[GRASS-dev] [GRASS GIS] #1228: r.surf.area manual needs updating

GRASS GIS trac at osgeo.org
Thu Dec 2 23:53:21 EST 2010


#1228: r.surf.area manual needs updating
-------------------------+--------------------------------------------------
 Reporter:  cmbarton     |       Owner:  grass-dev@…              
     Type:  defect       |      Status:  new                      
 Priority:  minor        |   Milestone:  6.4.1                    
Component:  Raster       |     Version:  unspecified              
 Keywords:  r.surf.area  |    Platform:  All                      
      Cpu:  All          |  
-------------------------+--------------------------------------------------
 The manual for r.surf.area seems to be out of date with respect to the
 information generated by the program. Here is what the module reports:

 r.surf.area input=elevation.dem at PERMANENT
 [[BR]]
 Null value area ignored in calculation 2.394900e+06
 [[BR]]
 Plan area used in calculation: 2.644920e+08
 [[BR]]
 Surface Area Calculation(low, high, avg): 2.701080e+08 2.732753e+08
 2.716916e+08
 [[BR]]
 Current Region plan area: 2.654802e+08
 [[BR]]
 Estimated Region Surface Area: 2.727067e+08
 [[BR]]
 Done.

 But here is what the manual says it reports:

 Reported totals are:
 [[BR]]
 1. "Plan" area of NULL values within the current GRASS region
 [[BR]]
 2. "Plan" area within calculation region (rows-1 * cols-1 * cellarea)
 [[BR]]
 3. Average of the minimum and maximum calculated 3d triangle area within
 this region
 [[BR]]
 4. "Plan" area within current GRASS region (rows * cols * cellarea)
 [[BR]]
 5. Scaling of calculated area to current GRASS region (see NOTE)

 Maybe it is just a simple change of wording for each entry, but someone
 who is familiar with the command ought to check to ensure that this is all
 that is needed

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1228>
GRASS GIS <http://grass.osgeo.org>



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