[Proj] Problem overlaying georeferenced images in Google, Maps(projection problem!)

Clifford J Mugnier cjmce at lsu.edu
Sat May 31 12:30:20 EDT 2008

I believe the easiest solution to that would be to correct that north shift by utilizing Rectifying Latitude for the International ellipsoid at the center of the area.  Don't know if that's in the PROJ4 Toolkit, though ...
Cliff Mugnier


From: proj-bounces at lists.maptools.org on behalf of support.mn at elisanet.fi
Sent: Sat 31-May-08 03:44
To: PROJ.4 and general Projections Discussions
Subject: Re: [Proj] Problem overlaying georeferenced images in Google,Maps(projection problem!)

More ideas...

The huge north shift, which is visible in your pictures,  is usually due
to the conversion between spherical and elliptical. There is a way to
go around that, but how it should be done in your case.... ???

Regards: Janne


>Now, the results in Google Earth:

>The image before reproyecting (UTM zone 30 datum ED50)

>The image reproyected

>What's the problem?:

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