[vtkusers] Re: Boolean Operations for STL objects

Goodwin Lawlor goodwin.lawlor at ucd.ie
Tue Mar 20 17:21:36 EDT 2007


MIRG UTM wrote:
> Hi VTK Gurus
> 
> I have two STL objects and want to subtract one from the other. Can
> someone please help me how to do this.
> 
> Is there any possibility of using Boolean Operations (DIFFERENCE,
> UNION and INTERSECTION) for PolyData objects in VTK ?
> 
> Thanks in advance.
> 
> MIRG

HI MIRG,

You could try using the collision detection class here
http://vtkbioeng.cvs.sourceforge.net/*checkout*/vtkbioeng/vtkbioeng/vtkCollisionDetectionFilter.cxx
http://vtkbioeng.cvs.sourceforge.net/*checkout*/vtkbioeng/vtkbioeng/vtkCollisionDetectionFilter.h

like its used here
http://vtkbioeng.cvs.sourceforge.net/*checkout*/vtkbioeng/vtkbioeng/Testing/Cxx/TestCollisionDetection1.cxx

to clip one polygonal surface from the other.

hth

Goodwin




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