[vtk-developers] [Paraview] WG: endless loop in vtkOpenGLError

[Lodron, Gerald]

Hi

I am currently compiling vtk6-0-0 to check it but thanks for the hint of the test. I looked at it and copied the code to my test, and it worked. I found out that the endless loop also appears on the test if you add

  view->GetRenderer()->Render();

before

    view ->GetInteractor()->Initialize();

if you use
view->GetRendererWindow()->Render();
instead of
  view->GetRenderer()->Render();
it does not appear, strange behaviour...... I will test it in vtk6 when I compiled it, but for me it seems that pv 4.1 has a newer vtk version than 6.0 since all the SetInput functions were missing...

thanks
best regards,


Von: Burlen Loring [mailto:burlen.loring at gmail.com]
Gesendet: Montag, 09. Dezember 2013 22:25
An: Lodron, Gerald; Paraview Developer (Paraview-developers at paraview.org); Paraview User (paraview at paraview.org)
Betreff: Re: [Paraview] WG: endless loop in vtkOpenGLError

Hi Gerald,

your example isn't complete, also I had to make some substantial changes(based on the TestLinePlot.cxx ctest) it to get it to work. At any rate, to figure out if you're problem is self inflicted or not, to keep this simple use VTK and not PV for now, cd into a VTK build and run the following command:

ctest -R TestLinePlot --verbose

if those tests pass, then you can use TestLinePlot.cxx as an example of how it should be done. If they fail then that's something we can work with. report the test output from one of the failing tests. Once you figure out exactly what's going on, then try using VTK that's in PV.

Thanks
Burlen
On 12/09/2013 12:19 AM, Lodron, Gerald wrote:
vtkContextView* poContextView = vtkContextView::New();
    poContextView->GetRenderer()->SetBackground(1.0, 1.0, 1.0);

    vtkChartXY* poChart = vtkChartXY::New();
    poChart->GetAxis(1)->SetTitle( "xaxis" );
    poChart->GetAxis(0)->SetTitle( "yaxis" );
    poChart->SetTitle( "Title" );

    poContextView->GetScene()->AddItem(poChart);

    // Create a poTable with some points in it...
    vtkTable* poTable = vtkTable::New();

    vtkSmartPointer<vtkDoubleArray> oXAxis = vtkSmartPointer<vtkDoubleArray>::New();
    oXAxis->SetName("xaxis");
        poTable->AddColumn(oXAxis);

    //poTable->AddColumn(oXAxis);

    vtkSmartPointer<vtkDoubleArray> oPositionlot = vtkSmartPointer<vtkDoubleArray>::New();

    oPositionlot->SetName( "Data0" );
    poTable->AddColumn(oPositionlot);


    poTable->SetNumberOfRows( 10 );

    poContextView->GetRenderWindow()->SetMultiSamples(0);

    poTable->GetColumn(0)->SetName("col1");
    for ( size_t nRow = 0; nRow < 10; ++nRow )
    {
        poTable->SetValue(nRow, 0, 1);
    }

    vtkPlot * poPlot = poChart->AddPlot(vtkChart::LINE);
    poPlot->SetInputData(poTable, 0, 0);
    //poPlot->SetInput(m_poTable, 0, nColumn);
    poPlot->SetColor( 1, 0, 0, 1 );
    poPlot->SetWidth( 1 );
    poPlot->GetPen()->SetLineType(1);

     poContextView->GetRenderer()->Render();
     poContextView->GetInteractor()->Initialize();
    poContextView->GetInteractor()->Start();

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