ContourQuadric
VTKExamples/Python/VisualizationAlgorithms/ContourQuadric
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ContourQuadric.py
#!/usr/bin/env python import vtk def main(): colors = vtk.vtkNamedColors() aren = vtk.vtkRenderer() renWin = vtk.vtkRenderWindow() renWin.AddRenderer(aren) iren = vtk.vtkRenderWindowInteractor() iren.SetRenderWindow(renWin) # # Create surfaces F(x,y,z) = constant # # Sample quadric function quadric = vtk.vtkQuadric() quadric.SetCoefficients(.5, 1, .2, 0, .1, 0, 0, .2, 0, 0) sample = vtk.vtkSampleFunction() sample.SetSampleDimensions(50, 50, 50) sample.SetImplicitFunction(quadric) contour = vtk.vtkContourFilter() contour.SetInputConnection(sample.GetOutputPort()) contour.GenerateValues(5, 0, 1.2) contourMapper = vtk.vtkPolyDataMapper() contourMapper.SetInputConnection(contour.GetOutputPort()) contourMapper.SetScalarRange(0, 1.2) contourActor = vtk.vtkActor() contourActor.SetMapper(contourMapper) # Create outline outline = vtk.vtkOutlineFilter() outline.SetInputConnection(sample.GetOutputPort()) outlineMapper = vtk.vtkPolyDataMapper() outlineMapper.SetInputConnection(outline.GetOutputPort()) outlineActor = vtk.vtkActor() outlineActor.SetMapper(outlineMapper) outlineActor.GetProperty().SetColor(colors.GetColor3d("Brown")) outlineActor.GetProperty().SetLineWidth(3.0) # # Rendering stuff # aren.SetBackground(colors.GetColor3d("SlateGray")) aren.AddActor(contourActor) aren.AddActor(outlineActor) aren.ResetCamera() aren.GetActiveCamera().Azimuth(30) aren.GetActiveCamera().Elevation(30) renWin.SetSize(640, 512) renWin.Render() # interact with data iren.Start() if __name__ == '__main__': main()