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

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Thu Sep 25 23:11:13 2008 UTC (12 years, 5 months ago) by ksteube
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1 ksteube 1811
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 jongui 1203 """
23     Author: John Ngui, john.ngui@uq.edu.au
24     """
25    
26 jongui 1191 # Import the necessary modules.
27     from esys.pyvisi import Scene, DataCollector, Map, Camera, Velocity, Legend
28     from esys.pyvisi import Movie, LocalPosition
29     from esys.pyvisi.constant import *
30     import os
31    
32     PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
33     PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
34     X_SIZE = 800
35     Y_SIZE = 800
36    
37     SCALAR_FIELD_POINT_DATA = "temp"
38     FILE_2D = "tempvel-"
39     IMAGE_NAME = "movie"
40     JPG_RENDERER = Renderer.ONLINE_JPG
41    
42     # Create a Scene.
43     s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
44     y_size = Y_SIZE)
45    
46     # Create a DataCollector reading from a XML file.
47     dc1 = DataCollector(source = Source.XML)
48     dc1.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA)
49    
50     # Create a Map.
51     m1 = Map(scene = s, data_collector = dc1,
52     viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR, cell_to_point = False,
53     outline = True)
54    
55     # Create a Camera.
56     cam1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
57    
58     # Create a movie.
59 jongui 1202 mov = Movie()
60 jongui 1197 #lst = []
61 jongui 1191
62     # Read in one file one after another and render the object.
63     for i in range(938, 949):
64     dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, \
65     FILE_2D + "%06d.vtu") % i)
66    
67     s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, \
68     IMAGE_NAME + "%06d.jpg") % i)
69    
70 jongui 1197 #lst.append(IMAGE_NAME + "%06d.jpg" % i)
71    
72     # Images (first and last inclusive) from which the movie is to be generated.
73     mov.imageRange(input_directory = PYVISI_EXAMPLE_IMAGES_PATH,
74 jongui 1191 first_image = IMAGE_NAME + "000938.jpg",
75 jongui 1197 last_image = IMAGE_NAME + "000948.jpg")
76 jongui 1191
77 jongui 1197 # Alternatively, a list of images can be specified.
78     #mov.imageList(input_directory = PYVISI_EXAMPLE_IMAGES_PATH, image_list = lst)
79    
80     # Generate the movie.
81     mov.makeMovie(os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, "movie.mpg"))
82    

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