numpy_interface.dataset_adapter vtkPolydata issue: getting vtkLine cells
it appears that getting cells in vtkPolydata with
cells = dsa.WrapDataObject(self).Polygons is limited to vtkPolygon cells (including e.g. vtkTriangle cells). However vtkPolydata can also be used to represent polylines composed of vtkLine cells, but in this case the
Polygons method returns a void array.
This is a problem in some application!
Thanks very much!