Re: [gdal-dev] Non documented (nice, uf) behaviour

2009-01-27 Thread Frank Warmerdam

Joaquim Luis wrote:

Hi,

Still on the ps2raster issue that I mentioned 2 days ago, I was getting 
a mysterious crashing
in Windows when executing a system call with a gdal_translate command. 
The is not related to

GDAL at all but maybe to the quotes needed to wrap the +proj=... arguments.
I finally managed to solve the issue by writing the proj string into a 
file and use that

file as argument to -a_srs

But the man page states that " ... or a file WKT"

-a_srs srs_def:
Override the projection for the output file. The srs_def may be any of 
the usual GDAL/OGR forms, complete WKT, PROJ.4, EPSG:n or a file 
containing the WKT.



I'm not complaining (well on the contrary), but we may need to document 
this.
Since what version is it possible to provide a Proj4 string in a file 
for -a_srs?


Joaquim,

Underlying the -a_srs function is the OGRSpatialReference::SetFromUserInput()
method which does mention that proj.4 strings are accepted from a file.  The
problem is that it is not really practical to describe all coordinate
system specification methods everywhere they are used.

I have added a brief note in the introductory material on the utilities pages
indicating files with several formats are supported.

Best regards,
--
---+--
I set the clouds in motion - turn up   | Frank Warmerdam, warmer...@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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Re: [gdal-dev] Non documented (nice, uf) behaviour

2009-01-27 Thread Joaquim Luis


I'm not complaining (well on the contrary), but we may need to 
document this.
Since what version is it possible to provide a Proj4 string in a file 
for -a_srs?


Joaquim,

Underlying the -a_srs function is the 
OGRSpatialReference::SetFromUserInput()
method which does mention that proj.4 strings are accepted from a file.  
The

problem is that it is not really practical to describe all coordinate
system specification methods everywhere they are used.

I have added a brief note in the introductory material on the utilities 
pages

indicating files with several formats are supported.


Frank,

Thanks and sorry for not be clear enough. When I said "we" I was thinking on the
GMT, because if it was a very new thing we could have to warn users to have
"a such" GDAL version.

Joaquim
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