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

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Revision 1148 - (show annotations)
Wed May 16 22:45:33 2007 UTC (12 years, 9 months ago) by jongui
File MIME type: text/x-python
File size: 2276 byte(s)
Added the updated files for pyvisi and removed some incorrect reference images.
1 # Import the necessary modules.
2 from esys.pyvisi import Scene, DataCollector, Contour, Camera
3 from esys.pyvisi.constant import *
4 import os
5
6 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
7 PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
8 X_SIZE = 400
9 Y_SIZE = 300
10
11 SCALAR_FIELD_POINT_DATA_1 = "lava"
12 SCALAR_FIELD_POINT_DATA_2 = "talus"
13 FILE_2D = "phi_talus_lava."
14 FIRST_FILE_NAME = "phi_talus_lava.0099.vtu"
15
16 IMAGE_NAME = "seriesofreads"
17 JPG_RENDERER = Renderer.ONLINE_JPG
18
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. An initial file must always
25 # be assigned when the DataCollector is created, although the same file is
26 # read again in the for-loop.
27 dc1 = DataCollector(source = Source.XML)
28 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
29 FIRST_FILE_NAME))
30 dc1.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_1)
31
32 # Create a Contour.
33 mosc1 = Contour(scene = s, data_collector = dc1,
34 viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR, cell_to_point = False,
35 outline = True)
36 mosc1.generateContours(0)
37
38 # Create a second DataCollector reading from the same XML file. An initial
39 # file must always be assigned when the DataCollector is created,
40 # although the same file is read again in the for-loop.
41 dc2 = DataCollector(source = Source.XML)
42 dc2.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
43 FIRST_FILE_NAME))
44 dc2.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA_2)
45
46 # Create a second Contour.
47 mosc2 = Contour(scene = s, data_collector = dc2,
48 viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR, cell_to_point = False,
49 outline = True)
50 mosc2.generateContours(0)
51
52 # Create a Camera.
53 cam1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
54
55 # Read in one file one after another and render the object.
56 for i in range(99, 104):
57 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
58 FILE_2D + "%04d.vtu") % i)
59 dc2.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
60 FILE_2D + "%04d.vtu") % i)
61
62 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, \
63 IMAGE_NAME + "%04d.jpg") % i)

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