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56 lines
1.5 KiB
56 lines
1.5 KiB
#!/usr/bin/env python
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# This example demonstrates the use of 2D text.
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import vtk
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# Create a sphere source, mapper, and actor
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sphere = vtk.vtkSphereSource()
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sphereMapper = vtk.vtkPolyDataMapper()
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sphereMapper.SetInputConnection(sphere.GetOutputPort())
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sphereMapper.GlobalImmediateModeRenderingOn()
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sphereActor = vtk.vtkLODActor()
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sphereActor.SetMapper(sphereMapper)
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# Create a scaled text actor.
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# Set the text, font, justification, and properties (bold, italics,
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# etc.).
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textActor = vtk.vtkTextActor()
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textActor.ScaledTextOn()
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textActor.SetDisplayPosition(90, 50)
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textActor.SetInput("This is a sphere")
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# Set coordinates to match the old vtkScaledTextActor default value
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textActor.GetPosition2Coordinate().SetCoordinateSystemToNormalizedViewport()
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textActor.GetPosition2Coordinate().SetValue(0.6, 0.1)
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tprop = textActor.GetTextProperty()
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tprop.SetFontSize(18)
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tprop.SetFontFamilyToArial()
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tprop.SetJustificationToCentered()
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tprop.BoldOn()
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tprop.ItalicOn()
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tprop.ShadowOn()
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tprop.SetColor(0, 0, 1)
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# Create the Renderer, RenderWindow, RenderWindowInteractor
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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; zoom
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# in; and render.
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ren.AddActor2D(textActor)
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ren.AddActor(sphereActor)
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ren.SetBackground(1, 1, 1)
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renWin.SetSize(250, 125)
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ren.ResetCamera()
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ren.GetActiveCamera().Zoom(1.5)
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iren.Initialize()
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renWin.Render()
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iren.Start()
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