[GRASS-dev] Re: [GRASS GIS] #975: WxGUI should provide area measurement tool

[GRASS GIS]

#975: WxGUI should provide area measurement tool
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  Reporter:  marisn       |       Owner:  grass-dev at lists.osgeo.org
      Type:  enhancement  |      Status:  new                      
  Priority:  normal       |   Milestone:  6.4.0                    
 Component:  wxGUI        |     Version:  unspecified              
Resolution:               |    Keywords:  d.measure                
  Platform:  All          |         Cpu:  All                      
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Changes (by hamish):

  * keywords:  => d.measure
  * platform:  Unspecified => All
  * component:  default => wxGUI
  * cpu:  Unspecified => All

Comment:

 see d.measure which does this for xmons; G_area_of_polygon() is used
 (lib/gis/area.c). Importantly it works for lat/lon too.

 classic case for SWIG style links to libgis, but a new m.area module could
 take a series of coords and spit out an answer.

 does the wxGUI measurement tool use geodetic distance for lat/lon
 locations?


 Hamish

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Ticket URL: <http://trac.osgeo.org/grass/ticket/975#comment:1>
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