[vtkusers] get vtkPolyData from VRML files?

[Chris Scharver]

On May 7, 2004, at 7:45 PM, ChenHao wrote:

> i am new user in VTK,here is my question.
> How can I get vtkPolyData or vtkActor or something else from a VRML 
> file?
> I know vtkActor can be get from vtkRenderer after import a VRML 
> file,but is there any other way to get vtkActor or something else when 
> NOT using vtkRenderer?

If you're willing to install and use an additional software library, I 
can help you. I have some code which bridges Coin3D (an open source 
library based on the Open Inventor API) and VTK. One can read a VRML 
file and obtain vtkPolyData for its geometry. I use Coin3D to read VRML 
and VRML2 model files, and I then I manually convert the geometry into 
vtkPolyData.

The code as it stands right now is pretty custom-tailored to my thesis 
needs. VRML files must contain geometry as indexed vertex data, and I 
don't know fully which features of VRML may or may not work. I can send 
you more information off the list if you think this may help you.

Chris

--
Chris Scharver
Electronic Visualization Laboratory
The University of Illinois at Chicago
Ph: 312-996-3002   FAX: 312-413-7585
<http://www.evl.uic.edu/scharver/>