[vtkusers] mapping scalars onto geometry..

[Bill Lorensen]

Yes, you need to apply a scalar to each pint. You can do this witj vtkProbeFilter if your scalars are defined in a dataset. There is an example, combColorIso.tcl (or something close to that) that illustrates this.

Bill

At 05:26 PM 11/17/01 -0500, K.R.Subramanian wrote:

>  I am trying to map scalar or vector functions onto geometry; for instance given the
>gradient
>magnitude of a volume, I would like to map that onto the polydata generated by Marching
>Cubes..
>- something like 3D texture mapping (I know vtk doesnt support 3D texture mapping)..
>
>Do I need to go through each of the points(vertices) of the polydata, determine the
>appropriate scalar value and then set it, or is there an easier way?
>
>Thanks.
>
>     -- krs
>
>--
>K.R.Subramanian                        Phone: (704) 687-4872
>Department of Computer Science         FAX:   (704) 687-4893
>UNC Charlotte, CARC 311                Email: krs at cs.uncc.edu
>Charlotte, NC 28223-0001               Web: http://www.cs.uncc.edu/~krs
>
>
>
>_______________________________________________
>This is the private VTK discussion list. 
>Please keep messages on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>Follow this link to subscribe/unsubscribe:
>http://public.kitware.com/mailman/listinfo/vtkusers