def __init__(self, geo_input, srid=None):
"""
The base constructor for GEOS geometry objects, and may take the
following inputs:
* strings:
- WKT
- HEXEWKB (a PostGIS-specific canonical form)
- GeoJSON (requires GDAL)
* buffer:
- WKB
The `srid` keyword is used to specify the Source Reference Identifier
(SRID) number for this Geometry. If not set, the SRID will be None.
"""
input_srid = None
if isinstance(geo_input, bytes):
geo_input = force_text(geo_input)
if isinstance(geo_input, str):
wkt_m = wkt_regex.match(geo_input)
if wkt_m:
# Handling WKT input.
if wkt_m.group('srid'):
input_srid = int(wkt_m.group('srid'))
g = wkt_r().read(force_bytes(wkt_m.group('wkt')))
elif hex_regex.match(geo_input):
# Handling HEXEWKB input.
g = wkb_r().read(force_bytes(geo_input))
elif json_regex.match(geo_input):
# Handling GeoJSON input.
g = wkb_r().read(gdal.OGRGeometry(geo_input).wkb)
else:
raise ValueError(
'String input unrecognized as WKT EWKT, and HEXEWKB.')
elif isinstance(geo_input, GEOM_PTR):
# When the input is a pointer to a geometry (GEOM_PTR).
g = geo_input
elif isinstance(geo_input, memoryview):
# When the input is a buffer (WKB).
g = wkb_r().read(geo_input)
elif isinstance(geo_input, GEOSGeometry):
g = capi.geom_clone(geo_input.ptr)
else:
# Invalid geometry type.
raise TypeError('Improper geometry input type: %s' %
type(geo_input))
if not g:
raise GEOSException(
'Could not initialize GEOS Geometry with given input.')
input_srid = input_srid or capi.geos_get_srid(g) or None
if input_srid and srid and input_srid != srid:
raise ValueError('Input geometry already has SRID: %d.' %
input_srid)
# Setting the pointer object with a valid pointer.
self.ptr = g
# Post-initialization setup.
self._post_init(input_srid or srid)
def __init__(self, geo_input, srid=None):
"""
The base constructor for GEOS geometry objects, and may take the
following inputs:
* strings:
- WKT
- HEXEWKB (a PostGIS-specific canonical form)
- GeoJSON (requires GDAL)
* buffer:
- WKB
The `srid` keyword is used to specify the Source Reference Identifier
(SRID) number for this Geometry. If not set, the SRID will be None.
"""
input_srid = None
if isinstance(geo_input, bytes):
geo_input = force_text(geo_input)
if isinstance(geo_input, str):
wkt_m = wkt_regex.match(geo_input)
if wkt_m:
# Handling WKT input.
if wkt_m.group('srid'):
input_srid = int(wkt_m.group('srid'))
g = wkt_r().read(force_bytes(wkt_m.group('wkt')))
elif hex_regex.match(geo_input):
# Handling HEXEWKB input.
g = wkb_r().read(force_bytes(geo_input))
elif json_regex.match(geo_input):
# Handling GeoJSON input.
ogr = gdal.OGRGeometry.from_json(geo_input)
g = ogr._geos_ptr()
input_srid = ogr.srid
else:
raise ValueError('String input unrecognized as WKT EWKT, and HEXEWKB.')
elif isinstance(geo_input, GEOM_PTR):
# When the input is a pointer to a geometry (GEOM_PTR).
g = geo_input
elif isinstance(geo_input, memoryview):
# When the input is a buffer (WKB).
g = wkb_r().read(geo_input)
elif isinstance(geo_input, GEOSGeometry):
g = capi.geom_clone(geo_input.ptr)
else:
# Invalid geometry type.
raise TypeError('Improper geometry input type: %s' % type(geo_input))
if not g:
raise GEOSException('Could not initialize GEOS Geometry with given input.')
input_srid = input_srid or capi.geos_get_srid(g) or None
if input_srid and srid and input_srid != srid:
raise ValueError('Input geometry already has SRID: %d.' % input_srid)
# Setting the pointer object with a valid pointer.
self.ptr = g
# Post-initialization setup.
self._post_init(input_srid or srid)
def __init__(self, geo_input, srid=None):
"""
The base constructor for GEOS geometry objects, and may take the
following inputs:
* strings:
- WKT
- HEXEWKB (a PostGIS-specific canonical form)
- GeoJSON (requires GDAL)
* buffer:
- WKB
The `srid` keyword is used to specify the Source Reference Identifier
(SRID) number for this Geometry. If not set, the SRID will be None.
