[gdal-dev] Working between GeoTIFF's and Arc/Info ASCII Grid formats with NAN values

[Roger André]

ROTFL  "You could also potentially do it with by ascii search and replace in
the resulting grid file"

You are SO right!  I had totally forgotten that this was ASCII output.  Doh!

Thanks Frank.
--



On Tue, Dec 9, 2008 at 5:24 PM, Frank Warmerdam <warmerdam at pobox.com> wrote:

> Roger André wrote:
>
>> Hi All,
>>
>> Just had an email from a client complaining about the "nan" values that I
>> included in some Arc/Info ASCII Grid files that I sent them.  The files were
>> created by converting GeoTIFF's into ASCII Grid format via gdal_translate.
>>  I personally like that the "nan's" were carried through, but I would like
>> to know if there is a way that I can map the "nan" into a "-9999" value via
>> the gdal utilities?
>>
>
> Roger,
>
> I'm not aware of a way to convert NaN values to an actual value with the
> GDAL command line utilities.  You could accomplish this with a program,
> or a python script.  You could also potentially do it with by ascii
> search and replace in the resulting grid file.
>
> Best regards,
> --
>
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam,
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam<http://pobox.com/%7Ewarmerdam>
> and watch the world go round - Rush    | Geospatial Programmer for Rent
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/gdal-dev/attachments/20081209/2770cd48/attachment.html