[GRASS-user] r.clip ... not clipping

[Nikos Alexandris]

* Helmut Kudrnovsky <hellik at web.de> [2018-08-17 00:18:01 -0700]:

>Rich Shepard wrote
>> On Wed, 15 Aug 2018, Vaclav Petras wrote:
>>
>>> See r.clip module in addons for equivalent of v.clip:
>>> https://grass.osgeo.org/grass74/manuals/addons/r.clip.html
>>
>> Vaclav,
>>
>>    r.clip is not working for me. I have a 13G DEM that I need to cut down
>> to
>> a more reasonable size. I set the region to a vector map of the county
>> boundary then run
>>
>> r.clip in=dem_west out=dem_left
>>
>> About 29 minutes later I see that the output file is the same size and
>> coverage as the input file. Doesn't matter if I use the '-r' option to
>> r.clip.
>>
>>    What am I missing?
>
>when you're not sure if a command/module is working as expected, it's always
>good to try the example with the NC sample data set mentioned in the
>manuals.
>
>th manual's example works here, see screenshot:
>raster_clip.jpg
><http://osgeo-org.1560.x6.nabble.com/file/t193444/raster_clip.jpg>
>
>without the commands you used (g.region, r.clip, etc), it's hard to find out
>what is missing.

@Rich,

compare `r.info -g dem_west` with `g.region -g`, after you have set the
region to the desired extent, of course. They should be different. And,
then, `r.info -g dem_left` should match the current extent (`g.region
-g`).

Nikos
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