def srs_double(f):
"""
Creates a function prototype for the OSR routines that take
the OSRSpatialReference object and
"""
return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)
def units_func(f):
"""
Creates a ctypes function prototype for OSR units functions, e.g.,
OSRGetAngularUnits, OSRGetLinearUnits.
"""
return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)
# Creation & destruction.
clone_srs = srs_output(std_call('OSRClone'), [c_void_p])
new_srs = srs_output(std_call('OSRNewSpatialReference'), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(std_call('OSRDestroySpatialReference'), [c_void_p], errcheck=False)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])
# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)
# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])
from_epsg = void_output(std_call('OSRImportFromEPSG'), [c_void_p, c_int])
from_xml = void_output(lgdal.OSRImportFromXML, [c_void_p, c_char_p])
# Geometry modification routines. add_geom = void_output(lgdal.OGR_G_AddGeometry, [c_void_p, c_void_p]) import_wkt = void_output(lgdal.OGR_G_ImportFromWkt, [c_void_p, POINTER(c_char_p)]) # Destroys a geometry destroy_geom = void_output(lgdal.OGR_G_DestroyGeometry, [c_void_p], errcheck=False) # Geometry export routines. to_wkb = void_output(lgdal.OGR_G_ExportToWkb, None, errcheck=True) # special handling for WKB. to_wkt = string_output(lgdal.OGR_G_ExportToWkt, [c_void_p, POINTER(c_char_p)]) to_gml = string_output(lgdal.OGR_G_ExportToGML, [c_void_p], str_result=True) get_wkbsize = int_output(lgdal.OGR_G_WkbSize, [c_void_p]) # Geometry spatial-reference related routines. assign_srs = void_output(lgdal.OGR_G_AssignSpatialReference, [c_void_p, c_void_p], errcheck=False) get_geom_srs = srs_output(lgdal.OGR_G_GetSpatialReference, [c_void_p]) # Geometry properties get_area = double_output(lgdal.OGR_G_GetArea, [c_void_p]) get_centroid = void_output(lgdal.OGR_G_Centroid, [c_void_p, c_void_p]) get_dims = int_output(lgdal.OGR_G_GetDimension, [c_void_p]) get_coord_dim = int_output(lgdal.OGR_G_GetCoordinateDimension, [c_void_p]) set_coord_dim = void_output(lgdal.OGR_G_SetCoordinateDimension, [c_void_p, c_int], errcheck=False) get_geom_count = int_output(lgdal.OGR_G_GetGeometryCount, [c_void_p]) get_geom_name = const_string_output(lgdal.OGR_G_GetGeometryName, [c_void_p]) get_geom_type = int_output(lgdal.OGR_G_GetGeometryType, [c_void_p]) get_point_count = int_output(lgdal.OGR_G_GetPointCount, [c_void_p]) get_point = void_output(lgdal.OGR_G_GetPoint, [c_void_p, c_int, POINTER(c_double), POINTER(c_double), POINTER(c_double)], errcheck=False) geom_close_rings = void_output(lgdal.OGR_G_CloseRings, [c_void_p], errcheck=False)
### DataSource ### open_ds = voidptr_output(lgdal.OGROpen, [c_char_p, c_int, POINTER(c_void_p)]) destroy_ds = void_output(lgdal.OGR_DS_Destroy, [c_void_p], errcheck=False) release_ds = void_output(lgdal.OGRReleaseDataSource, [c_void_p]) get_ds_name = const_string_output(lgdal.OGR_DS_GetName, [c_void_p]) get_layer = voidptr_output(lgdal.OGR_DS_GetLayer, [c_void_p, c_int]) get_layer_by_name = voidptr_output(lgdal.OGR_DS_GetLayerByName, [c_void_p, c_char_p]) get_layer_count = int_output(lgdal.OGR_DS_GetLayerCount, [c_void_p]) ### Layer Routines ### get_extent = void_output(lgdal.OGR_L_GetExtent, [c_void_p, POINTER(OGREnvelope), c_int]) get_feature = voidptr_output(lgdal.OGR_L_GetFeature, [c_void_p, c_long]) get_feature_count = int_output(lgdal.OGR_L_GetFeatureCount, [c_void_p, c_int]) get_layer_defn = voidptr_output(lgdal.OGR_L_GetLayerDefn, [c_void_p]) get_layer_srs = srs_output(lgdal.OGR_L_GetSpatialRef, [c_void_p]) get_next_feature = voidptr_output(lgdal.OGR_L_GetNextFeature, [c_void_p]) reset_reading = void_output(lgdal.OGR_L_ResetReading, [c_void_p], errcheck=False) test_capability = int_output(lgdal.OGR_L_TestCapability, [c_void_p, c_char_p]) get_spatial_filter = geom_output(lgdal.OGR_L_GetSpatialFilter, [c_void_p]) set_spatial_filter = void_output(lgdal.OGR_L_SetSpatialFilter, [c_void_p, c_void_p], errcheck=False) set_spatial_filter_rect = void_output(lgdal.OGR_L_SetSpatialFilterRect, [c_void_p, c_double, c_double, c_double, c_double], errcheck=False) ### Feature Definition Routines ### get_fd_geom_type = int_output(lgdal.OGR_FD_GetGeomType, [c_void_p]) get_fd_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p]) get_feat_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p]) get_field_count = int_output(lgdal.OGR_FD_GetFieldCount, [c_void_p]) get_field_defn = voidptr_output(lgdal.OGR_FD_GetFieldDefn, [c_void_p, c_int]) ### Feature Routines ###
