/[escript]/trunk/doc/examples/pyvisi/velocityonplanecut.py
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revision 1147 by ksteube, Wed May 16 06:39:11 2007 UTC revision 1148 by jongui, Wed May 16 22:45:33 2007 UTC
# Line 1  Line 1 
1  # Import the necessary modules  # Import the necessary modules
2  from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera  from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
3  from esys.pyvisi.constant import *  from esys.pyvisi.constant import *
4    import os
5    
6  PYVISI_EXAMPLE_MESHES_PATH = "data_meshes/"  PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
7  PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images/"  PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
8  X_SIZE = 400  X_SIZE = 400
9  Y_SIZE = 400  Y_SIZE = 400
10    
# Line 19  s = Scene(renderer = JPG_RENDERER, num_v Line 20  s = Scene(renderer = JPG_RENDERER, num_v
20    
21  # Create a DataCollector reading from a XML file.  # Create a DataCollector reading from a XML file.
22  dc1 = DataCollector(source = Source.XML)  dc1 = DataCollector(source = Source.XML)
23  dc1.setFileName(file_name = PYVISI_EXAMPLE_MESHES_PATH + FILE_3D)  dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
24  dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)  dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)
25    
26  # Create VelocityOnPlaneCut.  # Create VelocityOnPlaneCut.
# Line 33  vopc1.setRatio(2) Line 34  vopc1.setRatio(2)
34  vopc1.randomOn()  vopc1.randomOn()
35    
36  # Create a Camera.  # Create a Camera.
37  c1 = Camera(scene = s, data_collector = dc1, viewport = Viewport.SOUTH_WEST)  c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
38  c1.isometricView()  c1.isometricView()
39  c1.elevation(angle = -20)  c1.elevation(angle = -20)
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))
43    

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