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

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Revision 1388 - (show annotations)
Fri Jan 11 07:45:58 2008 UTC (11 years, 3 months ago) by trankine
File MIME type: text/x-python
File size: 1371 byte(s)
And get the *(&(*&(* name right
1 """
2 Author: John Ngui, john.ngui@uq.edu.au
3 """
4
5 # Import the necessary modules
6 from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
7 from esys.pyvisi.constant import *
8 import os
9
10 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
11 PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
12 X_SIZE = 400
13 Y_SIZE = 400
14
15 VECTOR_FIELD_CELL_DATA = "velocity"
16 FILE_3D = "interior_3D.xml"
17 IMAGE_NAME = "velocity.jpg"
18 JPG_RENDERER = Renderer.ONLINE_JPG
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.
25 dc1 = DataCollector(source = Source.XML)
26 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
27 dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)
28
29 # Create VelocityOnPlaneCut.
30 vopc1 = VelocityOnPlaneCut(scene = s, data_collector = dc1,
31 viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.VECTOR,
32 arrow = Arrow.THREE_D, lut = Lut.COLOR, cell_to_point = False,
33 outline = True)
34 vopc1.setScaleFactor(scale_factor = 0.5)
35 vopc1.setPlaneToXY(offset = 0.5)
36 vopc1.setRatio(2)
37 vopc1.randomOn()
38
39 # Create a Camera.
40 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
41 c1.isometricView()
42 c1.elevation(angle = -20)
43
44 # Render the object.
45 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))
46

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