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

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Revision 1811 - (show annotations)
Thu Sep 25 23:11:13 2008 UTC (10 years, 3 months ago) by ksteube
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1
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 """
23 Author: John Ngui, john.ngui@uq.edu.au
24 """
25
26 # Import the necessary modules
27 from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
28 from esys.pyvisi.constant import *
29 import os
30
31 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
32 PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
33 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 # Create a Scene.
42 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 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
48 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 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
62 c1.isometricView()
63 c1.elevation(angle = -20)
64
65 # Render the object.
66 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))
67

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