how can I increase the number of Polydata cells?

Hi all, I fix it by changing the SetMaximumTriangleArea method to SetMaximumEdgeLength.

ASF = vtk.vtkAdaptiveSubdivisionFilter()
ASF.SetInputData(part)
# ASF.SetMaximumTriangleArea(maxCell)
ASF.SetMaximumEdgeLength(maxCell)
ASF.Update()