I can convert pointcloud without Polygons or Triangles to a polydata.
And I want to use vtkCutter to get  cross section  with a plane, But it failed and report errors as follow
ERROR: In …\Filters\General\vtkOBBTree.cxx, line 1058
vtkOBBTree (0FA04398): Can’t build OBB tree - no data available!
And I change a method ,which use vtkIntersectionPolyDataFilter ,But it  also report errors as follow
ERROR: In …\Common\ExecutionModel\vtkExecutive.cxx, line 811
vtkCompositeDataPipeline (0FA35C88): UpdateInformation invoked during another request.  Returning failure to algorithm vtkIntersectionPolyDataFilter(1F025978).
And How can I do? Please can you help me? Thanks.