/[escript]/trunk/doc/examples/pyvisi/velocityonplanecut.py
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Annotation of /trunk/doc/examples/pyvisi/velocityonplanecut.py

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Revision 1811 - (hide annotations)
Thu Sep 25 23:11:13 2008 UTC (10 years, 6 months ago) by ksteube
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1 ksteube 1811
2     ########################################################
3     #
4     # Copyright (c) 2003-2008 by University of Queensland
5     # Earth Systems Science Computational Center (ESSCC)
6     # http://www.uq.edu.au/esscc
7     #
8     # Primary Business: Queensland, Australia
9     # Licensed under the Open Software License version 3.0
10     # http://www.opensource.org/licenses/osl-3.0.php
11     #
12     ########################################################
13    
14     __copyright__="""Copyright (c) 2003-2008 by University of Queensland
15     Earth Systems Science Computational Center (ESSCC)
16     http://www.uq.edu.au/esscc
17     Primary Business: Queensland, Australia"""
18     __license__="""Licensed under the Open Software License version 3.0
19     http://www.opensource.org/licenses/osl-3.0.php"""
20     __url__="http://www.uq.edu.au/esscc/escript-finley"
21    
22 jongui 1203 """
23     Author: John Ngui, john.ngui@uq.edu.au
24     """
25    
26 ksteube 1147 # Import the necessary modules
27     from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
28     from esys.pyvisi.constant import *
29 jongui 1148 import os
30 ksteube 1147
31 jongui 1148 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
32     PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
33 ksteube 1147 X_SIZE = 400
34     Y_SIZE = 400
35    
36     VECTOR_FIELD_CELL_DATA = "velocity"
37     FILE_3D = "interior_3D.xml"
38     IMAGE_NAME = "velocity.jpg"
39     JPG_RENDERER = Renderer.ONLINE_JPG
40    
41 jongui 1210 # Create a Scene.
42 ksteube 1147 s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
43     y_size = Y_SIZE)
44    
45     # Create a DataCollector reading from a XML file.
46     dc1 = DataCollector(source = Source.XML)
47 jongui 1148 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
48 ksteube 1147 dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)
49    
50     # Create VelocityOnPlaneCut.
51     vopc1 = VelocityOnPlaneCut(scene = s, data_collector = dc1,
52     viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.VECTOR,
53     arrow = Arrow.THREE_D, lut = Lut.COLOR, cell_to_point = False,
54     outline = True)
55     vopc1.setScaleFactor(scale_factor = 0.5)
56     vopc1.setPlaneToXY(offset = 0.5)
57     vopc1.setRatio(2)
58     vopc1.randomOn()
59    
60     # Create a Camera.
61 jongui 1148 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
62 ksteube 1147 c1.isometricView()
63     c1.elevation(angle = -20)
64    
65     # Render the object.
66 jongui 1148 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))
67 ksteube 1147

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