[GRASS-user] Trento3D screenshots redone

[Jeroen Wortel]

Hi Maris,

thanks for the r.lake.
It sounds promising, I'll try it out for sure.

thanks,
-Jeroen.

  t 14:24 20-5-2006, Māris Nartišs wrote:
>Hi,
>
>I have to appologise for delay with r.lake. Not everything is going always as
>planed.
>
>I attached r.lake source code (no changes) and simple description file. I'm
>not english native speaking person and almost offline (expedition) and have
>no dictionary - feel free to correct my text.
>
>If I can help in any way - feel free to contact me.
>
>
>wbr,
>Maris.
>
>On Friday 19 May 2006 21:46, Jeroen Wortel wrote:
> > Hi Markus,
> >
> > Is the r.lake routine available?
> > We are doing some (simple) river inundation analysis as well;
> >
> > we create a raster map of our vector river model with value 1,
> > multiply this by the desired water (flood) height, add this to our
> > DEM and use r.mapcalc to extract all cells lower or equal to the
> > flood level. Then we convert this to a vector file, and extract the
> > polygon containing the main stream and the connected flooded areas
> > (which is one class as created by r.mapcalc).
> >
> > This works quite ok, but tends to be slow when there are lots of
> > islands (eg buildings) in the inundated area.
> >
> > How does r.lake work? I couldn't find anything in the docs.
> >
> > Thanks,
> >
> > -Jeroen.
> >
>


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