[vtkusers] 3D coloured scatter plot

[David Doria]

On Thu, Jan 5, 2012 at 12:14 PM, Bill Cheatham <cheathambill at gmail.com>wrote:

> Hi All,
>
> This may be a very obvious question, but I'm having some trouble creating
> a 3D scatter plot of coloured points.
>
> So far, I have been using the directions hinted at in this thread:
> http://public.kitware.com/pipermail/vtkusers/2004-June/074696.html
>
> i.e. I have used the cube.cxx example, and changed setPolys to setVerts.
> However, this just gives me gray points in 3D space, while I want each
> point to have its own RGB colour. In addition, it seems like using the
> points/polygons paradigm is not best suited to what I am trying to achieve;
> all I really want to do is plot the points themselves, without the added
> complication of 'unseen' polygons connecting them.
>
> Any help or tips would be much appreciated.
>
> Thanks,
>
> Bill
>

Is this what you're trying to do?
http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColoredPoints

You may also want to read this:
http://www.vtk.org/Wiki/VTK/Tutorials/GeometryTopology

David
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