[Proj] Transverse Mercator algorithm

Frank Warmerdam warmerdam at pobox.com
Tue May 27 11:52:08 EDT 2008

Oscar van Vlijmen wrote:
> In my opinion, there are 2 possibilities:
> * High accuracy.
> * Speed.


To state the obvious, computers are pretty fast now, so for many purposes
a TM variant that is quite a bit slower would be acceptable.

I would like to see a TM version that is very reversable well outside the
typical six degree swath around the central meridian.

Mostly I wish I could have a highly reversable TM variant that was exactly
the same as the existing TM approximation in at least one direction.  It is
the failure to reverse that is a nightmare for me.

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    | President OSGeo, http://osgeo.org

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