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98 lines
2.8 KiB
98 lines
2.8 KiB
2 years ago
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#
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# This example demonstrates how to use multiple renderers within a
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# render window. It is a variation of the Cone.tcl example. Please
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# refer to that example for additional documentation.
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#
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#
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# First we include the VTK Tcl packages which will make available
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# all of the VTK commands to Tcl.
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#
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package require vtk
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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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vtkConeSource cone
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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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vtkPolyDataMapper coneMapper
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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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vtkActor coneActor
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coneActor SetMapper coneMapper
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#
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# Create two renderers and assign actors to them. A renderer renders into a
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# viewport within the vtkRenderWindow. It is part or all of a window on the
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# screen and it is responsible for drawing the actors it has. We also set
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# the background color here. In this example we are adding the same actor
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# to two different renderers; it is okay to add different actors to
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# different renderers as well.
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#
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vtkRenderer ren1
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ren1 AddActor coneActor
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ren1 SetBackground 0.1 0.2 0.4
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ren1 SetViewport 0.0 0.0 0.5 1.0
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vtkRenderer ren2
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ren2 AddActor coneActor
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ren2 SetBackground 0.1 0.2 0.4
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ren2 SetViewport 0.5 0.0 1.0 1.0
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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 add our two renderers into the render window using AddRenderer. We also
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# set the size to be 600 pixels by 300.
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#
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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renWin AddRenderer ren2
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renWin SetSize 600 300
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#
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# Make one camera view 90 degrees from other.
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#
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ren1 ResetCamera
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[ren1 GetActiveCamera] Azimuth 90
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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 {set i 0} {$i < 360} {incr i} {
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after 10
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# render the image
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renWin Render
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# rotate the active camera by one degree
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[ren1 GetActiveCamera] Azimuth 1
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[ren2 GetActiveCamera] Azimuth 1
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}
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#
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# Free up any objects we created.
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#
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vtkCommand DeleteAllObjects
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#
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# Exit the application.
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#
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exit
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