[Gdal-dev] ECW registration information not recognised in ESRI

[Jacob Delfos]

Frank,

That fixed it. Even though ArcGIS cannot tell the projection, putting that option in makes it look at the coordinate values, and recognises them as degrees.

I would open a bug, but I lost my password, and the password reminders don't seem to arrive.... Is that a problem on my side?

Regards,

Jacob

-----Original Message-----
From: Frank Warmerdam [mailto:fwarmerdam at gmail.com] 
Sent: 10 June 2005 21:29
To: Delfos, Jacob
Cc: gdal-dev at remotesensing.org
Subject: Re: [Gdal-dev] ECW registration information not recognised in ESRI

On 6/9/05, Delfos, Jacob <jacob.delfos at maunsell.com> wrote:
> Have a bit of a mystery: 
> 
> I am translating some geotiffs to ecw. These geotiffs have their geographic
> information internally in the headers, as well as in a tfw file. They all
> translate fine, and the coordinate information in the ecw file is recognised
> in ESRI ArcGIS. 

Jacob, 

I would suggest trying to apply the coordinate system while you are
translating to ECW.  Adding '-a_srs WGS84' on the gdal_translate 
commandline should do the trick. 

A longer term solution on my part might be to apply a more 
appropriate dummy coordinate system instead of RAW if I am 
translating data with no coordinate system, but a meaningful
geotransform.  If you open a bug on this issue, I will look into it.
I may need Tom's advise on appropriate fallback coordinate systems
for coordinates that are apparently geodetic or projected.

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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