[GRASS-user] Best workflow

[Paul Meems]

Thanks Markus for your suggestion.

I first tried Stefan's suggestion of using a VRT-file.
I have 1300 tiff-files with a combined file size of 400GB. Creating the
VRT-file was no problem, but when I tried to import the VRT-file in GRASS7
using r.in.gdal GRASS crashes and dies.
Loading the same VRT-file in QGis did take some time to load but it worked.

So I think I need to set-up a GeoServer after all, just to get a small
portion of my height data to process in GRASS without worrying about
polygons that are partially on multiple tiff-files.

Of course I'm open to any other suggestion. As said I'm new to GRASS.




Paul

*Paul Meems *
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and forum moderator of MapWindow GIS.
www.mapwindow.org

Owner of MapWindow.nl - Support for
Dutch speaking users.
www.mapwindow.nl


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2016-06-26 1:34 GMT+02:00 Markus Neteler <neteler at osgeo.org>:

> On Fri, Jun 24, 2016 at 12:44 PM, Blumentrath, Stefan
> <Stefan.Blumentrath at nina.no> wrote:
> > Forgot to mention: pay attention to border effects in r.slope.aspect
> (see:
> > https://grass.osgeo.org/grass70/manuals/r.slope.aspect.html). So if your
> > tiles do not overlap, you might have to merge them...
>
> If you can define your tiles yourself, then you may use the "overlap"
> parameter to create tiles which overlap by 1 row/column:
>
> https://grass.osgeo.org/grass72/manuals/r.tile.html
>
> Markus
>
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