[Proj] [mapserver-users] Projection problems

Mikael Rittri Mikael.Rittri at carmenta.com
Wed Jan 12 10:40:18 EST 2011


The trunk version of proj/nad/epsg, at 


does seem to be based on the libgeotiff trunk. The entry for 
epsg:28992 (Amersfoort / RD New) has a correct +towgs84 parameter.

I am not sure if you can use Proj version 4.7.0 and just
replace its proj/nad/epsg file by the trunk version, 
since the trunk version might contain some new projection
types.  But it could be worth a try.

Mikael Rittri

-----Original Message-----
From: proj-bounces at lists.maptools.org [mailto:proj-bounces at lists.maptools.org] On Behalf Of Mikael Rittri
Sent: Monday, January 10, 2011 11:16 AM
To: PROJ.4 and general Projections Discussions
Cc: Milo van der Linden
Subject: Re: [Proj] [mapserver-users] Projection problems

Hello Jan,

Frank has recently done great improvements in the generation of a preferred datum shift for each datum in the EPSG database.
This is a more cumbersome task than one might think (trust me!). 

His improvements are visible in the trunk for libgeotiff, 


but are not included in the latest released version, libgeotiff 1.3.0 from May 2010.

I expect the improvements will eventually make it to Proj, I would guess version 4.8.0, but I don't know when that is planned.  Nor do I know if there is preliminary Proj/epsg file available that has been generated from the libgeotiff trunk. 


Mikael Rittri
Carmenta AB


From: proj-bounces at lists.maptools.org [mailto:proj-bounces at lists.maptools.org] On Behalf Of Jan Hartmann
Sent: Friday, January 07, 2011 3:50 PM
To: Milo van der Linden
Cc: proj at lists.maptools.org; mapserver-users at lists.osgeo.org; basvmrs
Subject: Re: [Proj] [mapserver-users] Projection problems

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