# StripFran

VTKExamples/Python/Rendering/StripFran

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### Code

StripFran.py

    #!/usr/bin/env python

    """
    """

    import vtk

    def main():
        colors = vtk.vtkNamedColors()

        fileName = get_program_parameters()

        renderer1 = vtk.vtkRenderer()
        renderer1.SetViewport(0.0, 0.0, 0.5, 1.0)

        renderer2 = vtk.vtkRenderer()
        renderer2.SetViewport(0.5, 0.0, 1.0, 1.0)

        renderWindow = vtk.vtkRenderWindow()
        renderWindow.AddRenderer(renderer1)
        renderWindow.AddRenderer(renderer2)

        interactor = vtk.vtkRenderWindowInteractor()
        interactor.SetRenderWindow(renderWindow)

        # Create a cyberware source.
        #
        cyber = vtk.vtkPolyDataReader()
        cyber.SetFileName(fileName)

        deci = vtk.vtkDecimatePro()
        deci.SetInputConnection(cyber.GetOutputPort())
        deci.SetTargetReduction(0.7)
        deci.PreserveTopologyOn()

        normals = vtk.vtkPolyDataNormals()
        normals.SetInputConnection(deci.GetOutputPort())

        mask = vtk.vtkMaskPolyData()
        mask.SetInputConnection(deci.GetOutputPort())
        mask.SetOnRatio(2)

        cyberMapper = vtk.vtkPolyDataMapper()
        cyberMapper.SetInputConnection(mask.GetOutputPort())

        cyberActor = vtk.vtkActor()
        cyberActor.SetMapper(cyberMapper)
        cyberActor.GetProperty().SetColor(colors.GetColor3d("Flesh"))

        stripper = vtk.vtkStripper()
        stripper.SetInputConnection(cyber.GetOutputPort())

        stripperMask = vtk.vtkMaskPolyData()
        stripperMask.SetInputConnection(stripper.GetOutputPort())
        stripperMask.SetOnRatio(2)

        stripperMapper = vtk.vtkPolyDataMapper()
        stripperMapper.SetInputConnection(stripperMask.GetOutputPort())

        stripperActor = vtk.vtkActor()
        stripperActor.SetMapper(stripperMapper)
        stripperActor.GetProperty().SetColor(colors.GetColor3d("Flesh"))

        # Add the actors to the renderer, set the background and size.
        #
        renderer1.AddActor(stripperActor)
        renderer2.AddActor(cyberActor)
        renderer1.SetBackground(colors.GetColor3d("Wheat"))
        renderer2.SetBackground(colors.GetColor3d("Papaya_Whip"))
        renderWindow.SetSize(1024, 640)

        # Render the image.
        #
        cam1 = vtk.vtkCamera()
        cam1.SetFocalPoint(0, 0, 0)
        cam1.SetPosition(1, 0, 0)
        cam1.SetViewUp(0, 1, 0)
        renderer1.SetActiveCamera(cam1)
        renderer2.SetActiveCamera(cam1)
        renderer1.ResetCamera()
        cam1.Azimuth(30)
        cam1.Elevation(30)
        cam1.Dolly(1.4)
        renderer1.ResetCameraClippingRange()

        interactor.Start()

    def get_program_parameters():
        import argparse
        description = 'Triangle strip examples.'
        epilogue = '''
        a) Structured triangle mesh consisting of 134 strips each of 390 triangles (stripF.tcl).

        b) Unstructured triangle mesh consisting of 2227 strips of average length 3.94,
            longest strip 101 triangles.
            Images are generated by displaying every other triangle strip (uStripeF.tcl).
        '''
        parser = argparse.ArgumentParser(description=description, epilog=epilogue,
                                         formatter_class=argparse.RawDescriptionHelpFormatter)
        parser.add_argument('filename1', help='fran_cut.vtk.')
        args = parser.parse_args()
        return args.filename1

    if __name__ == '__main__':
        main()