def _create_polygon(self, length, items):
# Instantiate LinearRing objects if necessary, but don't clone them yet
# _construct_ring will throw a TypeError if a parameter isn't a valid ring
# If we cloned the pointers here, we wouldn't be able to clean up
# in case of error.
if not length:
return capi.create_empty_polygon()
rings = []
for r in items:
if isinstance(r, GEOM_PTR):
rings.append(r)
else:
rings.append(self._construct_ring(r))
shell = self._clone(rings.pop(0))
n_holes = length - 1
if n_holes:
holes = get_pointer_arr(n_holes)
for i, r in enumerate(rings):
holes[i] = self._clone(r)
holes_param = byref(holes)
else:
holes_param = None
return capi.create_polygon(shell, holes_param, c_uint(n_holes))
def _create_polygon(self, length, items):
# Instantiate LinearRing objects if necessary, but don't clone them yet
# _construct_ring will throw a TypeError if a parameter isn't a valid ring
# If we cloned the pointers here, we wouldn't be able to clean up
# in case of error.
if not length:
return capi.create_empty_polygon()
rings = []
for r in items:
if isinstance(r, GEOM_PTR):
rings.append(r)
else:
rings.append(self._construct_ring(r))
shell = self._clone(rings.pop(0))
n_holes = length - 1
if n_holes:
holes = get_pointer_arr(n_holes)
for i, r in enumerate(rings):
holes[i] = self._clone(r)
holes_param = byref(holes)
else:
holes_param = None
return capi.create_polygon(shell, holes_param, c_uint(n_holes))
