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

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This commit is contained in:
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 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): def _create_polyhedron(self, faces, lower, upper, top=True, sides=True, bottom=True):
if not any(faces): if not any(faces):
return () return ()
@ -556,22 +559,24 @@ class LevelGeometries:
# top faces # top faces
if top: 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 # side faces
if sides: if sides:
mesh.sides = np.vstack(( mesh.sides = self._filter_faces(np.vstack((
# upper # upper
np.dstack((self.vertices[boundaries[:, (1, 0, 0)]], np.dstack((self.vertices[boundaries[:, (1, 0, 0)]],
np.hstack((upper[boundaries[:, (1, 0)]], lower[boundaries[:, (0,)]])))), np.hstack((upper[boundaries[:, (1, 0)]], lower[boundaries[:, (0,)]])))),
# lower # lower
np.dstack((self.vertices[boundaries[:, (0, 1, 1)]], np.dstack((self.vertices[boundaries[:, (0, 1, 1)]],
np.hstack((lower[boundaries[:, (0, 1)]], upper[boundaries[:, (1,)]])))) np.hstack((lower[boundaries[:, (0, 1)]], upper[boundaries[:, (1,)]]))))
)) )))
# bottom faces # bottom faces
if bottom: 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, )) return tuple((mesh, ))