"""
if isinstance(geo_input, basestring):
if isinstance(geo_input, unicode):
# Encoding to ASCII, WKT or HEXEWKB doesn't need any more.
geo_input = geo_input.encode('ascii')
wkt_m = wkt_regex.match(geo_input)
if wkt_m:
# Handling WKT input.
if wkt_m.group('srid'): srid = int(wkt_m.group('srid'))
g = wkt_r().read(wkt_m.group('wkt'))
elif hex_regex.match(geo_input):
# Handling HEXEWKB input.
g = wkb_r().read(geo_input)
elif gdal.HAS_GDAL and json_regex.match(geo_input):
# Handling GeoJSON input.
g = wkb_r().read(gdal.OGRGeometry(geo_input).wkb)
else:
raise ValueError(
'String or unicode input unrecognized as WKT EWKT, and HEXEWKB.'
)
elif isinstance(geo_input, GEOM_PTR):
# When the input is a pointer to a geomtry (GEOM_PTR).
g = geo_input
elif isinstance(geo_input, buffer):
# When the input is a buffer (WKB).
g = wkb_r().read(geo_input)
elif isinstance(geo_input, GEOSGeometry):
g = capi.geom_clone(geo_input.ptr)
else:
# Invalid geometry type.
raise TypeError('Improper geometry input type: %s' %
str(type(geo_input)))
if bool(g):
# Setting the pointer object with a valid pointer.
self.ptr = g
else:
raise GEOSException(
'Could not initialize GEOS Geometry with given input.')
# Post-initialization setup.
self._post_init(srid)
def __init__(self, geo_input, srid=None):
"""
The base constructor for GEOS geometry objects, and may take the
following inputs:
* strings:
- WKT
- HEXEWKB (a PostGIS-specific canonical form)
- GeoJSON (requires GDAL)
* buffer:
- WKB
The `srid` keyword is used to specify the Source Reference Identifier
(SRID) number for this Geometry. If not set, the SRID will be None.
"""
if isinstance(geo_input, bytes):
geo_input = force_text(geo_input)
if isinstance(geo_input, six.string_types):
wkt_m = wkt_regex.match(geo_input)
if wkt_m:
# Handling WKT input.
if wkt_m.group("srid"):
srid = int(wkt_m.group("srid"))
g = wkt_r().read(force_bytes(wkt_m.group("wkt")))
elif hex_regex.match(geo_input):
# Handling HEXEWKB input.
g = wkb_r().read(force_bytes(geo_input))
elif json_regex.match(geo_input):
# Handling GeoJSON input.
if not gdal.HAS_GDAL:
raise ValueError("Initializing geometry from JSON input requires GDAL.")
g = wkb_r().read(gdal.OGRGeometry(geo_input).wkb)
else:
raise ValueError("String or unicode input unrecognized as WKT EWKT, and HEXEWKB.")
elif isinstance(geo_input, GEOM_PTR):
# When the input is a pointer to a geometry (GEOM_PTR).
g = geo_input
elif isinstance(geo_input, six.memoryview):
# When the input is a buffer (WKB).
g = wkb_r().read(geo_input)
elif isinstance(geo_input, GEOSGeometry):
g = capi.geom_clone(geo_input.ptr)
else:
# Invalid geometry type.
raise TypeError("Improper geometry input type: %s" % str(type(geo_input)))
if g:
# Setting the pointer object with a valid pointer.
self.ptr = g
else:
raise GEOSException("Could not initialize GEOS Geometry with given input.")
