[GRASS-user] r.surf.contour

Hamish hamish_nospam at yahoo.com
Wed Mar 21 00:49:54 EDT 2007


Amaginary Studios wrote:
> I am running r.surf.contour and it is ... taking quite a long time...
> 
> I am just wondering how long the average processing time is with the  
> following g.region
> 
> projection: 1 (UTM)
> zone:       9
> datum:      nad83
> ellipsoid:  grs80
> north:      6052143.70894
> south:      6018782.69306
> west:       644196.986023
> east:       657085.826063
> nsres:      4.00012181
> ewres:      4.00026072
> rows:       8340
> cols:       3222
> cells:      26 871 480
> 
> Perhaps the resolution is too high?
> 
> so far it has been running for 6hours.


It can take a long time. Perhaps 24 hours; let it run over night, it
will eventually finish. IIRC, the 0-100% done counter isn't very linear
with that module.

the more big empty spaces in the input map, the longer it will take.


suggestion: align resolution to exactly 4m:
  g.region res=4 -a



Hamish




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