/[escript]/trunk/pyvisi/py_src/arrow.py
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Contents of /trunk/pyvisi/py_src/arrow.py

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Revision 943 - (show annotations)
Mon Jan 29 07:22:43 2007 UTC (14 years, 1 month ago) by jongui
File MIME type: text/x-python
File size: 987 byte(s)
new pyvisi files
1 """
2 @author: John NGUI
3 """
4
5 import vtk
6
7 class Arrow2D:
8 """
9 Class that defines 2D arrow.
10 """
11
12 def __init__(self):
13 """
14 Initialise the 2D arrow.
15 """
16
17 self.__vtk_arrow2D = vtk.vtkGlyphSource2D()
18 self.__setupArrow2D()
19
20 def __setupArrow2D(self):
21 """
22 Setup the 2D arrow.
23 """
24
25 # Set to use arrows instead of cone, sphere, etc.
26 self.__vtk_arrow2D.SetGlyphTypeToArrow()
27 # Fill the inside of the arrow.
28 self.__vtk_arrow2D.SetFilled(0)
29 self.__output = self.__vtk_arrow2D.GetOutput()
30
31 def _getOutput(self):
32 """
33 Return the 2D arrow.
34
35 @rtype: vtkPolyData
36 @return: Polygonal data
37 """
38
39 return self.__output
40
41 class Arrow3D:
42 """
43 Class that defines 3D arrow.
44 """
45
46 def __init__(self):
47 """
48 Initialise the 3D arrow.
49 """
50
51 self.__vtk_arrow3D = vtk.vtkArrowSource()
52 self.__output = self.__vtk_arrow3D.GetOutput()
53
54 def _getOutput(self):
55 """
56 Return the 3D arrow.
57
58 @rtype: vtkPolyData
59 @return Polygonal data
60 """
61
62 return self.__output
63
64

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