[vtkusers] Obtain Points from Polydata

[Matias Montroull]

Ok, no success so far. So, following my code below:

  vtkPolyDataNormals skinnormals = vtkPolyDataNormals.New();
              skinnormals.SetInputConnection(skinextractor.GetOutputPort());
              skinnormals.SetFeatureAngle(90.0);
              skinnormals.ComputePointNormalsOn();

              vtkPolyData polys = new vtkPolyData();


              polys= skinnormals.GetOutput();
              polys.Update();
              polys.BuildCells();

              for (int i = 0; i < polys.GetNumberOfPoints(); i++)
              {
                  double[] p = new double[3];
                  p=polys.GetPoint(i);
              }
              vtkCellArray Cellarray = new vtkCellArray();
              Cellarray = polys.GetPolys();

              int numcells = Cellarray.GetNumberOfCells();

I see the number of cells but I'm not sure how to iterate through each Cell
and get the triangles points..}

Is there a C# example on how to use GetCellPoints??


On Wed, Jan 15, 2014 at 2:48 PM, Matias Montroull <matimontg at gmail.com>wrote:

> Yes, Cells.. I will take a look at those, thanks!
>
>
> On Wed, Jan 15, 2014 at 2:37 PM, lgriffiths <lgriffiths.aero at gmail.com>wrote:
>
>> By triangles I assume you mean the cells? You can use GetCell
>>
>> Take a look at GetPointCells and GetCellPoints, these will return The
>> cells
>> conntect to a point, or Points connected to a cell
>>
>> Remember to use polydata.BuildCells() or polydata.BuildLinks()
>>
>> Take a look here also if you want to loop over the connectivity:
>>
>> http://vtk.1045678.n5.nabble.com/Neighbours-of-a-point-in-a-mesh-td1236245.html#a1236246
>>
>>
>>
>>
>>
>> --
>> View this message in context:
>> http://vtk.1045678.n5.nabble.com/Obtain-Points-from-Polydata-tp5725372p5725414.html
>> Sent from the VTK - Users mailing list archive at Nabble.com.
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