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add fallback for empty geometries

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Laura Klünder 2017-11-25 14:45:43 +01:00
parent 3720fbd0ff
commit b846f6d0ad
1 changed files with 3 additions and 0 deletions
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src/c3nav/mapdata/render/geometry/hybrid.py
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@ -63,6 +63,9 @@ class HybridGeometry:
vertices_offset += new_vertices.shape[0]
faces_offset += new_faces.shape[0]
if not vertices:
return HybridGeometry(geom, set()), np.empty((0, 2), dtype=np.int32), np.empty((0, 3), dtype=np.uint32)
vertices = np.vstack(vertices)
faces = np.vstack(faces)