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# Cutter

VTKEx/Python/VisualizationAlgorithms/Cutter

### Description

This example demonstrates how to use vtkCutter by cutting through a cube.

- Contributed by Jothy

Other languages

See (Cxx), (Java)

Question

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### Code

Cutter.py

    #!/usr/bin/env python

    # A simple script to demonstrate the vtkCutter function

    import vtk

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

        # Create a cube
        cube = vtk.vtkCubeSource()
        cube.SetXLength(40)
        cube.SetYLength(30)
        cube.SetZLength(20)
        cubeMapper = vtk.vtkPolyDataMapper()
        cubeMapper.SetInputConnection(cube.GetOutputPort())

        # create a plane to cut,here it cuts in the XZ direction (xz normal=(1,0,0);XY =(0,0,1),YZ =(0,1,0)
        plane = vtk.vtkPlane()
        plane.SetOrigin(10, 0, 0)
        plane.SetNormal(1, 0, 0)

        # create cutter
        cutter = vtk.vtkCutter()
        cutter.SetCutFunction(plane)
        cutter.SetInputConnection(cube.GetOutputPort())
        cutter.Update()
        cutterMapper = vtk.vtkPolyDataMapper()
        cutterMapper.SetInputConnection(cutter.GetOutputPort())

        # create plane actor
        planeActor = vtk.vtkActor()
        planeActor.GetProperty().SetColor(colors.GetColor3d("Yellow"))
        planeActor.GetProperty().SetLineWidth(2)
        planeActor.SetMapper(cutterMapper)

        # create cube actor
        cubeActor = vtk.vtkActor()
        cubeActor.GetProperty().SetColor(colors.GetColor3d("Aquamarine"))
        cubeActor.GetProperty().SetOpacity(0.3)
        cubeActor.SetMapper(cubeMapper)

        # create renderers and add actors of plane and cube
        ren = vtk.vtkRenderer()
        ren.AddActor(planeActor)
        ren.AddActor(cubeActor)

        # Add renderer to renderwindow and render
        renWin = vtk.vtkRenderWindow()
        renWin.AddRenderer(ren)
        renWin.SetSize(600, 600)
        iren = vtk.vtkRenderWindowInteractor()
        iren.SetRenderWindow(renWin)
        ren.SetBackground(colors.GetColor3d("Silver"))
        renWin.Render()

        iren.Start()

    if __name__ == '__main__':
        main()