[vtkusers] how to display point cloud with VTK?

[Kevin H. Hobbs]

On Mon, 2007-09-24 at 11:51 +1200, jim yu wrote:
> hi, guys
>  
> i want to display point cloud. i know the points could be represented
> by vtkPolyData. i create the vtkPoints into which i insert several
> points. but nothing is displayed.
>  

vtkPoints are not rendered. Only "cells" are rendered. The cell type you
want is a "Vertex". You need to create a vtkPolyData, add your vtkPoints
to it, create a vtkCellArray that defines each point as being part of a
vertex, and add your verts to the poly data, and I think you should be
set.

It looks like vtkVertexGlyphFilter could do what you want, so can
vtkMaskPoints.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20070924/c31501ce/attachment.pgp>