[gdal-dev] Batch Processing for gdal_calc.py

[Swapnil Chaudhari]

Hi Chaitanya,

Thank you for your response. I tried inserting the --format option. It
still gives me the same error.
I would be glad if you can describe the --scale function. It asks for
, [-scale [src_min src_max [dst_min dst_max]]]
How do you put a formula here? like "raster/10"

Thanks a ton! I think you have given me a way to do it.

Swapnil
  o__
 _> /__
(_) \(_)....... live healthy



On Fri, May 11, 2012 at 10:42 AM, Chaitanya kumar CH
<chaitanya.ch at gmail.com> wrote:
> Swapnil,
>
> You missed the --format option with gdal_calc. If you don't mention it, it
> assumes the default format, GeoTiff.
>
> Since the operation is simple, you should be able to do that using
> gdal_translate using the -scale option. It also has the -projwin option to
> select the extents.
>
> On Fri, May 11, 2012 at 9:59 AM, Swapnil Chaudhari <swapsslan at gmail.com>
> wrote:
>>
>> Dear All,
>>
>> I would like to get your advise on running gdal_calc using shell.
>> I am finding it difficult, mostly because the command requires you to
>> define what  -A stands for etc. which is quite different from
>> gdal_translate or such similar tools, so is the case with Raster
>> package in R.
>>
>> I wish to scale all the temperature ascii grids that I have for quite
>> a few number of folders.
>>
>> I wrote following sh file
>>
>> for f in *.tif
>> do
>>   echo "Processing $f"
>>   gdal_calc -A $f --outfile=$f_scaled.asc --calc=A/10
>> done
>>
>>
>> However, I am making a mistake somewhere, it does not read above
>> script as a command. I wish to divide all the rasters with 10 and also
>> equally wish to make all output files extent as "-projwin -180.0 90.0
>> 180.0 -60.0" and column 720 with rows 300
>>
>> I would be really thankful if you can give some suggestion on this.
>>
>> Thanks a ton.
>>
>> Swapnil Chaudhari
>>
>>   o__
>>  _> /__
>> (_) \(_)....... live healthy
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>> gdal-dev mailing list
>> gdal-dev at lists.osgeo.org
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>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
> +91-9494447584
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