[vtkusers] vtkDelaunay2D crash depending on ProjectionPlaneMode

[jimmigoo]

Hi all.

I found a crash on vtkDelaunay2D filter, using VTK 6.1.0.

This crash happened leaving the default ProjectionPlaneMode default value
(VTK_DELAUNAY_XY_PLANE) and it didn't happen if I set the other
ProjectionPlaneMode (VTK_BEST_FITTING_PLANE) before calling
vtkDelaunay2D::Update() method.

This if the source code example I ran to detect the crash

---
   double l_dPos[3];

   vtkPoints* l_pGridPoints = vtkPoints::New();

   // first point
   l_dPos[0] = 23926.000000000000;
   l_dPos[1] = 69452.000000000000;
   l_dPos[2] = 2652.8683108524156;

   l_pGridPoints->InsertNextPoint(l_dPos[0], l_dPos[1], l_dPos[2]);

   // second point
   l_dPos[0] = 23926.000000000000;
   l_dPos[1] = 69456.000000000000;
   l_dPos[2] = 2641.0437485351772;

   l_pGridPoints->InsertNextPoint(l_dPos[0], l_dPos[1], l_dPos[2]);

   // third point
   l_dPos[0] = 23930.000000000000;
   l_dPos[1] = 69456.000000000000;
   l_dPos[2] = 2639.1668187815949;

   l_pGridPoints->InsertNextPoint(l_dPos[0], l_dPos[1], l_dPos[2]);

   // fourth point
   l_dPos[0] = 23934.000000000000;
   l_dPos[1] = 69460.000000000000;
   l_dPos[2] = 2634.7293168310453;

   l_pGridPoints->InsertNextPoint(l_dPos[0], l_dPos[1], l_dPos[2]);

   // fifth point

   l_dPos[0] = 23938.000000000000;
   l_dPos[1] = 69464.000000000000;
   l_dPos[2] = 2633.4773374108199;

   l_pGridPoints->InsertNextPoint(l_dPos[0], l_dPos[1], l_dPos[2]);

   vtkPolyData* l_pGridPolyData = vtkPolyData::New();
   l_pGridPolyData->SetPoints(l_pGridPoints);

   vtkDelaunay2D* l_pDelaunay2D = vtkDelaunay2D::New();
   l_pDelaunay2D->SetInputData(l_pGridPolyData);
   l_pDelaunay2D->Update();

-----

Could you help me to understand how to not obtain algorithm crash leaving
VTK_DELAUNAY_XY_PLANE as ProjectionPlaneMode? My doubt is to obtain more
increased algorithm times setting VTK_BEST_FITTING_PLANE.

I'm looking for your kind reply

Best Regards, 

jimmigoo



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