/[escript]/trunk/pyvisi/examples/view2DMeshExample.py
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Contents of /trunk/pyvisi/examples/view2DMeshExample.py

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Revision 605 - (show annotations)
Mon Mar 20 07:16:27 2006 UTC (13 years, 6 months ago) by gross
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pyvisi with vtk runs noe on the altix
1 # Copyright (C) 2004 Paul Cochrane
2 #
3 # This program is free software; you can redistribute it and/or
4 # modify it under the terms of the GNU General Public License
5 # as published by the Free Software Foundation; either version 2
6 # of the License, or (at your option) any later version.
7 #
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
12 #
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16
17 # $Id: view2DMeshExample.py,v 1.3 2005/02/08 08:27:26 paultcochrane Exp $
18
19 ## @file view2DMeshExample.py
20
21 """
22 Example of loading a two-dimensional mesh into pyvisi and viewing it
23
24 Will hopefully help me write a decent interface.
25 """
26
27 import sys,os
28
29 # this means that one can run the script from the examples directory
30 sys.path.append('../')
31
32 # import the python visualisation interface
33 from esys.pyvisi import *
34 # import vtk stuff
35 from esys.pyvisi.renderers.vtk import *
36
37 # start a scene, using vtk as the renderer
38 scene = Scene()
39 scene.setSize()
40 scene.setBackgroundColor(0,0,0)
41
42 # render the scene
43 scene.render(pause=True)
44
45 # put an exit in here so that we don't run the vtk code
46 sys.exit()
47
48 # here is the original vtk code
49
50 import vtk
51
52 # set up the renderer and render window
53 _renderer = vtk.vtkRenderer()
54 _renderWindow = vtk.vtkRenderWindow()
55 _renderWindow.AddRenderer(_renderer)
56 _renderWindow.SetSize(1024,768)
57 _renderer.SetBackground(0,0,0)
58
59 # load the jpeg file
60 _jpegReader = vtk.vtkJPEGReader()
61 _jpegReader.SetFileName("Flinders_eval.jpg")
62
63 # set the jpeg file to the texture
64 _tex = vtk.vtkTexture()
65 _tex.SetInput(_jpegReader.GetOutput())
66
67 # get the plane and add it to the "scene"
68 _plane = vtk.vtkPlaneSource()
69 _planeMapper = vtk.vtkPolyDataMapper()
70 _planeMapper.SetInput(_plane.GetOutput())
71 _planeActor = vtk.vtkActor()
72 _planeActor.SetMapper(_planeMapper)
73 _planeActor.SetTexture(_tex)
74 _renderer.AddActor(_planeActor)
75
76 # set up a camera
77 _camera = vtk.vtkCamera()
78 _camera.SetFocalPoint(0,0,0)
79 _camera.SetPosition(1,1,1)
80 _camera.ComputeViewPlaneNormal()
81 _camera.SetViewUp(1,0,0)
82 _camera.OrthogonalizeViewUp()
83
84 _renderer.SetActiveCamera(_camera)
85 _renderer.ResetCamera()
86
87 # now see what was produced
88 _renderWindow.Render()
89
90 raw_input("Press enter to continue")
91
92

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