Hi Federico,
You have to create some vertex cells. So use a polydata or unstructured
grid instead of pointset. Polydata is the easier you'd make a cell array
like this: 1 0 1 1 1 2 ... 1 n where n is the number of points, and add
this with SetVerts method. You won't have to use the Delaunay filter to
see this.
Burlen
On 08/18/2011 09:54 AM, Federico Milano wrote:
Hi. I want to show a colored point cloud (vtkPointSet) returning from
a custom filter. In my custom filter, I prepare the pointCloud in this
way:
vtkSmartPointer<vtkPointSet> pointCloud =
vtkSmartPointer<vtkPolyData>::New();
pointCloud->SetPoints(points);
pointCloud->GetPointData()->SetScalars(distances);
pointCloud->Update();
output->DeepCopy(pointCloud);
points is a vtkPoints and distances is a vtkDoubleArray.
The problem is that nothing is showing. If instead of using a
vtkPointSet I use a vtkPolyData and filter it with a vtkDelaunay2D, it
shows some points, but other points are left out (Do you know why is
this happening?). If I use a vtkDelaunay3D, again, I see nothing.
Do you know why is this happening? What do you recommend to build
point clouds?
I would really appreciate any suggestion.
Thanks in advance,
Federico
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