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[remove_duplicate_vertices] improve handling of degenerate shapes

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jan 2026-03-08 10:24:25 -07:00
commit 19dafad157
1 changed files with 7 additions and 1 deletions
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masque/utils/vertices.py
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@ -18,10 +18,16 @@ def remove_duplicate_vertices(vertices: ArrayLike, closed_path: bool = True) ->
`vertices` with no consecutive duplicates. This may be a view into the original array. `vertices` with no consecutive duplicates. This may be a view into the original array.
""" """
vertices = numpy.asarray(vertices) vertices = numpy.asarray(vertices)
if vertices.shape[0] <= 1:
return vertices
duplicates = (vertices == numpy.roll(vertices, -1, axis=0)).all(axis=1) duplicates = (vertices == numpy.roll(vertices, -1, axis=0)).all(axis=1)
if not closed_path: if not closed_path:
duplicates[-1] = False duplicates[-1] = False
return vertices[~duplicates]
result = vertices[~duplicates]
if result.shape[0] == 0 and vertices.shape[0] > 0:
return vertices[:1]
return result
def remove_colinear_vertices(vertices: ArrayLike, closed_path: bool = True) -> NDArray[numpy.float64]: def remove_colinear_vertices(vertices: ArrayLike, closed_path: bool = True) -> NDArray[numpy.float64]: