/[thuban]/trunk/thuban/Thuban/Model/layer.py
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Diff of /trunk/thuban/Thuban/Model/layer.py

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revision 771 by jonathan, Tue Apr 29 14:34:02 2003 UTC revision 794 by jonathan, Wed Apr 30 17:00:52 2003 UTC
# Line 176  class Layer(BaseLayer): Line 176  class Layer(BaseLayer):
176                                           maxdepth)                                           maxdepth)
177          if self.__classification is not None:          if self.__classification is not None:
178              fieldname = self.__classification.GetField()              fieldname = self.__classification.GetField()
179              if not self.store.Table().field_info_by_name(fieldname):              if fieldname is not None and \
180                   not self.store.Table().field_info_by_name(fieldname):
181                  self.SetClassification(None)                  self.SetClassification(None)
182          self.changed(LAYER_CHANGED, self)          self.changed(LAYER_CHANGED, self)
183    
# Line 244  class Layer(BaseLayer): Line 245  class Layer(BaseLayer):
245      def ShapesInRegion(self, box):      def ShapesInRegion(self, box):
246          """Return the ids of the shapes that overlap the box.          """Return the ids of the shapes that overlap the box.
247    
248          Box is a tuple (left, bottom, right, top) in the coordinate          Box is a tuple (left, bottom, right, top) in unprojected coordinates.
         system used by the layer's shapefile.  
249          """          """
250          left, bottom, right, top = box          left, bottom, right, top = box
251    
252            if self.projection is not None:
253                left,  bottom = self.projection.Forward(left, bottom)
254                right, top    = self.projection.Forward(right, top)
255    
256          return self.shapetree.find_shapes((left, bottom), (right, top))          return self.shapetree.find_shapes((left, bottom), (right, top))
257    
258      def GetProjection(self):      def GetProjection(self):
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