[GRASS-user] Displaying raster map resolution
Markus Neteler
neteler at osgeo.org
Sun Oct 2 15:27:40 PDT 2016
On Mon, Oct 3, 2016 at 12:13 AM, Rich Shepard <rshepard at appl-ecosys.com> wrote:
> While trying to run r.flow grass tells me that the input DEM map has a
> resolution different from the current one. I thought all maps in the source
> location were re-projected using the target location so I don't why I get
> this error message.
>
> Running g.region -p tells me the current region. Running r.info on the
> elevation map tells me the number of cells and the source location, but not
> the resolution. Sometimes I'll see the resolution as 1.0nnn and other times
> as 0.99nnn. Could this be the incompatibility?
Likely. You may use this parameter of g.region:
align=name
Adjust region cells to cleanly align with this raster map
and hence run:
g.region align=elevation -p
> Is there a way to query a single raster map for resolution?
r.info shows the resolution of a raster map:
r.info elevation | grep Res
| N: 228500 S: 215000 Res: 10
| E: 645000 W: 630000 Res: 10
HTH,
Markus
More information about the grass-user
mailing list