/[escript]/trunk/doc/examples/pyvisi/streamline.py
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trunk/doc/examples/pyvisi/streamline.py revision 1147 by ksteube, Wed May 16 06:39:11 2007 UTC temp_trunk_copy/doc/examples/pyvisi/streamline.py revision 1384 by phornby, Fri Jan 11 02:29:38 2008 UTC
# Line 1  Line 1 
1    """
2    Author: John Ngui, john.ngui@uq.edu.au
3    """
4    
5  # Import the necessary modules.  # Import the necessary modules.
6  from esys.pyvisi import Scene, DataCollector, StreamLine, Camera  from esys.pyvisi import Scene, DataCollector, StreamLine, Camera
7  from esys.pyvisi.constant import *  from esys.pyvisi.constant import *
8    import os
9    
10  PYVISI_EXAMPLE_MESHES_PATH = "data_meshes/"  PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
11  PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images/"  PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
12  X_SIZE = 400  X_SIZE = 400
13  Y_SIZE = 400  Y_SIZE = 400
14    
# Line 12  FILE_3D = "interior_3D.xml" Line 17  FILE_3D = "interior_3D.xml"
17  IMAGE_NAME = "streamline.jpg"  IMAGE_NAME = "streamline.jpg"
18  JPG_RENDERER = Renderer.ONLINE_JPG  JPG_RENDERER = Renderer.ONLINE_JPG
19    
   
20  # Create a Scene.  # Create a Scene.
21  s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,  s = Scene(renderer = JPG_RENDERER, num_viewport = 1, x_size = X_SIZE,
22          y_size = Y_SIZE)          y_size = Y_SIZE)
23    
24  # Create a DataCollector reading from a XML file.  # Create a DataCollector reading from a XML file.
25  dc1 = DataCollector(source = Source.XML)  dc1 = DataCollector(source = Source.XML)
26  dc1.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FILE_3D)  dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
27    
28  # Create a Streamline.  # Create a Streamline.
29  sl1 = StreamLine(scene = s, data_collector = dc1,  sl1 = StreamLine(scene = s, data_collector = dc1,
30          viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.SCALAR,          viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.SCALAR,
31          lut = Lut.COLOR, cell_to_point = False, outline = True)          lut = Lut.COLOR, cell_to_point = False, outline = True)
32  sl1.setTubeRadius(radius = 0.02)  sl1.setTubeRadius(radius = 0.02)
33    sl1.setTubeNumberOfSides(3)
34    sl1.setTubeRadiusToVaryByVector()
35    sl1.setPointSourceRadius(0.9)
36    
37  # Create a Camera.  # Create a Camera.
38  c1 = Camera(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST)  c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
39  c1.isometricView()  c1.isometricView()
40    
41  # Render the object.  # Render the object.
42  s.render(PYVISI_EXAMPLE_IMAGES_PATH + IMAGE_NAME)  s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))

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