z dimension, either TRUE or FALSE.

        GDAL 2.1 
        """
        return _ogr.Geometry_Set3D(self, *args)

    def SetMeasured(self, *args):
        """
        SetMeasured(self, int bMeasured)

        void
        OGR_G_SetMeasured(OGRGeometryH hGeom, int bIsMeasured)

        Add or remove the M coordinate dimension.

        This method adds or removes the explicit M coordinate dimension.
        Removing the M coordinate dimension of a geometry will remove any
        existing M values. Adding the M dimension to a geometry collection, a
        compound curve, a polygon, etc. will affect the children geometries.

        Parameters:
        -----------

        hGeom:  handle on the geometry to set or unset the M dimension.

        bIsMeasured:  Should the geometry have a M dimension, either TRUE or
        FALSE.

        GDAL 2.1 
        """
        return _ogr.Geometry_SetMeasured(self, *args)

    def GetDimension(self, *args):
        """
        GetDimension(self) -> int

        int
        OGR_G_GetDimension(OGRGeometryH hGeom)

        Get the dimension of this geometry.

        This function corresponds to the SFCOM IGeometry::GetDimension()
        method. It indicates the dimension of the geometry, but does not
        indicate the dimension of the underlying space (as indicated by
        OGR_G_GetCoordinateDimension() function).

        This function is the same as the CPP method
        OGRGeometry::getDimension().

        Parameters:
        -----------

        hGeom:  handle on the geometry to get the dimension from.

        0 for points, 1 for lines and 2 for surfaces. 
        """
        return _ogr.Geometry_GetDimension(self, *args)

    def HasCurveGeometry(self, *args):
        """HasCurveGeometry(self, int bLookForCircular = True) -> int"""
        return _ogr.Geometry_HasCurveGeometry(self, *args)

    def GetLinearGeometry(self, *args, **kwargs):
        """GetLinearGeometry(self, double dfMaxAngleStepSizeDegrees = 0.0, char options = None) -> Geometry"""
        return _ogr.Geometry_GetLinearGeometry(self, *args, **kwargs)

    def GetCurveGeometry(self, *args, **kwargs):
        """GetCurveGeometry(self, char options = None) -> Geometry"""
        return _ogr.Geometry_GetCurveGeometry(self, *args, **kwargs)

    def Value(self, *args):
        """Value(self, double dfDistance) -> Geometry"""
        return _ogr.Geometry_Value(self, *args)

    def Destroy(self):
      self.__swig_destroy__(self)
      self.__del__()
      self.thisown = 0

    def __str__(self):
      return self.ExportToWkt()


    def __reduce__(self):
      return (self.__class__, (), self.ExportToWkb())

    def __setstate__(self, state):
        result = CreateGeometryFromWkb(state)
        self.this = result.this

    def __iter__(self):
        self.iter_subgeom = 0
        return self

    def next(self):
        if self.iter_subgeom < self.GetGeometryCount():
            subgeom = self.GetGeometryRef(self.iter_subgeom)
            self.iter_subgeom += 1
            return subgeom
        else:
            raise StopIteration

Geometry_swigregister = _ogr.Geometry_swigregister
Geometry_swigregister(Geometry)


def GetDriverCount(*args):
  """GetDriverCount() -> int"""
  return _ogr.GetDriverCount(*args)

def GetOpenDSCount(*args):
  """GetOpenDSCount() -> int"""
  return _ogr.GetOpenDSCount(*args)

def SetGenerate_DB2_V72_BYTE_ORDER(*args):
  """SetGenerate_DB2_V72_BYTE_ORDER(int bGenerate_DB2_V72_BYTE_ORDER) -> OGRErr"""
  return _ogr.SetGenerate_DB2_V72_BYTE_ORDER(*args)

def RegisterAll(*args):
  """RegisterAll()"""
  return _ogr.RegisterAll(*args)

def GeometryTypeToName(*args):
  """GeometryTypeToName(OGRwkbGeometryType eType) -> char"""
  return _ogr.GeometryTypeToName(*args)