# Post-initialization setup.
self._post_init(srid)
def __init__(self, geo_input, srid=None):
"""
The base constructor for GEOS geometry objects, and may take the
following inputs:
* strings:
- WKT
- HEXEWKB (a PostGIS-specific canonical form)
- GeoJSON (requires GDAL)
* buffer:
- WKB
The `srid` keyword is used to specify the Source Reference Identifier
(SRID) number for this Geometry. If not set, the SRID will be None.
"""
if isinstance(geo_input, basestring):
if isinstance(geo_input, unicode):
# Encoding to ASCII, WKT or HEXEWKB doesn't need any more.
geo_input = geo_input.encode('ascii')
wkt_m = wkt_regex.match(geo_input)
if wkt_m:
# Handling WKT input.
if wkt_m.group('srid'): srid = int(wkt_m.group('srid'))
g = wkt_r().read(wkt_m.group('wkt'))
elif hex_regex.match(geo_input):
# Handling HEXEWKB input.
g = wkb_r().read(geo_input)
elif gdal.HAS_GDAL and json_regex.match(geo_input):
# Handling GeoJSON input.
g = wkb_r().read(gdal.OGRGeometry(geo_input).wkb)
else:
raise ValueError('String or unicode input unrecognized as WKT EWKT, and HEXEWKB.')
elif isinstance(geo_input, GEOM_PTR):
# When the input is a pointer to a geomtry (GEOM_PTR).
g = geo_input
elif isinstance(geo_input, buffer):
# When the input is a buffer (WKB).
g = wkb_r().read(geo_input)
elif isinstance(geo_input, GEOSGeometry):
g = capi.geom_clone(geo_input.ptr)
else:
# Invalid geometry type.
raise TypeError('Improper geometry input type: %s' % str(type(geo_input)))
if bool(g):
# Setting the pointer object with a valid pointer.
self.ptr = g
else:
raise GEOSException('Could not initialize GEOS Geometry with given input.')
# Post-initialization setup.
self._post_init(srid)
def get_geometry_converter(self, expression):
if self.spatial_version >= (4, 3, 0):
read = wkb_r().read
return lambda value, expression, connection: None if value is None else GEOSGeometry(
read(value))
else:
read = wkt_r().read
srid = expression.output_field.srid
if srid == -1:
srid = None
return lambda value, expression, connection: None if value is None else GEOSGeometry(
read(value), srid)
def get_geometry_converter(self, expression):
geom_class = expression.output_field.geom_class
if self.spatial_version >= (4, 3, 0):
read = wkb_r().read
def converter(value, expression, connection):
return None if value is None else GEOSGeometryBase(read(value), geom_class)
else:
read = wkt_r().read
srid = expression.output_field.srid
if srid == -1:
srid = None
def converter(value, expression, connection):
if value is not None:
geom = GEOSGeometryBase(read(value), geom_class)
if srid:
geom.srid = srid
return geom
return converter
def get_geometry_converter(self, expression):
geom_class = expression.output_field.geom_class
if self.spatial_version >= (4, 3, 0):
read = wkb_r().read
def converter(value, expression, connection):
return None if value is None else GEOSGeometryBase(read(value), geom_class)
else:
read = wkt_r().read
srid = expression.output_field.srid
if srid == -1:
srid = None
def converter(value, expression, connection):
if value is not None:
geom = GEOSGeometryBase(read(value), geom_class)
if srid:
geom.srid = srid
return geom
return converter
def _from_wkt(wkt):
return wkt_r().read(wkt)
return converters
def convert_geometry(self, value, expression, connection, context):
if value:
value = Geometry(value)
if 'transformed_srid' in context:
value.srid = context['transformed_srid']
return value
=======
def get_geometry_converter(self, expression):
geom_class = expression.output_field.geom_class
if self.spatial_version >= (4, 3, 0):
read = wkb_r().read
def converter(value, expression, connection):
return None if value is None else GEOSGeometryBase(read(value), geom_class)
else:
read = wkt_r().read
srid = expression.output_field.srid
if srid == -1:
srid = None
def converter(value, expression, connection):
if value is not None:
geom = GEOSGeometryBase(read(value), geom_class)
if srid:
geom.srid = srid
return geom
return converter
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
