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[remove_colinear_vertices / Path] add preserve_uturns and use it for paths

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jan 2026-03-09 03:28:31 -07:00
commit ea93a7ef37
3 changed files with 56 additions and 19 deletions
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13
masque/test/test_utils.py
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@ -29,14 +29,19 @@ def test_remove_colinear_vertices() -> None:
def test_remove_colinear_vertices_exhaustive() -> None:
# U-turn
v = [[0, 0], [10, 0], [0, 0]]
v_clean = remove_colinear_vertices(v, closed_path=False)
v_clean = remove_colinear_vertices(v, closed_path=False, preserve_uturns=True)
# Open path should keep ends. [10,0] is between [0,0] and [0,0]?
# Yes, they are all on the same line.
assert len(v_clean) == 2
# They are colinear, but it's a 180 degree turn.
# We preserve 180 degree turns if preserve_uturns is True.
assert len(v_clean) == 3
v_collapsed = remove_colinear_vertices(v, closed_path=False, preserve_uturns=False)
# If not preserving u-turns, it should collapse to just the endpoints
assert len(v_collapsed) == 2
# 180 degree U-turn in closed path
v = [[0, 0], [10, 0], [5, 0]]
v_clean = remove_colinear_vertices(v, closed_path=True)
v_clean = remove_colinear_vertices(v, closed_path=True, preserve_uturns=False)
assert len(v_clean) == 2