/[escript]/trunk/pyvisi/py_src/common.py
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revision 835 by jongui, Mon Sep 4 22:20:28 2006 UTC revision 839 by jongui, Wed Sep 6 04:53:50 2006 UTC
# Line 1  Line 1 
1  """  """
2  Class that defines the common operations invoked by the components.  
3    @author: John Ngui
4    @author: Lutz Gross
5  """  """
6    
7  import vtk  import vtk
8    
9  class Common:  class Common:
10      """      """
11      @author: John Ngui      Class that defines the common operations invoked by the components.
     @author: Lutz Gross  
12      """      """
13    
14      def __init__(self, open_scene, data_collector):      def __init__(self, scene, data_collector):
15          """          """
16          Initialize all the instance variables.          Initialize all the instance variables.
17    
18          @type open_scene: L{OpenScene <openscene.OpenScene>} object          @type scene: L{OpenScene <scene.Scene>} object
19          @param open_scene: Scene in which components are to be added to          @param scene: Scene in which components are to be added to
20          @type data_collector: L{DataCollector <datacollector.DataCollector>}          @type data_collector: L{DataCollector <datacollector.DataCollector>}
21              object              object
22          @param data_collector: Source of data for visualization          @param data_collector: Source of data for visualization
23          """          """
24    
25          self.open_scene = open_scene          self.scene = scene
26          self.data_collector = data_collector          self.data_collector = data_collector
27          self.vtk_mapper = None          self.vtk_mapper = None
28          self.vtk_actor = None          self.vtk_actor = None
29    
30      def setMapper(self, component):      def setMapper(self, component, lut = None):
31          """          """
32          Set up the mapper and its input.          Set up the mapper and its input.
33    
34          @type component: String          @type component: String
35          @param component: Component to be mapped          @param component: Component to be mapped
36            @type lut: L{BlueToRed <colormap.BlueToRed>} or
37                L{RedToBlue <colormap.RedToBlue>} object
38            @param lut: Color lookup table to be used by the mapper
39          """          """
40    
41          self.vtk_mapper = vtk.vtkDataSetMapper()          self.vtk_mapper = vtk.vtkDataSetMapper()
42          eval("self.vtk_mapper.SetInput(%s)" % component)          eval("self.vtk_mapper.SetInput(%s)" % component)
43            
44            if(lut != None):
45                self.vtk_mapper.SetLookupTable(lut.getLut())    
46    
47      def setActor(self):      def setActor(self):
48          """          """
# Line 50  class Common: Line 57  class Common:
57          Add the actor to the renderer.          Add the actor to the renderer.
58          """          """
59    
60          self.open_scene.getRenderer().AddActor(self.vtk_actor)          self.scene.getRenderer().AddActor(self.vtk_actor)
61    
62      def setOpacity(self, opacity):      def setOpacity(self, opacity):
63          """          """
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