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

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Revision 1148 - (show annotations)
Wed May 16 22:45:33 2007 UTC (13 years, 9 months ago) by jongui
File MIME type: text/x-python
File size: 1343 byte(s)
Added the updated files for pyvisi and removed some incorrect reference images.
1 # Import the necessary modules
2 from esys.pyvisi import Scene, DataCollector, VelocityOnPlaneCut, Camera
3 from esys.pyvisi.constant import *
4 import os
5
6 PYVISI_EXAMPLE_MESHES_PATH = "data_meshes"
7 PYVISI_EXAMPLE_IMAGES_PATH = "data_sample_images"
8 X_SIZE = 400
9 Y_SIZE = 400
10
11 VECTOR_FIELD_CELL_DATA = "velocity"
12 FILE_3D = "interior_3D.xml"
13 IMAGE_NAME = "velocity.jpg"
14 JPG_RENDERER = Renderer.ONLINE_JPG
15
16
17 # Create a Scene with four viewports
18 s = Scene(renderer = JPG_RENDERER, num_viewport = 1, 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 dc1.setFileName(file_name = os.path.join(PYVISI_EXAMPLE_MESHES_PATH, FILE_3D))
24 dc1.setActiveVector(vector = VECTOR_FIELD_CELL_DATA)
25
26 # Create VelocityOnPlaneCut.
27 vopc1 = VelocityOnPlaneCut(scene = s, data_collector = dc1,
28 viewport = Viewport.SOUTH_WEST, color_mode = ColorMode.VECTOR,
29 arrow = Arrow.THREE_D, lut = Lut.COLOR, cell_to_point = False,
30 outline = True)
31 vopc1.setScaleFactor(scale_factor = 0.5)
32 vopc1.setPlaneToXY(offset = 0.5)
33 vopc1.setRatio(2)
34 vopc1.randomOn()
35
36 # Create a Camera.
37 c1 = Camera(scene = s, viewport = Viewport.SOUTH_WEST)
38 c1.isometricView()
39 c1.elevation(angle = -20)
40
41 # Render the object.
42 s.render(image_name = os.path.join(PYVISI_EXAMPLE_IMAGES_PATH, IMAGE_NAME))
43

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