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#!/usr/bin/env python
import os
import vtk
from vtk.util.misc import vtkGetDataRoot
from vtk.util.misc import vtkGetTempDir
VTK_DATA_ROOT = vtkGetDataRoot()
VTK_TEMP_DIR = vtkGetTempDir()
file0 = VTK_TEMP_DIR + '/idFile0.vtp'
file1 = VTK_TEMP_DIR + '/idFile1.vtp'
file2 = VTK_TEMP_DIR + '/idFile2.vtp'
# read in some poly data
pdReader = vtk.vtkPolyDataReader()
pdReader.SetFileName(VTK_DATA_ROOT + "/Data/fran_cut.vtk")
pdReader.Update()
extract = vtk.vtkExtractPolyDataPiece()
extract.SetInputConnection(pdReader.GetOutputPort())
# write various versions
pdWriter = vtk.vtkXMLPolyDataWriter()
pdWriter.SetFileName(file0)
pdWriter.SetDataModeToAscii()
pdWriter.SetInputConnection(pdReader.GetOutputPort())
pdWriter.Write()
pdWriter.SetFileName(file1)
pdWriter.SetInputConnection(extract.GetOutputPort())
pdWriter.SetDataModeToAppended()
pdWriter.SetNumberOfPieces(2)
pdWriter.Write()
pdWriter.SetFileName(file2)
pdWriter.SetDataModeToBinary()
pdWriter.SetGhostLevel(3)
pdWriter.Write()
# read the ASCII version
reader = vtk.vtkXMLPolyDataReader()
reader.SetFileName(file0)
reader.Update()
pd0 = vtk.vtkPolyData()
pd0.DeepCopy(reader.GetOutput())
mapper0 = vtk.vtkPolyDataMapper()
mapper0.SetInputData(pd0)
actor0 = vtk.vtkActor()
actor0.SetMapper(mapper0)
actor0.SetPosition(0, .15, 0)
# read appended piece 0
reader.SetFileName(file1)
mapper1 = vtk.vtkPolyDataMapper()
mapper1.SetInputConnection(reader.GetOutputPort())
mapper1.SetPiece(0)
mapper1.SetNumberOfPieces(2)
actor1 = vtk.vtkActor()
actor1.SetMapper(mapper1)
# read binary piece 0 (with ghost level)
reader2 = vtk.vtkXMLPolyDataReader()
reader2.SetFileName(file2)
mapper2 = vtk.vtkPolyDataMapper()
mapper2.SetInputConnection(reader2.GetOutputPort())
mapper2.SetPiece(0)
mapper2.SetNumberOfPieces(2)
actor2 = vtk.vtkActor()
actor2.SetMapper(mapper2)
actor2.SetPosition(0, 0, 0.1)
# Create the RenderWindow, Renderer and both Actors
#
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# Add the actors to the renderer, set the background and size
#
ren.AddActor(actor0)
ren.AddActor(actor1)
ren.AddActor(actor2)
ren.GetActiveCamera().SetPosition(0.514096, -0.14323, -0.441177)
ren.GetActiveCamera().SetFocalPoint(0.0528, -0.0780001, -0.0379661)
renWin.SetSize(300, 300)
renWin.Render()
os.remove(file0)
os.remove(file1)
os.remove(file2)
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