[vtkusers] clip STL surface

Martin Genet martin.genet at ucsfmedctr.org
Fri Feb 1 18:41:32 EST 2013

Thanks Bill!

For the record, I was able to that even more easily, using a 
vtkImplicitPolyDataDistance and then a vtkClipPolyData.


On 02/01/2013 08:34 AM, Bill Lorensen wrote:
> you should be able to run vtkContourFilter on the distance field. set
> the contour level to the distance threshold you desire.
> Bill
> On Thu, Jan 31, 2013 at 11:09 PM, Martin Genet
> <martin.genet at ucsfmedctr.org> wrote:
>> Dear VTK users,
>> I have two STL surfaces, say S1 & S2. I need to measure the area of the part
>> of S1 that's "close" to S2.
>> I thought of creating a third surface that would be a copy of S1 but without
>> the cells that are "too far away" from S2. I'm able to use
>> vtkDistancePolyDataFilter to create on S1 a field of distance to S2. But I
>> can't seem to find a way to "filter" S1 using this distance field and a
>> given threshold. Is there such a capability in vtk?
>> More generally, is there a better way to do what I need to do?
>> Thanks!
>> Martin
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