[vtkusers] vtkPolyDataNormals

[Xianjin Yang]

Hi VTK users,

I am trying to render a bounding box or cube-like axes around my vtkPolyData
object (scattered points). In VTK/Examples/Annotation/Tcl/cubeAxes.tcl, a
vtkPolyDataNormals object is needed for use of vtkCubeAxesActor2D, that is,
axes->SetInput(normals->GetOutput()); My question is how to get a
vtkPolyDataNormals object (normals) from my vtkPolyData object? Note that my
vtkPolyData object consists of some scattered points without edges and faces.

I am using VTK4.2/C++/WinXP. Thanks for your help in advance.

Xianjin Yang