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72 lines
2.3 KiB
72 lines
2.3 KiB
#!/usr/bin/env python
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#
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# This example creates a polygonal model of a cone, and then renders it to
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# the screen. It will rotate the cone 360 degrees and then exit. The basic
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# setup of source -> mapper -> actor -> renderer -> renderwindow is
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# typical of most VTK programs.
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#
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#
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# First we include the VTK Python packages that will make available
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# all of the VTK commands to Python.
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#
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import vtk
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import time
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#
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# Next we create an instance of vtkConeSource and set some of its
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# properties. The instance of vtkConeSource "cone" is part of a visualization
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# pipeline (it is a source process object); it produces data (output type is
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# vtkPolyData) which other filters may process.
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#
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cone = vtk.vtkConeSource()
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cone.SetHeight( 3.0 )
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cone.SetRadius( 1.0 )
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cone.SetResolution( 10 )
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#
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# In this example we terminate the pipeline with a mapper process object.
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# (Intermediate filters such as vtkShrinkPolyData could be inserted in
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# between the source and the mapper.) We create an instance of
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# vtkPolyDataMapper to map the polygonal data into graphics primitives. We
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# connect the output of the cone souece to the input of this mapper.
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#
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coneMapper = vtk.vtkPolyDataMapper()
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coneMapper.SetInputConnection( cone.GetOutputPort() )
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#
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# Create an actor to represent the cone. The actor orchestrates rendering of
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# the mapper's graphics primitives. An actor also refers to properties via a
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# vtkProperty instance, and includes an internal transformation matrix. We
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# set this actor's mapper to be coneMapper which we created above.
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#
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coneActor = vtk.vtkActor()
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coneActor.SetMapper( coneMapper )
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#
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# Create the Renderer and assign actors to it. A renderer is like a
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# viewport. It is part or all of a window on the screen and it is
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# responsible for drawing the actors it has. We also set the background
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# color here
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#
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ren1= vtk.vtkRenderer()
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ren1.AddActor( coneActor )
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ren1.SetBackground( 0.1, 0.2, 0.4 )
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#
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# Finally we create the render window which will show up on the screen
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# We put our renderer into the render window using AddRenderer. We also
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# set the size to be 300 pixels by 300
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#
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renWin = vtk.vtkRenderWindow()
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renWin.AddRenderer( ren1 )
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renWin.SetSize( 300, 300 )
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#
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# now we loop over 360 degreeees and render the cone each time
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#
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for i in range(0,360):
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time.sleep(0.03)
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renWin.Render()
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ren1.GetActiveCamera().Azimuth( 1 )
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