[GRASS-dev] [GRASS GIS] #1605: WXGUI d.vect doesn't offer all vector map layers in a dropdown list

[GRASS GIS]

#1605: WXGUI d.vect doesn't offer all vector map layers in a dropdown list
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 Reporter:  marisn        |       Owner:  grass-dev@…              
     Type:  defect        |      Status:  new                      
 Priority:  major         |   Milestone:  6.4.3                    
Component:  wxGUI         |     Version:  6.4.2                    
 Keywords:  vector layer  |    Platform:  Unspecified              
      Cpu:  Unspecified   |  
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Comment(by mmetz):

 Replying to [comment:4 martinl]:
 > Replying to [comment:3 mmetz]:
 > > Replying to [comment:2 annakrat]:
 > > > Now, layers listed with v.category (and not v.db.connect) are shown.
 > >
 > > Not good. This method was used some years ago, but it makes the GUI
 even slower than it is already. Therefore v.category was no longer used to
 get the vector's layers. v.db.connect is usually very fast, but v.category
 takes some time for a larger vector.
 > >
 > > Please revert this change.
 >
 > any other suggestion? Store number of layers in header file?

 Alternatively, v.category could get a new option for option, something
 like option=layers which would print out only layer numbers, one per line.
 This would be fast if topology is available because in this case the
 internal category index can be used and the vector map would need to be
 opened with head only. Without topology, option=layers would print
 nothing.

 Markus M

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1605#comment:5>
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