[GRASS-user] FW: r.lake issues

[Maris Nartiss]

Hello,
please check following things:
1) water level at seed point/area is above terrain (provided DEM);
2) seed point/area is located within current computational region
(just run g.region rast=my_dem before r.lake);
3) seed point/area has values > 0 (quirk of current implementation).

Good luck!
Maris.

PS. 3rd check probably could be eliminated by slight alteration of
r.lake code. Just a note to myself ;)

2012/8/28 ambrish dhaka <ambijat at hotmail.com>:
>
>
> ________________________________
> From: ambijat at hotmail.com
> To: qgis-user at lists.osgeo.org
> Subject: r.lake issues
> Date: Tue, 28 Aug 2012 04:55:59 +0000
>
> HI! ALL
> I have been trying to generate a lake feature from dem and seed raster files
> using r.lake, this is information below.
>
> The areas are not created as values can be seen below.
>
> r.lake dem=e15234 at user1 seed=seed at user1 wl=50 lake=seed50
>
>
> Lake depth from 0.000000 to 0.000000
>
>
> Lake area 0.000000 square meters
>
>
> Lake volume 0.000000 cubic meters
>
>
> Volume is correct only if lake depth (terrain raster map) is in meters
>
> Successfully finished
>
>
> What could be the reason.
>
>
> AMBRISH DHAKA
>
>
> THANKS! IN ADVANCE
>
>
>
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