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Comment and error-checking fixes

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This commit is contained in:
Jan Petykiewicz 2019-04-20 14:19:18 -07:00
parent 8fe8bbd655
commit d53c9487ff
1 changed files with 5 additions and 4 deletions
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9
masque/shapes/polygon.py
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@ -13,7 +13,8 @@ __author__ = 'Jan Petykiewicz'
class Polygon(Shape):
"""
A polygon, consisting of a bunch of vertices (Nx2 ndarray) along with an offset.
A polygon, consisting of a bunch of vertices (Nx2 ndarray) which specify an
implicitly-closed boundary, and an offset.
A normalized_form(...) is available, but can be quite slow with lots of vertices.
"""
@ -35,14 +36,14 @@ class Polygon(Shape):
if len(val.shape) < 2 or val.shape[1] != 2:
raise PatternError('Vertices must be an Nx2 array')
if val.shape[0] < 3:
raise PatternError('Must have at least 3 vertices (Nx2, N>3)')
raise PatternError('Must have at least 3 vertices (Nx2 where N>2)')
self._vertices = val
# xs property
@property
def xs(self) -> numpy.ndarray:
"""
All x vertices in a 1D ndarray
All vertex x coords as a 1D ndarray
"""
return self.vertices[:, 0]
@ -57,7 +58,7 @@ class Polygon(Shape):
@property
def ys(self) -> numpy.ndarray:
"""
All y vertices in a 1D ndarray
All vertex y coords as a 1D ndarray
"""
return self.vertices[:, 1]