[vtkusers] Boolean operation for vtkPolyData

[Stefan]

Hi Marian,

thanks for the hint! Currently i try to add two vtkPolyData to 
vtkImplicitDataSet's and use the vtkImplicitBoolean operation
as described in the Modelling/Python/icecream.py example. If it doesn't 
work i'll take a closer look at the vtkCollisionDetectionFilter 
<http://www.bioengineering-research.com/vtk/vtkCollisionDetectionFilter.htm>.

best Regards,
Stefan

Marian Panten schrieb:
> Hi Stefan,
>
> have a look at the TestCollisionDetection1.cxx. You will see the 
> filter can provide both, the intersection line and the resultion 
> polydata of both sides. Just test a bit. For example for union 
> operation you use vtkAppendPolyData to merge the two resultion polydata.
>
> see also
> http://vtk.org/pipermail/vtkusers/2007-March/090247.html
>
> Marian
>
> On Wed, Mar 19, 2008 at 3:55 PM, Stefan <sickboy at 9elements.com 
> <mailto:sickboy at 9elements.com>> wrote:
>
>     Hi Marian,
>
>     thanks for your suggestion, but finding out the intersection is
>     just one small part
>     of the boolean operations.
>
>
>     Stefan
>
>
>     Marian Panten schrieb:
>>     Hi Stefan,
>>
>>     try
>>
>>     http://www.bioengineering-research.com/vtk/vtkCollisionDetectionFilter.htm
>>
>>     this works fine! You have to apply the operations on the
>>     resulting polydata.
>>
>>     Marian
>>
>>     On Wed, Mar 19, 2008 at 3:16 PM, Stefan <sickboy at 9elements.com
>>     <mailto:sickboy at 9elements.com>> wrote:
>>
>>         I'm looking for a Boolean operation (UNION, INTERSECTION,
>>         DIFFERENCE) to
>>         apply on two vtkPolyData.
>>         It should return a new vtkPolyData with the result of the
>>         operation.
>>
>>         My current search results are:
>>
>>         - vtkPolyBoolean from the Slicer 2 cvs
>>         - vtkImplicitPolyData from
>>         http://www.science.uva.nl/~dshamoni/Boolean/
>>         <http://www.science.uva.nl/%7Edshamoni/Boolean/>
>>         - vtkBooleanStructuredPoints ( obsolete and as the name says
>>         just for
>>         structured points)
>>         - vtkImplicitBoolean which doesn't handle PolyData ?!
>>
>>         But after a day of testing i still haven't found a method
>>         which works :-/
>>
>>         Anybody done that before ? Any hints ?
>>
>>
>>         Thanks in advance,
>>         Stefan
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>
>