def GetFieldTypeName(*args):
  """GetFieldTypeName(OGRFieldType type) -> char"""
  return _ogr.GetFieldTypeName(*args)

def GetFieldSubTypeName(*args):
  """GetFieldSubTypeName(OGRFieldSubType type) -> char"""
  return _ogr.GetFieldSubTypeName(*args)

def GT_Flatten(*args):
  """GT_Flatten(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_Flatten(*args)

def GT_SetZ(*args):
  """GT_SetZ(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_SetZ(*args)

def GT_SetM(*args):
  """GT_SetM(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_SetM(*args)

def GT_SetModifier(*args):
  """GT_SetModifier(OGRwkbGeometryType eType, int bSetZ, int bSetM = True) -> OGRwkbGeometryType"""
  return _ogr.GT_SetModifier(*args)

def GT_HasZ(*args):
  """GT_HasZ(OGRwkbGeometryType eType) -> int"""
  return _ogr.GT_HasZ(*args)

def GT_HasM(*args):
  """GT_HasM(OGRwkbGeometryType eType) -> int"""
  return _ogr.GT_HasM(*args)

def GT_IsSubClassOf(*args):
  """GT_IsSubClassOf(OGRwkbGeometryType eType, OGRwkbGeometryType eSuperType) -> int"""
  return _ogr.GT_IsSubClassOf(*args)

def GT_IsCurve(*args):
  """GT_IsCurve(OGRwkbGeometryType arg0) -> int"""
  return _ogr.GT_IsCurve(*args)

def GT_IsSurface(*args):
  """GT_IsSurface(OGRwkbGeometryType arg0) -> int"""
  return _ogr.GT_IsSurface(*args)

def GT_IsNonLinear(*args):
  """GT_IsNonLinear(OGRwkbGeometryType arg0) -> int"""
  return _ogr.GT_IsNonLinear(*args)

def GT_GetCollection(*args):
  """GT_GetCollection(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_GetCollection(*args)

def GT_GetCurve(*args):
  """GT_GetCurve(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_GetCurve(*args)

def GT_GetLinear(*args):
  """GT_GetLinear(OGRwkbGeometryType eType) -> OGRwkbGeometryType"""
  return _ogr.GT_GetLinear(*args)

def SetNonLinearGeometriesEnabledFlag(*args):
  """SetNonLinearGeometriesEnabledFlag(int bFlag)"""
  return _ogr.SetNonLinearGeometriesEnabledFlag(*args)

def GetNonLinearGeometriesEnabledFlag(*args):
  """GetNonLinearGeometriesEnabledFlag() -> int"""
  return _ogr.GetNonLinearGeometriesEnabledFlag(*args)

def GetOpenDS(*args):
  """GetOpenDS(int ds_number) -> DataSource"""
  return _ogr.GetOpenDS(*args)

def Open(*args, **kwargs):
  """Open(char utf8_path, int update = 0) -> DataSource"""
  return _ogr.Open(*args, **kwargs)

def OpenShared(*args, **kwargs):
  """OpenShared(char utf8_path, int update = 0) -> DataSource"""
  return _ogr.OpenShared(*args, **kwargs)

def GetDriverByName(*args):
  """GetDriverByName(char name) -> Driver"""
  return _ogr.GetDriverByName(*args)

def GetDriver(*args):
  """GetDriver(int driver_number) -> Driver"""
  return _ogr.GetDriver(*args)

def GeneralCmdLineProcessor(*args):
  """GeneralCmdLineProcessor(char papszArgv, int nOptions = 0) -> char"""
  return _ogr.GeneralCmdLineProcessor(*args)

def TermProgress_nocb(*args, **kwargs):
  """TermProgress_nocb(double dfProgress, char pszMessage = None, void pData = None) -> int"""
  return _ogr.TermProgress_nocb(*args, **kwargs)
TermProgress = _ogr.TermProgress


