[vtkusers] vtkActor updating problem ( in Java)

[Henry Zhang]

Hello, there,

I have the following pipeline at time t0
vtkPoints ---> vtkPolyData-->vtkPolyDataMapper--->vtkActor

At time t1, I only change vtkPoints, I want to see the
change of my vtkActor. However, it disappears.

Can you please tell me how to fix this problem?

Thanks

Henry