On 13-10-15 15:37, Anna Petrášová wrote:
On Tue, Oct 13, 2015 at 9:03 AM, Markus Neteler <[email protected] <mailto:[email protected]>> wrote:On Tue, Oct 13, 2015 at 1:07 PM, Moritz Lennert <[email protected] <mailto:[email protected]>> wrote: > The -n flag comes from r.proj and is explained as such in the r.proj man > page: Right. > "When reprojecting whole-world maps the user should disable map-trimming > with the -n flag. Trimming is not useful here because the module has the > whole map in memory anyway. ^^^ already here I am lost :-) Trimming is doing what (also compared to -l)?
I was asking myself the same some time ago. Perhaps this option does not need to be hidden, but it would be good to have a positive definition of what trimming means (also in the manual page of r.proj)? I would be inclined to think that if even Markus does not know what this means, many users won't know either ;-)
> Besides that, world "edges" are hard (or > impossible) to find in projections other than latitude-longitude so results > may be odd with trimming." All quite complicated and contradicting a bit the purpose of r.import. Can the usage of -n be made automated for r.import and not exposed to the user?It can be there by default, but maybe it could be harmful in certain cases?(in case I suggest to hide -n for now for the 7.0.2 release, it can be introduced later if not avoidable).It is sort of hidden in the Optional tab, I am not sure if we gain much by hiding it completely.Markus _______________________________________________ grass-dev mailing list [email protected] <mailto:[email protected]> http://lists.osgeo.org/mailman/listinfo/grass-dev _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
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