ImageDataGeometryFilter
VTKExamples/Python/ImageData/ImageDataGeometryFilter
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Code¶
ImageDataGeometryFilter.py
#!/usr/bin/env python import vtk def main(): colors = vtk.vtkNamedColors() # Create an image source1 = vtk.vtkImageCanvasSource2D() source1.SetScalarTypeToUnsignedChar() source1.SetNumberOfScalarComponents(3) source1.SetExtent(0, 100, 0, 100, 0, 0) source1.SetDrawColor(0,0,0,1) source1.FillBox(0, 100, 0, 100) source1.SetDrawColor(255,0,0,1) source1.FillBox(10, 20, 10, 20) source1.FillBox(40, 50, 20, 30) source1.Update() # Convert the image to a polydata imageDataGeometryFilter = vtk.vtkImageDataGeometryFilter() imageDataGeometryFilter.SetInputConnection(source1.GetOutputPort()) imageDataGeometryFilter.Update() # Create a mapper and actor mapper = vtk.vtkPolyDataMapper() mapper.SetInputConnection(imageDataGeometryFilter.GetOutputPort()) actor = vtk.vtkActor() actor.SetMapper(mapper) # Visualization renderer = vtk.vtkRenderer() renderWindow = vtk.vtkRenderWindow() renderWindow.AddRenderer(renderer) renderWindowInteractor = vtk.vtkRenderWindowInteractor() renderWindowInteractor.SetRenderWindow(renderWindow) renderer.AddActor(actor) renderer.SetBackground(colors.GetColor3d("white")) # Background color white renderWindow.Render() renderWindowInteractor.Start() if __name__ == '__main__': main()