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[PolyCollection] gracefully handle empty PolyCollections

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Jan Petykiewicz 2026-02-15 01:26:06 -08:00
commit 278f0783da
1 changed files with 5 additions and 1 deletions
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6
masque/shapes/poly_collection.py
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@ -56,6 +56,8 @@ class PolyCollection(Shape):
"""
Iterator which provides slices which index vertex_lists
"""
if self._vertex_offsets.size == 0:
return
for ii, ff in zip(
self._vertex_offsets,
chain(self._vertex_offsets, (self._vertex_lists.shape[0],)),
@ -168,7 +170,9 @@ class PolyCollection(Shape):
annotations = copy.deepcopy(self.annotations),
) for vv in self.polygon_vertices]
def get_bounds_single(self) -> NDArray[numpy.float64]: # TODO note shape get_bounds doesn't include repetition
def get_bounds_single(self) -> NDArray[numpy.float64] | None: # TODO note shape get_bounds doesn't include repetition
if self._vertex_lists.size == 0:
return None
return numpy.vstack((numpy.min(self._vertex_lists, axis=0),
numpy.max(self._vertex_lists, axis=0)))