[vtkusers] vrml HELP!

[Galen Wilkerson]

Paul and others,

Thanks for your help.

I just figured it out.  I was using colored vtkLines, which looked fine in 
the VTK engine, but the vtkVRMLExporter was somehow not interested in 
their colors, so they were being written as black.  I fixed it by wrapping 
tubes (vtkTubeFilter) around the lines.

IMHO, Might be useful to fix the vtkVRMLExporter to preserve the color of 
lines.

cheers,
-Galen

On Tue, 15 Oct 2002, Paul A Hsieh wrote:

> 
> Hi Galen: I have used vtkVRMLExporter a bit and have been relatively
> successfully in producing wrl files that look like what is displayed by the
> vtk renderer. Your posted code lines looks OK. The fact that all the
> objects look blue suggests that color to scalar mapping might not be
> correct. For example, if blue is the min value of your scalar to color
> mapping and all your scalar values are below the min value. I might be able
> to help if you would send me a sample code that creates one object (just to
> illustrate your problem) and also the output wrl file. Regards, Paul Hsieh
> (pahsieh at usgs.gov).
> 
> 
>                                                                                                                                         
>                       Galen Wilkerson                                                                                                   
>                       <galen at sp1.compbio.wash         To:      vtkusers at public.kitware.com                                              
>                       ington.edu>                     cc:                                                                               
>                       Sent by:                        Subject: [vtkusers] vrml HELP!                                                    
>                       vtkusers-admin at public.k                                                                                           
>                       itware.com                                                                                                        
>                                                                                                                                         
>                                                                                                                                         
>                       10/15/2002 11:17 AM                                                                                               
>                                                                                                                                         
>                                                                                                                                         
> 
> 
> 
> 
> Is there anyone who knows enough about vrml and vtkVRMLExporter to tell me
> why my multi-colored objects are all blue in VRML?
> 
> thanks!
> -Galen
> 
> --
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> http://compbio.washington.edu/
> phone: 206 732 6127
> fax: 206 732 6055
> 
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Computational Biology Research Group
http://compbio.washington.edu/
phone: 206 732 6127
fax: 206 732 6055