Merge pull request #1167 from CadQuery/better-normals

Do not recompute normals when converting to vtk

Author: jmwright

cadquery/occ_impl/exporters/vtk.py

@@ -18,7 +18,7 @@ def toString(
 
     writer = vtkXMLPolyDataWriter()
     writer.SetWriteToOutputString(True)
-    writer.SetInputData(shape.toVtkPolyData(tolerance, angularTolerance))
+    writer.SetInputData(shape.toVtkPolyData(tolerance, angularTolerance, True))
     writer.Write()
 
     return writer.GetOutputString()

cadquery/occ_impl/shapes.py

@@ -1246,7 +1246,7 @@ def toVtkPolyData(
         self,
         tolerance: Optional[float] = None,
         angularTolerance: Optional[float] = None,
-        normals: bool = True,
+        normals: bool = False,
     ) -> vtkPolyData:
         """
         Convert shape to vtkPolyData