[GRASS-user] Clip/Extract Rasters using a vector

[Andrew Lewin]

Here is the error:

GRASS 6.4.0RC6 (MacrophytesGIS):~/grass/MacrophytesGIS/PERMANENT > natemp20092010=mynatempnewrast + 0 | r.mapcalc
bash: +: command not found
syntax error, unexpected $end, expecting NAME or STRING
Parse error

Andrew

Andrew Lewin
andrew.lewin at sympatico.ca

President 
Coastal/Marine Spatial Ecologist
Spatial-Conserve Incorporated

Associate 
C-FOAM (Canadian Fisheries, Oceans and Aquaculture Management Group)
Telfer School of Management, University of Ottawa







On 2010-09-20, at 12:59 PM, Mark Seibel wrote:

> Would you please post your command syntax, and associated error?
> 
> Mark
> 
> "Andrew Lewin" <andrew.lewin at sympatico.ca> wrote:
> 
>> Hi John and Mark,
>> 
>> I am getting a syntax error when I type in either of your statements.  To be clear, I am using Mac Snow Leopard in the Terminal program (bash).  
>> 
>> Cheers,
>> 
>> Andrew
>> 
>> Andrew Lewin
>> andrew.lewin at sympatico.ca
>> 
>> President 
>> Coastal/Marine Spatial Ecologist
>> Spatial-Conserve Incorporated
>> 
>> Associate 
>> C-FOAM (Canadian Fisheries, Oceans and Aquaculture Management Group)
>> Telfer School of Management, University of Ottawa
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> On 2010-09-16, at 12:22 PM, John C. Tull wrote:
>> 
>>> Correct me if I am wrong, but for step 3, you can simply use an equality statement, i.e., echo clippedRaster=NA_temperature | r.mapcalc'. This shortens things a little further.
>>> 
>>> Regards,
>>> John
>>> 
>>> On Sep 16, 2010, at 8:41 AM, Mark Seibel wrote:
>>> 
>>>> Surely there is a more elegant way...
>>>> 
>>>> 1) Convert the vector you wish to use as a clipper to a raster.
>>>> 2) Set the raster mask to be the raster clipper (the converted vector).
>>>> 3) Use map calculator to perform some non-data altering operation, but
>>>> get the mask to do its thing (eg. echo 'clippedRaster=NA_temperature +
>>>> 0 | r.mapcalc').
>>>> 
>>>> Mark
>>>> 
>>>> On Thu, Sep 16, 2010 at 10:52 AM, Andrew Lewin
>>>> <andrew.lewin at sympatico.ca> wrote:
>>>>> Dear Listers,
>>>>> I would like to clip or extract a raster using a vector file; however, I
>>>>> can't seem to find the command to do this in GRASS 6.4 ORC6.  The raster
>>>>> file is an interpolated file of temperature for North America.  The raster
>>>>> file extends beyond the North America boundaries. I would like to clip the
>>>>> raster file to the North American boundaries, but I cannot find the command
>>>>> to do so.
>>>>> I would appreciate any help possible.
>>>>> Thank You,
>>>>> Andrew
>>>>> Andrew Lewin
>>>>> andrew.lewin at sympatico.ca
>>>>> 
>>>>> President
>>>>> Coastal/Marine Spatial Ecologist
>>>>> Spatial-Conserve Incorporated
>>>>> Associate
>>>>> C-FOAM (Canadian Fisheries, Oceans and Aquaculture Management Group)
>>>>> Telfer School of Management, University of Ottawa
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> grass-user mailing list
>>>>> grass-user at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/grass-user
>>>>> 
>>>>> 
>>>> _______________________________________________
>>>> grass-user mailing list
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>>> 
>>> 
>> 
> 
> -- 
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
> 

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