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List:       osgeo-discuss
Subject:    Re: [OSGeo-Discuss] Attn: PROJ: Transverse and oblique Mercator
From:       Kristian Evers <kreve () sdfe ! dk>
Date:       2020-01-10 12:49:10
Message-ID: 49d2a99757d2496cbe374dd1a7f65e5f () sdfe ! dk
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Hi Pierre

This sounds like a question for the PROJ mailing list [0]. The transverse Mercator already
exists in a very accurate version in PROJ but if yours is both faster and better it is worth
considering. 

/Kristian

[0] https://lists.osgeo.org/mailman/listinfo/proj

-----Original Message-----
From: Discuss <discuss-bounces@lists.osgeo.org> On Behalf Of Pierre Abbat
Sent: 10. januar 2020 12:25
To: discuss@lists.osgeo.org
Subject: [OSGeo-Discuss] Attn: PROJ: Transverse and oblique Mercator

Jody Garnett posted on the incubator list some CONTRIBUTING files, one of which 
is at PROJ, so I've been looking around. I've written code that computes the 
transverse Mercator projection accurate to within 1 mm over 80% of the earth 
and 100  µm over 71%, that is, within 100  µm up to 45 ° from the central 
meridian. Are you interested?

I'd also like to understand the oblique Mercator well enough to write code for 
it and what the differences are (besides the obvious) between Alaska and 
Switzerland.

Pierre
-- 
loi mintu se ckaji danlu cu jmaji



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