[vtkusers] Visualizing normal vectors

Andaharoo Andx_roo at live.com
Tue Dec 18 20:37:04 EST 2018


I'd recommend using vtkOpenGLGlyph3DMapper instead. Much faster, assuming you
have some gpu. Just make sure the normal array/orientation array is in the
input polyData's point data.

IE:
polyData->GetPointData()->AddArray(your normal array)

Then just specify the array the mapper should use with
SetOrientationArray(your arrays name here). It will then search for the
array in the input polydata. I frequently use this to draw thousands of
oriented arrows with VTK.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html


More information about the vtkusers mailing list