[GRASS-user] r.proj: meaning of displayed cell numbers

When I run r.proj grass presents information about the source and target
maps; e.g.,

Input:
Cols: 11118 (11118)
Rows: 15536 (15536)
North: 1515424.500000 (1515424.500000)
South: 1468816.500000 (1468816.500000)
West: 610354.500000 (610354.500000)
East: 643708.500000 (643708.500000)
EW-res: 3.000000
NS-res: 3.000000

Output:
Cols: 10172 (647333)
Rows: 14209 (477579)
North: 249034.059746 (291528.074025)
South: 234825.054971 (-186051.086454)
West: 2286071.280048 (2167423.204862)
East: 2296243.286494 (2814756.615068)
EW-res: 1.000001
NS-res: 1.000000

I assume the first numbers are the actual values. What do the parenthetical
values represent?

Regards,

Rich

On Thu, Sep 19, 2019 at 4:51 PM Rich Shepard <rshepard@appl-ecosys.com> wrote:

When I run r.proj grass presents information about the source and target
maps; e.g.,

Input:
Cols: 11118 (11118)
Rows: 15536 (15536)
North: 1515424.500000 (1515424.500000)
South: 1468816.500000 (1468816.500000)
West: 610354.500000 (610354.500000)
East: 643708.500000 (643708.500000)
EW-res: 3.000000
NS-res: 3.000000

Output:
Cols: 10172 (647333)
Rows: 14209 (477579)
North: 249034.059746 (291528.074025)
South: 234825.054971 (-186051.086454)
West: 2286071.280048 (2167423.204862)
East: 2296243.286494 (2814756.615068)
EW-res: 1.000001
NS-res: 1.000000

I assume the first numbers are the actual values. What do the parenthetical
values represent?

The first numbers correspond to the current region in the target location, the numbers in parentheses correspond to the actual map to be reprojected.

Markus M

Regards,

Rich


grass-user mailing list
grass-user@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/grass-user

On Fri, Sep 20, 2019 at 8:49 AM Markus Metz
<markus.metz.giswork@gmail.com> wrote:

On Thu, Sep 19, 2019 at 4:51 PM Rich Shepard <rshepard@appl-ecosys.com> wrote:
>
> When I run r.proj grass presents information about the source and target
> maps; e.g.,
>
> Input:
> Cols: 11118 (11118)
> Rows: 15536 (15536)
> North: 1515424.500000 (1515424.500000)
> South: 1468816.500000 (1468816.500000)
> West: 610354.500000 (610354.500000)
> East: 643708.500000 (643708.500000)
> EW-res: 3.000000
> NS-res: 3.000000
>
> Output:
> Cols: 10172 (647333)
> Rows: 14209 (477579)
> North: 249034.059746 (291528.074025)
> South: 234825.054971 (-186051.086454)
> West: 2286071.280048 (2167423.204862)
> East: 2296243.286494 (2814756.615068)
> EW-res: 1.000001
> NS-res: 1.000000
>
> I assume the first numbers are the actual values. What do the parenthetical
> values represent?

The first numbers correspond to the current region in the target location, the numbers in parentheses correspond to the actual map to be reprojected.

Improved now in the source code:

master: https://github.com/OSGeo/grass/commit/a69135a74fc5c2b2047aea627deaf22be6f7cf4f
relbranch78: https://github.com/OSGeo/grass/commit/07229c7edb3b96f6a9d33130a1d4d49217182e1c

markusN

On Fri, 20 Sep 2019, Markus Metz wrote:

The first numbers correspond to the current region in the target location,
the numbers in parentheses correspond to the actual map to be reprojected.

Markus M,

Thanks very much for the explanation.

Regards,

Rich

On Fri, 20 Sep 2019, Markus Neteler wrote:

Improved now in the source code:

master: https://github.com/OSGeo/grass/commit/a69135a74fc5c2b2047aea627deaf22be6f7cf4f
relbranch78: https://github.com/OSGeo/grass/commit/07229c7edb3b96f6a9d33130a1d4d49217182e1c

markusN,

Thank you. I've wondered about the differences for a while and only now
thought to ask when I didn't see any explanation in the manual pages.

Regards,

Rich

On Fri, 20 Sep 2019, Markus Neteler wrote:

Improved now in the source code:

master: https://github.com/OSGeo/grass/commit/a69135a74fc5c2b2047aea627deaf22be6f7cf4f
relbranch78: https://github.com/OSGeo/grass/commit/07229c7edb3b96f6a9d33130a1d4d49217182e1c

markusN,

Thank you.

Rich