[Gdal-dev] gdal_merge fails to merge more than 4 input files

[Julien Demaria]

Frank,

the next DOS code passes all command line arguments to the python script :

rem Parse arguments
set args=
:loopargs
if !%1==! goto launch
set args=%args% %1
shift
goto loopargs
:launch

python "%FWTOOLS_DIR%\pymod\gdal_merge.py" %args%


Regards,

Julien

At 22:44 02/02/2005, Frank Warmerdam wrote:
>On Wed, 2 Feb 2005 16:22:29 -0500, Sarah Clapham <sbclaph at ftgrp.com> wrote:
> > Help!
> >
> > I am trying to apply the now familiar procedure of
> > reproject/merge/clip/compress to client image files in preparation for web
> > serving and am having trouble with gdal_merge failing to merge more than 4
> > input files.
>
>Sarah,
>
>I started out trying to think of all sorts of esoteric things that might be
>going wrong, and then it hit me.  In FWTools gdal_merge is a bat
>file and because I am a lame DOS bat-file person I use a very
>cludgy method to pass arguments on to the real gdal_merge.py
>pythong script.   The bat file looks like this:
>
>@python "%FWTOOLS_DIR%\pymod\gdal_merge.py" %1 %2 %3 %4 %5 %6 %7 %8 %9
>
>So basically, it only passes the first 9 arguments on, and the rest are
>discarded.  After your switches I guess there are only four more
>arguments passed on.
>
>I would encourage you to try invoking python directly with your
>arguments.  So something like:
>
>python %FWTOOLS_DIR%\pymod\gdal_merge.py  -v -n 0
>   -o ..\tif_org_merge\s-p05-13.tif s-p05-07.tif
>   s-p05-08.tif s-p05-09.tif s-p05-12.tif s-p05-13.tif s-p05-14.tif
>   s-p05-18.tif
>
>I would appreciate it if you could submit a bug on the FWTools
>bugzilla about this issue.  All my python script cover scripts have
>the same problem, but generally 9 args is plenty.  However, for
>gdal_merge it is not at all surprising that it is not enough.
>
>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
>and watch the world go round - Rush    | Geospatial Programmer for Rent
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