[Qgis-user] Merging DEMs

[Mark Seibel]

Hi.

On Thu, May 29, 2014 at 9:25 AM, Randal Hale <
rjhale at northrivergeographic.com> wrote:

> I have two Digital Elevation Models - Imagine a square cut into two equal
> triangles.
>
> No matter how I do it - One DEM overwrites the other one so I'm only ever
> getting half of the elevation model I want when I merge them.
>
...

> Thoughts or ideas?
>
> Randy
>
>
> Is there a GRASS function in QGIS for r.patch?  It uses both datasets, and
uses one to fill the NULL values of another.  Would probably have to make
sure the computational region is set to accommodate the extent of merging
both DEMs (maybe not necessary if r.patch doesnt regard region settings).

Mark
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