opengl renderer fix error when trying to render empty borders
@@ -171,7 +171,7 @@ class OpenGLEngine(Base3DEngine):
)))
if not lines:
- return np.empty((0, ))
+ return np.empty((0, 3, 3+len(append)))
lines = unary_union(lines).buffer(width, cap_style=CAP_STYLE.flat, join_style=JOIN_STYLE.mitre)
