[Paraview-developers] Strange Problem with vtkKdTreePointLocator

[Amit Prabhakar]

Hello All!


I am facing a strange problem with vtkKdTreePointLocator class that says:

ERROR : In /path/to/VTK-build/Common/DataModel/vtkLocator.cxx line 49
vtkPointLocator (0xf132d0): Input Not set


I am setting the vtkKdtreePointLocator using a polydata. The poly data get 2-3 points and a cell added to it, in a for loop. After every loop operation, we update the poly data, the kdtreelocator and BuildLocator().

vtkKdTreePontLocator *kdt = vtkKdTreePointLocator::New();
kdt->SetDataSet(polydata_new);

for(int i=0;i<1000;i++)
{
	….  //the operations to add a few points and a cell to polydata_new 
	<check if there is a point in kdt that if near-enough to an arbitrary point. Do some point insertion to polydata_new>

	kdt->SetDataSet(polydata_new);
	kdt->BuildLocator();
	kdt->Update();


}


This seems like a simple operation, but am not able to figure out why this happens. Your help can put my brains straight.

Thanks in advance!
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