/[escript]/trunk/pyvisi/py_src/text.py
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Annotation of /trunk/pyvisi/py_src/text.py

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Revision 860 - (hide annotations)
Thu Sep 28 08:17:29 2006 UTC (14 years, 3 months ago) by jongui
File MIME type: text/x-python
File size: 1436 byte(s)
- added sample drivers on how to use all of the currently available modules.
- completed the epydocs for all the currently available modules.
- added the rotation feature for camera and plane cutting.


1 gross 792 """
2 jongui 845 @author: John Ngui
3     @author: Lutz Gross
4 gross 792 """
5    
6 jongui 846 import vtk
7 jongui 847 from style import Style
8 gross 792
9 jongui 846 class Text:
10     """
11     Class that displays text.
12     """
13 jongui 845
14 jongui 846 def __init__(self, scene):
15     """
16     @type scene: L{Scene <scene.Scene>} object
17     @param scene: Scene in which components are to be added to
18     """
19    
20     self.scene = scene
21 jongui 852 self.vtk_text_mapper = vtk.vtkTextMapper()
22     self.vtk_text_actor = vtk.vtkScaledTextActor()
23 jongui 846
24     def setText(self, text):
25     """
26 jongui 860 Set up the text mapper.
27 jongui 846
28     @type text: String
29     @param text: Text to be displayed
30     """
31    
32     self.vtk_text_mapper.SetInput(text)
33    
34     self.setActor()
35     self.addActor()
36    
37     def setActor(self):
38     """
39     Set up the 2D text actor, its mapper and its display position.
40     """
41    
42     self.vtk_text_actor.SetMapper(self.vtk_text_mapper)
43 jongui 852 self.setPosition(50, 20) # Default text position
44 jongui 846
45     def addActor(self):
46     """
47     Add the 2D text actor to the renderer.
48     """
49    
50     self.scene.getRenderer().AddActor2D(self.vtk_text_actor)
51 jongui 847
52 jongui 852 def setPosition(self, x_coor, y_coor):
53 jongui 860 """
54     Set the display position of the text.
55     @type x_coor: Number
56     @param x_coor: Coordinate along the x-axis
57     @type y_coor: Number
58     @param y_coor: Coordinate along the y-axis
59     """
60    
61 jongui 852 self.vtk_text_actor.SetDisplayPosition(x_coor, y_coor)
62 jongui 847
63 jongui 852 def setStyle(self, style):
64 jongui 860 """
65     Set the style of the text.
66     @type style: L{Style <style.Style>} object
67     @param style: Style of the text
68     """
69    
70 jongui 852 self.vtk_text_mapper.SetTextProperty(style.getStyle())
71 jongui 847

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