[GRASS-user] r.water.outlet: no map displayed
Helmut Kudrnovsky
hellik at web.de
Mon Oct 3 01:00:53 PDT 2016
Rich Shepard wrote
> For some reason r.water.outlet now produces an empty map. It did before I
> re-projected source maps to ensure they all have the proper values in the
> target location.
>
> Attached is an image of the input drainage map and the coordinate
> feature
> (the lower dot).
>
> This is how r.info describes the output (watershed) map:
>
> Type of Map: raster Number of Categories: 0 |
> Data Type: CELL
> Rows: 1004
> Columns: 577
> Total Cells: 579308
>
> Projection: NAD83(HARN) / Oregon North
> N: 175430.80940854 S: 174426.61003591 Res: 1.00019858
> E: 2296197.40538338 W: 2295620.05945154 Res: 1.00059954
> Range of data: min = 1 max = 1
>
> Data Description: |
> generated by r.water.outlet
>
> Comments:
> r.water.outlet --overwrite input="drainage" output="watershed" coord\
> inates=2295821.27858,175258.094514
>
> I'm not seeing what I've done differently so that there's no visible
> display of map "watershed."
>
> TIA,
>
> Rich
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>
> drainage-outlet-coord.png (140K)
> <http://osgeo-org.1560.x6.nabble.com/attachment/5288967/0/drainage-outlet-coord.png>
=> Range of data: min = 1 max = 1
it seems the raster isn't empty.
tested here the NC sample from the manual:
https://grass.osgeo.org/grass73/manuals/r.water.outlet.html
works nicly.
please test the sample from the manual with the NC sample data set [1], then
follow the example workflow with your data and report the results and the
used commands (g.region, r.watershed, r.water.outlet).
[1] https://grass.osgeo.org/download/sample-data/
-----
best regards
Helmut
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