/[escript]/trunk/pyvisi/py_src/streamline.py
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revision 977 by jongui, Fri Feb 2 05:33:05 2007 UTC revision 978 by jongui, Fri Feb 16 07:02:18 2007 UTC
# Line 25  class StreamLine(DataSetMapper, Actor3D, Line 25  class StreamLine(DataSetMapper, Actor3D,
25      # If no vector field is specified, the first encountered in the file will      # If no vector field is specified, the first encountered in the file will
26      # be loaded automatically. If no lut is specified, the color scheme will      # be loaded automatically. If no lut is specified, the color scheme will
27      # be used.      # be used.
28      def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST,      def __init__(self, scene, data_collector, scalar = None, vector = None,
29          lut = Lut.COLOR, color_mode = ColorMode.VECTOR, outline = True):          viewport = Viewport.SOUTH_WEST, lut = Lut.COLOR,
30            color_mode = ColorMode.VECTOR, outline = True):
31          """          """
32          @type scene: L{Scene <scene.Scene>} object          @type scene: L{Scene <scene.Scene>} object
33          @param scene: Scene in which objects are to be rendered on          @param scene: Scene in which objects are to be rendered on
34          @type data_collector: L{DataCollector <datacollector.DataCollector>}          @type data_collector: L{DataCollector <datacollector.DataCollector>}
35                  object                  object
36          @param data_collector: Deal with source of data for visualisation          @param data_collector: Deal with source of data for visualisation
37            @type vector: String
38            @param vector: Vector field to load from the source file
39            @type scalar: String
40            @param scalar: Scalar field to load from the source file
41          @type viewport: L{Viewport <constant.Viewport>} constant          @type viewport: L{Viewport <constant.Viewport>} constant
42          @param viewport: Viewport in which the object is to be rendered on          @param viewport: Viewport in which the object is to be rendered on
43          @type lut : L{Lut <constant.Lut>} constant          @type lut : L{Lut <constant.Lut>} constant
# Line 68  class StreamLine(DataSetMapper, Actor3D, Line 72  class StreamLine(DataSetMapper, Actor3D,
72    
73          # ----- Streamline -----          # ----- Streamline -----
74    
75            if(vector != None):
76                print "vector"
77                data_collector._setActiveVector(vector)
78            elif(scalar != None):
79                print "scalar"
80                data_collector._setActiveScalar(scalar)
81    
82          # NOTE: Lookup table color mapping (color or grey scale) MUST be set          # NOTE: Lookup table color mapping (color or grey scale) MUST be set
83          # before DataSetMapper. If it is done after DataSetMapper, no effect          # before DataSetMapper. If it is done after DataSetMapper, no effect
84          # will take place.          # will take place.
# Line 87  class StreamLine(DataSetMapper, Actor3D, Line 98  class StreamLine(DataSetMapper, Actor3D,
98                  lookup_table._getLookupTable())                  lookup_table._getLookupTable())
99    
100          if(color_mode == ColorMode.VECTOR): # Color velocity by vector.          if(color_mode == ColorMode.VECTOR): # Color velocity by vector.
101                print "vectro mode"
102              DataSetMapper._setScalarRange(self,              DataSetMapper._setScalarRange(self,
103                      data_collector._getVectorRange())                      data_collector._getVectorRange())
104          elif(color_mode == ColorMode.SCALAR): # Color velocity by scalar.          elif(color_mode == ColorMode.SCALAR): # Color velocity by scalar.
105                print "scalar mode"
106              DataSetMapper._setScalarRange(self,              DataSetMapper._setScalarRange(self,
107                      data_collector._getScalarRange())                      data_collector._getScalarRange())
108    
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