[vtkusers] How to use vtkDelaunay2D and visualize it?

[Bo Shi]

Dear all,

        Recently I want to triangulate the unorganized points and visualize
it, the source code is as follows:

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    for (int n=0;n<numOfPoints;n++)
    {
        libraryFile.Read(p,24);
        m_ppoints->InsertPoint(n,p[0],p[1],p[2]);
        m_pPtsId[n] = n;
    }

    m_libraryPolydata->SetPoints(m_ppoints);
   m_cellArray->InsertNextCell(numOfPoints, m_pPtsId);
    m_libraryPolydata->SetVerts(m_cellArray);

    m_pDelaunay2D->SetInput(m_libraryPolydata);
    m_pEdges->SetInput(m_pDelaunay2D->GetOutput());

    m_pTubeFilter->SetInput(m_pEdges->GetOutput());
    m_pTubeFilter->SetRadius(0.0050);

    libraryMapper->SetInput(m_pTubeFilter->GetOutput());


    this->libraryActor->SetMapper(libraryMapper);

    libraryActor->GetProperty()->SetColor(1.0,0.0,0.0);

    this->ren->AddActor(this->libraryActor);


////////////////////////////////////////////////////////////////////////////////////////////////////////////



    but when I compiled and executed the program I only found the black
screen,in other words, I didn't get the triangulated mesh.

    who can tell me why? And give me some detailed source code about how to
use the vtkDelaunay2D. Thanks a lot!



BHS
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