[vtkusers] vtkPointLocator Problem

[Bill Lorensen]

Have you looked at this example:
http://www.vtk.org/Wiki/VTK/Examples/PointLocator_Radius


On Tue, Jun 8, 2010 at 4:49 PM, A. Burak Yoldemir <yoldemir at gmail.com> wrote:
> Hello all,
>
> I am having a problem with FindPointsWithinRadius function of
> vtkPointLocator class. I have a bunch of points in a certain volume, with no
> specific topology. Using the following code snippet, I create a point
> locator object and specify its data set:
>
> vtkPoints* edge_pts = vtkPoints::New();
>
> for(int i = 0; i < someLimit; i++)
>
> {
>
> edge_pts->InsertNextPoint(somePoint);
>
> }
>
> vtkPolyData* edge_pts_set = vtkPolyData::New();
>
> edge_pts_set->SetPoints(edge_pts);
>
> edge_pts_set->Update();
>
> vtkPointLocator* NeighborLocator = vtkPointLocator::New();
>
> NeighborLocator->SetDataSet(edge_pts_set);
>
> NeighborLocator->BuildLocator();
>
> Then, I use the FindPointsWithinRadius function of NeighborLocator, where I
> (manually) made sure that there are several neighbors of the query point.
> However, the aforementioned function returns no neighbors. Any ideas on
> where the problem could be?
>
> Regards,
>
>
> Burak
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