[vtkusers] Problem with Colour Settings in .vtk format when it is used to export to .wrl and .obj from Mayavi

[David Cole-Baker]

Hi Sebastien

We had our developers check out the file that is exported and the red is color set for all points.

            color DEF VTKcolors Color {
              color [
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
           1 0 0,
...

Has anyone else got any other ideas
Regards
David


From: Sebastien Jourdain [mailto:sebastien.jourdain at kitware.com]
Sent: Monday, 28 February 2011 3:44 p.m.
To: David Cole-Baker
Cc: vtkusers at vtk.org
Subject: Re: [vtkusers] Problem with Colour Settings in .vtk format when it is used to export to .wrl and .obj from Mayavi

Hi David,

How do you read the generated vrml file ?
I do believe it might be the reader that you are using that may not use the color information in the file.

Seb

On Sun, Feb 27, 2011 at 4:05 PM, David Cole-Baker <David.Cole-Baker at nextspace.co.nz<mailto:David.Cole-Baker at nextspace.co.nz>> wrote:
Hi

We are using pythonxy & mayavi to create a 3D scene from .vtk files.

When the .vtk files are loaded in to mayavi (and surfaces etc added) the colours in the .vtk display nicely, however when the scene is exported to either .obj or .wrl (i.e. "Save Scene As VRML file") the colour is lost and the scene is all changed to one colour and the .wrl or .obj file is all set to one colour (e.g. red as in the case of the .wrl files),

We believe the heart of the problem is something in the .vtk files.  (the one we have been using is attached)
Is this something that Kitware can fix easily enough or is there something else anyone can suggest.

We have the geologist community very interested in sorting this problem out quickly, in particular to help visualise seismic data of the recent Christchurch earthquakes here in New Zealand.

Any help & direction you can give on this would be gratefully appreciated.


Regards

DAVID COLE-BAKER | Account Manager
D: +64.9.571.4102 | M: +64.21.824.899 | E: david.cole-baker at nextspace.co.nz|<mailto:david.cole-baker at nextspace.co.nz%7C> http://www.nextspace.co.nz<http://www.nextspace.co.nz/>
Nextspace Ltd, Level 3, Building C, Millennium Centre, 602 Gt South Rd, Ellerslie, Auckland 1051 | PO Box 11484, Ellerslie, 1542 Auckland, New Zealand
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