[vtkusers] VTK Contour Widget Problem

[Gishara Indeewarie]

Hi all,

I am doing a VTK contour widget with control points.
My problem is that the control points and the contour is visible when I am
using vtk 5.8 libs.
But when I move to vtk 5.0 I can't see it.
I want to use it in vtk 5.0 because the project I am working now uses 5.0.
Below is my code.

#include <vtkSmartPointer.h>
#include <vtkProperty.h>
#include <vtkContourWidget.h>
#include <vtkOrientedGlyphContourRepresentation.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkCommand.h>
#include <vtkRegressionTestImage.h>
#include <vtkDebugLeaks.h>
#include <vtkTestUtilities.h>
#include <vtkCamera.h>
#include <vtkPlane.h>
#include <vtkPolyData.h>
#include <vtkCellArray.h>
#include <vtkPoints.h>
#include <vtkMath.h>
#include <vtkWidgetEvent.h>
#include <vtkWidgetEventTranslator.h>
#include <vtkInteractorStyleImage.h>

int main( int argc, char *argv[] )
{
  // Create the RenderWindow, Renderer and both Actors
  //
  vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  vtkSmartPointer<vtkRenderWindowInteractor> interactor =
      vtkSmartPointer<vtkRenderWindowInteractor>::New();
  interactor->SetRenderWindow(renderWindow);

  renderer->SetBackground(0.1, 0.2, 0.4);
  renderWindow->SetSize(600, 600);

  vtkSmartPointer<vtkOrientedGlyphContourRepresentation> contourRep =
      vtkSmartPointer<vtkOrientedGlyphContourRepresentation>::New();
  contourRep->GetLinesProperty()->SetColor(1, 0, 0); //set color to red

  vtkSmartPointer<vtkContourWidget> contourWidget =
      vtkSmartPointer<vtkContourWidget>::New();
  contourWidget->SetInteractor(interactor);
  contourWidget->SetRepresentation(contourRep);
  contourWidget->On();

  vtkSmartPointer<vtkPolyData> pd = vtkSmartPointer<vtkPolyData>::New();

  vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
  vtkSmartPointer<vtkCellArray> lines =
vtkSmartPointer<vtkCellArray>::New();
  vtkIdType* lineIndices = new vtkIdType[3];

    points->InsertPoint(static_cast<vtkIdType>(0), 100,
                        315,0.0 );
    lineIndices[0] = static_cast<vtkIdType>(0);

    points->InsertPoint(static_cast<vtkIdType>(1), 160,
                        285,0.0 );
    lineIndices[1] = static_cast<vtkIdType>(1);

    points->InsertPoint(static_cast<vtkIdType>(2), 210,
                        315,0.0 );
    lineIndices[2] = static_cast<vtkIdType>(2);

  lines->InsertNextCell(3,lineIndices);
  delete [] lineIndices;
  pd->SetPoints(points);
  pd->SetLines(lines);

  contourWidget->Initialize(pd);
  contourWidget->Render();
  renderer->ResetCamera();
  renderWindow->Render();

  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  vtkSmartPointer<vtkInteractorStyleImage> style =
    vtkSmartPointer<vtkInteractorStyleImage>::New();

  interactor->SetInteractorStyle(style);

  interactor->Initialize();
  interactor->Start();

  contourWidget->Off();

  return EXIT_SUCCESS;
}

Thanks a lot.
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