1#!/usr/bin/env python 2import vtk 3from vtk.test import Testing 4from vtk.util.misc import vtkGetDataRoot 5VTK_DATA_ROOT = vtkGetDataRoot() 6 7# read the football dataset: 8# 9reader = vtk.vtkUnstructuredGridReader() 10reader.SetFileName("" + str(VTK_DATA_ROOT) + "/Data/PentaHexa.vtk") 11reader.Update() 12# Clip 13# 14plane = vtk.vtkPlane() 15plane.SetNormal(1,1,0) 16clip = vtk.vtkClipDataSet() 17clip.SetInputConnection(reader.GetOutputPort()) 18clip.SetClipFunction(plane) 19clip.GenerateClipScalarsOn() 20g = vtk.vtkDataSetSurfaceFilter() 21g.SetInputConnection(clip.GetOutputPort()) 22map = vtk.vtkPolyDataMapper() 23map.SetInputConnection(g.GetOutputPort()) 24clipActor = vtk.vtkActor() 25clipActor.SetMapper(map) 26# Contour 27# 28contour = vtk.vtkContourFilter() 29contour.SetInputConnection(reader.GetOutputPort()) 30contour.SetValue(0,0.125) 31contour.SetValue(1,0.25) 32contour.SetValue(2,0.5) 33contour.SetValue(3,0.75) 34contour.SetValue(4,1.0) 35g2 = vtk.vtkDataSetSurfaceFilter() 36g2.SetInputConnection(contour.GetOutputPort()) 37map2 = vtk.vtkPolyDataMapper() 38map2.SetInputConnection(g2.GetOutputPort()) 39map2.ScalarVisibilityOff() 40contourActor = vtk.vtkActor() 41contourActor.SetMapper(map2) 42contourActor.GetProperty().SetColor(1,0,0) 43contourActor.GetProperty().SetRepresentationToWireframe() 44# Triangulate 45tris = vtk.vtkDataSetTriangleFilter() 46tris.SetInputConnection(reader.GetOutputPort()) 47shrink = vtk.vtkShrinkFilter() 48shrink.SetInputConnection(tris.GetOutputPort()) 49shrink.SetShrinkFactor(.8) 50map3 = vtk.vtkDataSetMapper() 51map3.SetInputConnection(shrink.GetOutputPort()) 52map3.SetScalarRange(0,26) 53triActor = vtk.vtkActor() 54triActor.SetMapper(map3) 55triActor.AddPosition(2,0,0) 56# Create graphics stuff 57# 58ren1 = vtk.vtkRenderer() 59renWin = vtk.vtkRenderWindow() 60renWin.SetMultiSamples(0) 61renWin.AddRenderer(ren1) 62iren = vtk.vtkRenderWindowInteractor() 63iren.SetRenderWindow(renWin) 64# Add the actors to the renderer, set the background and size 65# 66ren1.AddActor(clipActor) 67ren1.AddActor(contourActor) 68ren1.AddActor(triActor) 69ren1.SetBackground(1,1,1) 70renWin.Render() 71# render the image 72# 73iren.Initialize() 74renWin.Render() 75# prevent the tk window from showing up then start the event loop 76# --- end of script -- 77