2025-summer/team-3
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remove triangles with no area

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Laura Klünder 2017-11-14 03:15:12 +01:00
parent 73f27300ca
commit 685a11cde2
1 changed files with 9 additions and 4 deletions
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13
src/c3nav/mapdata/render/data.py
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@ -505,6 +505,9 @@ class LevelGeometries:
return vertex_values
def _filter_faces(self, faces):
return faces[np.all(np.any(faces[:, (0, 1, 2), :]-faces[:, (2, 0, 1), :], axis=2), axis=1)]
def _create_polyhedron(self, faces, lower, upper, top=True, sides=True, bottom=True):
if not any(faces):
return ()
@ -556,22 +559,24 @@ class LevelGeometries:
# top faces
if top:
mesh.top = np.dstack((self.vertices[geom_faces], upper[geom_faces]))
mesh.top = self._filter_faces(np.dstack((self.vertices[geom_faces], upper[geom_faces])))
# side faces
if sides:
mesh.sides = np.vstack((
mesh.sides = self._filter_faces(np.vstack((
# upper
np.dstack((self.vertices[boundaries[:, (1, 0, 0)]],
np.hstack((upper[boundaries[:, (1, 0)]], lower[boundaries[:, (0,)]])))),
# lower
np.dstack((self.vertices[boundaries[:, (0, 1, 1)]],
np.hstack((lower[boundaries[:, (0, 1)]], upper[boundaries[:, (1,)]]))))
))
)))
# bottom faces
if bottom:
mesh.bottom = np.dstack((self.vertices[np.flip(geom_faces, axis=1)], lower[geom_faces]))
mesh.bottom = self._filter_faces(
np.dstack((self.vertices[np.flip(geom_faces, axis=1)], lower[geom_faces]))
)
return tuple((mesh, ))