def __init__(self, *args, **kwargs):
"Initializes a Geometry Collection from a sequence of Geometry objects."
# Checking the arguments
if not args:
raise TypeError, 'Must provide at least one Geometry to initialize %s.' % self.__class__.__name__
if len(args) == 1:
# If only one geometry provided or a list of geometries is provided
# in the first argument.
if isinstance(args[0], (TupleType, ListType)):
init_geoms = args[0]
else:
init_geoms = args
else:
init_geoms = args
# Ensuring that only the permitted geometries are allowed in this collection
if False in [isinstance(geom, self._allowed) for geom in init_geoms]:
raise TypeError('Invalid Geometry type encountered in the arguments.')
# Creating the geometry pointer array.
ngeoms = len(init_geoms)
geoms = get_pointer_arr(ngeoms)
for i in xrange(ngeoms): geoms[i] = geom_clone(init_geoms[i].ptr)
super(GeometryCollection, self).__init__(create_collection(c_int(self._typeid), byref(geoms), c_uint(ngeoms)), **kwargs)
def __init__(self, *args, **kwargs):
"Initializes a Geometry Collection from a sequence of Geometry objects."
# Checking the arguments
if not args:
raise TypeError, 'Must provide at least one Geometry to initialize %s.' % self.__class__.__name__
if len(args) == 1:
# If only one geometry provided or a list of geometries is provided
# in the first argument.
if isinstance(args[0], (TupleType, ListType)):
init_geoms = args[0]
else:
init_geoms = args
else:
init_geoms = args
# Ensuring that only the permitted geometries are allowed in this collection
if False in [isinstance(geom, self._allowed) for geom in init_geoms]:
raise TypeError(
'Invalid Geometry type encountered in the arguments.')
# Creating the geometry pointer array.
ngeoms = len(init_geoms)
geoms = get_pointer_arr(ngeoms)
for i in xrange(ngeoms):
geoms[i] = geom_clone(init_geoms[i].ptr)
super(GeometryCollection, self).__init__(
create_collection(c_int(self._typeid), byref(geoms),
c_uint(ngeoms)), **kwargs)
def _create_collection(self, length, items):
# Creating the geometry pointer array.
geoms = (GEOM_PTR * length)(*[
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
capi.geom_clone(getattr(g, 'ptr', g)) for g in items
])
return capi.create_collection(c_int(self._typeid), byref(geoms), c_uint(length))
def _create_collection(self, length, items):
# Creating the geometry pointer array.
geoms = (GEOM_PTR * length)(*[
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
capi.geom_clone(getattr(g, 'ptr', g)) for g in items
])
return capi.create_collection(c_int(self._typeid), byref(geoms), c_uint(length))
def _create_collection(self, length, items):
# Creating the geometry pointer array.
geoms = get_pointer_arr(length)
for i, g in enumerate(items):
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
geoms[i] = capi.geom_clone(getattr(g, 'ptr', g))
return capi.create_collection(c_int(self._typeid), byref(geoms), c_uint(length))
def _create_collection(self, length, items):
# Creating the geometry pointer array.
geoms = get_pointer_arr(length)
for i, g in enumerate(items):
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
geoms[i] = capi.geom_clone(getattr(g, 'ptr', g))
return capi.create_collection(c_int(self._typeid), byref(geoms), c_uint(length))
def __setitem__(self, index, geom):
"Sets the Geometry at the specified index."
self._checkindex(index)
if not isinstance(geom, self._allowed):
raise TypeError('Incompatible Geometry for collection.')
ngeoms = len(self)
geoms = get_pointer_arr(ngeoms)
for i in xrange(ngeoms):
if i == index:
geoms[i] = geom_clone(geom.ptr)
else:
geoms[i] = geom_clone(get_geomn(self.ptr, i))
# Creating a new collection, and destroying the contents of the previous poiner.
prev_ptr = self.ptr
srid = self.srid
self._ptr = create_collection(c_int(self._typeid), byref(geoms), c_uint(ngeoms))
if srid: self.srid = srid
destroy_geom(prev_ptr)
def __setitem__(self, index, geom):
"Sets the Geometry at the specified index."
self._checkindex(index)
if not isinstance(geom, self._allowed):
raise TypeError('Incompatible Geometry for collection.')
ngeoms = len(self)
geoms = get_pointer_arr(ngeoms)
for i in xrange(ngeoms):
if i == index:
geoms[i] = geom_clone(geom.ptr)
else:
geoms[i] = geom_clone(get_geomn(self.ptr, i))
# Creating a new collection, and destroying the contents of the previous poiner.
prev_ptr = self.ptr
srid = self.srid
self._ptr = create_collection(c_int(self._typeid), byref(geoms),
c_uint(ngeoms))
if srid: self.srid = srid
destroy_geom(prev_ptr)
# Creating the geometry pointer array.
<<<<<<< HEAD
geoms = get_pointer_arr(length)
for i, g in enumerate(items):
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
geoms[i] = capi.geom_clone(getattr(g, 'ptr', g))
=======
geoms = (GEOM_PTR * length)(*[
# this is a little sloppy, but makes life easier
# allow GEOSGeometry types (python wrappers) or pointer types
capi.geom_clone(getattr(g, 'ptr', g)) for g in items
])
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
return capi.create_collection(c_int(self._typeid), byref(geoms), c_uint(length))
def _get_single_internal(self, index):
return capi.get_geomn(self.ptr, index)
def _get_single_external(self, index):
<<<<<<< HEAD
"Returns the Geometry from this Collection at the given index (0-based)."
=======
"Return the Geometry from this Collection at the given index (0-based)."
>>>>>>> 37c99181c9a6b95433d60f8c8ef9af5731096435
# Checking the index and returning the corresponding GEOS geometry.
return GEOSGeometry(capi.geom_clone(self._get_single_internal(index)), srid=self.srid)
def _set_list(self, length, items):
"Create a new collection, and destroy the contents of the previous pointer."
"""
