Hello,
I’ve tried to use r.surf.idw on a large raster. It works well in 6.4.4.
I’ve moved to 7.1 SVN, where everything is marvellous, at least what I use, except r.surf.idw which creates the same output as the impot was.
I’ve also svn-ed and compiled 7.0.1, where r.surf.idw did the same.
Namely:
r.surf.idw --overwrite --verbose input=output_temp1 output=output_temp2 npoints=7
when finished, output_temp2 is the same as output_temp1 and no interpolation seems to be done.
One more big difference:
6.4.4 uses less than 2G ram and finishes in a few minutes. In 7.0 and 7.1 it eats all 6GB RAM, 4 GB SWAP and runs much-much longer, understandably…
Should I stay with 6.4.4?
thnaks
Robert