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

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Revision 1205 - (hide annotations)
Fri Jun 29 04:44:04 2007 UTC (13 years, 8 months ago) by jongui
File MIME type: text/x-python
File size: 1257 byte(s)
- Fixed a minor bug in the Velocity module.
- Added the Rectangle module which enables rectangles to be created.
- Added corresponding examples and test cases for the Rectangle.
- Updated the guide and necessary epydocs.



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, StreamLine, 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 = "temperature"
16     FILE_3D = "interior_3D.xml"
17     IMAGE_NAME = "streamline.jpg"
18     JPG_RENDERER = Renderer.ONLINE_JPG
19    
20     # Create a Scene.
21     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
28     # Create a Streamline.
29     sl1 = StreamLine(scene = s, data_collector = dc1,
30     viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.SCALAR,
31     lut = Lut.COLOR, cell_to_point = False, outline = True)
32     sl1.setTubeRadius(radius = 0.02)
33 jongui 1158 sl1.setTubeNumberOfSides(3)
34 jongui 1205 sl1.setTubeRadiusToVaryByVector()
35     sl1.setPointSourceRadius(0.9)
36 ksteube 1147
37     # Create a Camera.
38 jongui 1148 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
39 ksteube 1147 c1.isometricView()
40    
41     # Render the object.
42 jongui 1148 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))

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