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59 lines
1.7 KiB
59 lines
1.7 KiB
2 years ago
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#!/usr/bin/env python
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# This example shows how to combine data from both the imaging and
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# graphics pipelines. The vtkMergeFilter is used to merge the data
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# from each together.
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import vtk
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from vtk.util.misc import vtkGetDataRoot
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VTK_DATA_ROOT = vtkGetDataRoot()
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# Read in an image and compute a luminance value. The image is
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# extracted as a set of polygons (vtkImageDataGeometryFilter). We then
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# will warp the plane using the scalar (luminance) values.
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reader = vtk.vtkBMPReader()
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reader.SetFileName(VTK_DATA_ROOT + "/Data/masonry.bmp")
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luminance = vtk.vtkImageLuminance()
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luminance.SetInputConnection(reader.GetOutputPort())
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geometry = vtk.vtkImageDataGeometryFilter()
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geometry.SetInputConnection(luminance.GetOutputPort())
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warp = vtk.vtkWarpScalar()
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warp.SetInputConnection(geometry.GetOutputPort())
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warp.SetScaleFactor(-0.1)
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# Use vtkMergeFilter to combine the original image with the warped
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# geometry.
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merge = vtk.vtkMergeFilter()
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merge.SetGeometry(warp.GetOutput())
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merge.SetScalars(reader.GetOutput())
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mapper = vtk.vtkDataSetMapper()
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mapper.SetInputConnection(merge.GetOutputPort())
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mapper.SetScalarRange(0, 255)
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mapper.ImmediateModeRenderingOff()
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actor = vtk.vtkActor()
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actor.SetMapper(mapper)
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# Create renderer stuff
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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(actor)
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ren.ResetCamera()
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ren.GetActiveCamera().Azimuth(20)
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ren.GetActiveCamera().Elevation(30)
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ren.SetBackground(0.1, 0.2, 0.4)
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ren.ResetCameraClippingRange()
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renWin.SetSize(250, 250)
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cam1 = ren.GetActiveCamera()
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cam1.Zoom(1.4)
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iren.Initialize()
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renWin.Render()
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iren.Start()
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