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

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Revision 1194 - (hide annotations)
Thu Jun 14 05:53:49 2007 UTC (13 years, 1 month ago) by jongui
File MIME type: text/x-python
File size: 1769 byte(s)
- Fixed a minor bug in the Camera module.
- Added some extra capability to the Movie module.
- The Camera module now has the capability to perform parallel projection by calling the 'parallelProjectionOn' method.
- The Camera at this stage is only capable of zooming towards the rendered object using 'dolly'. However, it appears that 'dolly' cannot be used to perform zooming out.
1 ksteube 1147 # Import the necessary modules.
2     from esys.pyvisi import Scene, DataCollector, Map, Camera
3     from esys.pyvisi.constant import *
4 jongui 1148 import os
5 ksteube 1147
6 jongui 1148 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
7     PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
8 ksteube 1147 X_SIZE = 800
9     Y_SIZE = 800
10    
11     SCALAR_FIELD_POINT_DATA = "temperature"
12     SCALAR_FIELD_CELL_DATA = "temperature_cell"
13     FILE_3D = "interior_3D.xml"
14     IMAGE_NAME = "map.jpg"
15     JPG_RENDERER = Renderer.ONLINE_JPG
16    
17     # Create a Scene with four viewports.
18     s = Scene(renderer = JPG_RENDERER, num_viewport = 4, x_size = X_SIZE,
19     y_size = Y_SIZE)
20    
21     # Create a DataCollector reading from a XML file.
22     dc1 = DataCollector(source = Source.XML)
23 jongui 1148 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
24 ksteube 1147 dc1.setActiveScalar(scalar = SCALAR_FIELD_POINT_DATA)
25    
26     # Create a Map for the first viewport.
27     m1 = Map(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST,
28     lut = Lut.COLOR, cell_to_point = False, outline = True)
29     m1.setRepresentationToWireframe()
30    
31     # Create a Camera for the first viewport
32 jongui 1148 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
33 ksteube 1147 c1.isometricView()
34    
35     # Create a second DataCollector reading from the same XML file but specifying
36     # a different scalar field.
37     dc2 = DataCollector(source = Source.XML)
38 jongui 1148 dc2.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
39 ksteube 1147 dc2.setActiveScalar(scalar = SCALAR_FIELD_CELL_DATA)
40    
41     # Create a Map for the third viewport.
42     m2 = Map(scene = s, data_collector = dc2, viewport = Viewport.NORTH_EAST,
43     lut = Lut.COLOR, cell_to_point = True, outline = True)
44    
45     # Create a Camera for the third viewport
46 jongui 1194 c2 = Camera(scene = s, viewport = Viewport.NORTH_EAST)
47 ksteube 1147
48     # Render the object.
49 jongui 1148 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))

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