[vtkusers] About the Solid CAD File Output.

[anast.jm at pg.com]

Yan,

STL only supports surfaces using triangles (the surface defines the enclosed
volume, which is exactly what your MarchingCubes is doing). If you need to
create a tetrahedral mesh, try looking at vtkDelauney3D and its examples for
some ideas. I've used surface triangles in STL format to generate solid parts
with RP and it works fine. If you have a surface that is not closed, try
extruding the surface to create an enclosed volume (see vtkLinearExtrusionFilter
with capping on) before saving to STL...john


                                                                
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From: "#YAN RI AN#" <PS7278514B at ntu.edu.sg>@public.kitware.com on 10/02/2002
04:54 PM ZE8
                                                                                                 
      "#YAN RI AN#" <PS7278514B at ntu.edu.sg>           To:   "Vtkusers (E-mail)"                  
                        @public.kitware.com        <vtkusers at public.kitware.com>                 
                                                      Cc:    (bcc: John Anast-JM/PGI)            
                                              Subject:      [vtkusers] About the Solid CAD File  
                                   Sent by:        Output.                                       
          vtkusers-admin at public.kitware.com                                                      
                        10/02/2002 04:54 AM                                                      
                                                                                                 
                                                                                                 




Dear VTK- Users:
I want to export the Solid *.stl Format file for the Rapid Prototyping
Technology.
But I can only get the IsoSurface *.stl Format outout file using
vtkMarchingCubes Class.

The source code is:
.......
    vtkMarchingCubes *iso=vtkMarchingCubes::New();
    iso->SetInput(v16->GetOutput());
    iso->SetValue(0,1150);
    iso->ComputeGradientsOn();
    iso->ComputeScalarsOff();
....

How can I get the Solid *.STL Format output file?
***************************************
* Best Regards
* Yan Rian (Research Student)
* Email : ps7278514b at ntu.edu.sg
* Lab : AMRC Research Centre
* Nanyang Technological University
* Singapore
***************************************


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