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56 lines
1.8 KiB
56 lines
1.8 KiB
#!/usr/bin/env python
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# This simple example shows how to do basic rendering and pipeline
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# creation.
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import vtk
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# The colors module defines various useful colors.
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from vtk.util.colors import tomato
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# This creates a polygonal cylinder model with eight circumferential
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# facets.
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cylinder = vtk.vtkCylinderSource()
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cylinder.SetResolution(8)
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# The mapper is responsible for pushing the geometry into the graphics
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# library. It may also do color mapping, if scalars or other
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# attributes are defined.
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cylinderMapper = vtk.vtkPolyDataMapper()
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cylinderMapper.SetInputConnection(cylinder.GetOutputPort())
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# The actor is a grouping mechanism: besides the geometry (mapper), it
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# also has a property, transformation matrix, and/or texture map.
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# Here we set its color and rotate it -22.5 degrees.
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cylinderActor = vtk.vtkActor()
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cylinderActor.SetMapper(cylinderMapper)
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cylinderActor.GetProperty().SetColor(tomato)
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cylinderActor.RotateX(30.0)
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cylinderActor.RotateY(-45.0)
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# Create the graphics structure. The renderer renders into the render
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# window. The render window interactor captures mouse events and will
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# perform appropriate camera or actor manipulation depending on the
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# nature of the events.
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ren = vtk.vtkRenderer()
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renWin = vtk.vtkRenderWindow()
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renWin.AddRenderer(ren)
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iren = vtk.vtkRenderWindowInteractor()
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iren.SetRenderWindow(renWin)
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# Add the actors to the renderer, set the background and size
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ren.AddActor(cylinderActor)
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ren.SetBackground(0.1, 0.2, 0.4)
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renWin.SetSize(200, 200)
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# This allows the interactor to initalize itself. It has to be
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# called before an event loop.
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iren.Initialize()
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# We'll zoom in a little by accessing the camera and invoking a "Zoom"
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# method on it.
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ren.ResetCamera()
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ren.GetActiveCamera().Zoom(1.5)
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renWin.Render()
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# Start the event loop.
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iren.Start()
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