def CreateGeometryFromGML(string):
_obj = _gdal.OGR_G_CreateFromGML(string)
if _obj is not None and _obj != 'NULL':
result = Geometry(obj=_obj)
result.thisown = 1
return result
elif len(_gdal.CPLGetLastErrorMsg()) == 0:
raise ValueError, 'Failed to parse GML in ogr.CreateGeometryFromGML()'
else:
raise ValueError, _gdal.CPLGetLastErrorMsg()
def CreateGeometryFromWkt(string, srs=None):
if srs is not None:
srs_o = srs._o
else:
srs_o = ''
_obj = _gdal.OGR_G_CreateFromWkt(string, srs_o)
if _obj is not None and _obj != 'NULL':
result = Geometry(obj=_obj)
result.thisown = 1
return result
elif len(_gdal.CPLGetLastErrorMsg()) == 0:
raise ValueError, 'Failed to parse WKT in ogr.CreateGeometryFromWkt()'
else:
raise ValueError, _gdal.CPLGetLastErrorMsg()
def CopyDataSource(self, src_ds, filename, options=[]):
md_c = _gdal.ListToStringList(options)
ds_o = _gdal.OGR_Dr_CopyDataSource(self._o, src_ds._o, filename, md_c)
_gdal.CSLDestroy(md_c)
if ds_o is None or ds_o == 'NULL':
raise OGRError, _gdal.CPLGetLastErrorMsg()
else:
return DataSource(ds_o)
def Centroid(self, pnt_geom=None):
if pnt_geom is None:
pnt_geom = Geometry(type=wkbPoint)
err_code = _gdal.OGR_G_Centroid(self._o, pnt_geom._o)
if err_code != 0:
raise OGRError, 'Error in Centroid operation. ' + _gdal.CPLGetLastErrorMsg(
)
return pnt_geom
def AutoCreateWarpedVRT(src_ds,
src_wkt=None,
dst_wkt=None,
eResampleAlg=GRA_NearestNeighbour,
maxerror=0.0):
src_wkt = ToNULLableString(src_wkt)
dst_wkt = ToNULLableString(dst_wkt)
new_ds = _gdal.GDALAutoCreateWarpedVRT(src_ds._o, src_wkt, dst_wkt,
eResampleAlg, maxerror, 'NULL')
FreeNULLableString(src_wkt)
FreeNULLableString(dst_wkt)
if new_ds is not None:
_gdal.GDALDereferenceDataset(new_ds)
return Dataset(_obj=new_ds)
else:
raise ValueError, _gdal.CPLGetLastErrorMsg()
def GetLastErrorMsg():
return _gdal.CPLGetLastErrorMsg()