/[escript]/trunk/modellib/py_src/visualization.py
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Annotation of /trunk/modellib/py_src/visualization.py

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Revision 147 - (hide annotations)
Fri Aug 12 01:45:47 2005 UTC (14 years, 2 months ago) by jgs
Original Path: trunk/esys2/modellib/py_src/visualization.py
File MIME type: text/x-python
File size: 2336 byte(s)
erge of development branch dev-02 back to main trunk on 2005-08-12

1 jgs 127 # $Id$
2    
3 jgs 147 from escript.modelframe import Model
4 jgs 127
5     class Visualization(Model):
6     """
7    
8     generic visualization of scalar, vector and tensorial data (not implemeted yet)
9    
10 jgs 147 t: current time
11 jgs 127 scalar: scalar data set
12     vector: vector data set
13     tensor: tensor data set
14     stride: visulaization is done every strides time step
15     filename: name of the movie file
16    
17     """
18     def __init__(self,debug=False):
19     Model.__init__(self,debug=debug)
20 jgs 147 self.declareParameter(t=0.,scalar=None,vector=None,tensor=None,stride=1,movie="movie.mpg",counter=0)
21 jgs 127
22 jgs 147 def doInitialization(self):
23 jgs 127 self.__n=0
24     self.__scene=None
25    
26 jgs 147 def doStepPostprocessing(self,dt):
27 jgs 127 self.__n+=1
28     if self.__n%self.stride:
29     data=self.scalar
30     if data!=None:
31     pass
32     data=self.vector
33     if data!=None:
34     pass
35     data=self.tensor
36     if data!=None:
37     pass
38    
39     def doFinalization(self):
40     # make the movie into self.filename
41     pass
42    
43     class WriteVTK(Visualization):
44     """ writes data into a VTK file for further processing. Currently data are written in several files for
45     each data type. This may change in the future.
46    
47     scalar: scalar data set
48     vector: vector data set
49     tensor: tensor data set
50     stride: file is written every stride-th time step
51     filename: name of the data files. use %s for indication of data type (s,v,t) and time step id.
52    
53     """
54     def __init__(self,debug=False):
55     Visualization.__init__(self,debug=debug)
56 jgs 147 self.declareParameter(filename="data.%s.xml")
57 jgs 127
58 jgs 147 def doStepPostprocessing(self,dt):
59 jgs 127 self.counter+=1
60     if self.counter%self.stride==0:
61     n=self.counter/self.stride
62     data=self.scalar
63 jgs 147 if hasattr(data,"saveVTK"): data.saveVTK(self.filename%("s.%d"%n))
64 jgs 127 data=self.vector
65 jgs 147 if hasattr(data,"saveVTK"): data.saveVTK(self.filename%("v.%d"%n))
66 jgs 127 data=self.tensor
67 jgs 147 if hasattr(data,"saveVTK"): data.saveVTK(self.filename%("t.%d"%n))

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