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

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Revision 1384 - (hide annotations)
Fri Jan 11 02:29:38 2008 UTC (12 years ago) by phornby
Original Path: temp_trunk_copy/doc/examples/pyvisi/velocityonplanecut.py
File MIME type: text/x-python
File size: 1371 byte(s)
Make a temp copy of the trunk before checking in the windows changes


1 jongui 1203 """
2     Author: John Ngui, john.ngui@uq.edu.au
3     """
4    
5 ksteube 1147 # Import the necessary modules
6     from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
7     from esys.pyvisi.constant import *
8 jongui 1148 import os
9 ksteube 1147
10 jongui 1148 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
11     PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
12 ksteube 1147 X_SIZE = 400
13     Y_SIZE = 400
14    
15     VECTOR_FIELD_CELL_DATA = "velocity"
16     FILE_3D = "interior_3D.xml"
17     IMAGE_NAME = "velocity.jpg"
18     JPG_RENDERER = Renderer.ONLINE_JPG
19    
20 jongui 1210 # Create a Scene.
21 ksteube 1147 s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
22     y_size = Y_SIZE)
23    
24     # Create a DataCollector reading from a XML file.
25     dc1 = DataCollector(source = Source.XML)
26 jongui 1148 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
27 ksteube 1147 dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)
28    
29     # Create VelocityOnPlaneCut.
30     vopc1 = VelocityOnPlaneCut(scene = s, data_collector = dc1,
31     viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.VECTOR,
32     arrow = Arrow.THREE_D, lut = Lut.COLOR, cell_to_point = False,
33     outline = True)
34     vopc1.setScaleFactor(scale_factor = 0.5)
35     vopc1.setPlaneToXY(offset = 0.5)
36     vopc1.setRatio(2)
37     vopc1.randomOn()
38    
39     # Create a Camera.
40 jongui 1148 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
41 ksteube 1147 c1.isometricView()
42     c1.elevation(angle = -20)
43    
44     # Render the object.
45 jongui 1148 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))
46 ksteube 1147

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