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

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Revision 1084 - (hide annotations)
Thu Apr 12 05:19:22 2007 UTC (12 years, 8 months ago) by jongui
File MIME type: text/x-python
File size: 2192 byte(s)
Updated the guide and fixed a minor bug with the use of the Camera.
1 jongui 1075 # Import the necessary modules.
2     from esys.pyvisi import Scene, DataCollector, Contour, Camera
3     from esys.pyvisi.constant import *
4    
5     PYVISI_EXAMPLE_MESHES_PATH = "data_meshes/"
6     PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images/"
7     X_SIZE = 400
8     Y_SIZE = 300
9    
10     SCALAR_FIELD_POINT_DATA_1 = "lava"
11     SCALAR_FIELD_POINT_DATA_2 = "talus"
12     FILE_2D = "phi_talus_lava."
13     FIRST_FILE_NAME = "phi_talus_lava.0099.vtu"
14    
15     IMAGE_NAME = "seriesofreads"
16     JPG_RENDERER = Renderer.ONLINE_JPG
17    
18 jongui 1081
19 jongui 1075 # Create a Scene.
20     s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
21     y_size = Y_SIZE)
22    
23 jongui 1084 # Create a DataCollector reading from a XML file. An initial file must always
24     # be assigned when the DataCollector is created, although the same file is
25     # read again in the for-loop.
26 jongui 1075 dc1 = DataCollector(source = Source.XML)
27     dc1.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FIRST_FILE_NAME)
28     dc1.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_1)
29    
30     # Create a Contour.
31     mosc1 = Contour(scene = s, data_collector = dc1,
32     viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR, cell_to_point = False,
33     outline = True)
34     mosc1.generateContours(0)
35    
36 jongui 1084 # Create a second DataCollector reading from the same XML file. An initial
37     # file must always be assigned when the DataCollector is created,
38     # although the same file is read again in the for-loop.
39 jongui 1075 dc2 = DataCollector(source = Source.XML)
40     dc2.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FIRST_FILE_NAME)
41     dc2.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_2)
42    
43 jongui 1081 # Create a second Contour.
44 jongui 1075 mosc2 = Contour(scene = s, data_collector = dc2,
45     viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR, cell_to_point = False,
46     outline = True)
47     mosc2.generateContours(0)
48    
49 jongui 1084 # Read in one file one after another and render the object.
50 jongui 1075 for i in range(99, 104):
51     dc1.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FILE_2D +
52     "%04d.vtu" % i)
53     dc1.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_1)
54     dc2.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FILE_2D +
55     "%04d.vtu" % i)
56     dc2.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_2)
57    
58     s.render(PYVISI_EXAMPLE_IMAGES_PATH + IMAGE_NAME + "%04d.jpg" % i)

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