[Proj] Several versions of the EGM96 grid

[Kristian Evers]

Joaquim,

In case you have some dataset that is defined in terms of EGM96 that you want to convert to something else, for instance.

In this particular case I have been using the egm96_15.gtx file for testing various grid-shifting operations for the vertical component in PROJ.4. I use the EGM96 grid because it is readily available in most grid distributions. Something that cannot be said about EGM2008 (i.e. not part of the OSGeo vdatums package).

/Kristian

-----Oprindelig meddelelse-----
Fra: proj-bounces at lists.maptools.org [mailto:proj-bounces at lists.maptools.org] På vegne af Joaquim Luis
Sendt: 5. oktober 2017 12:58
Til: PROJ.4 and general Projections Discussions <proj at lists.maptools.org>
Emne: Re: [Proj] Several versions of the EGM96 grid

And why still use the EGM96 instead of at least the EGM2008?

Joaquim 

Sent from my iDedo

No dia 05/10/2017, às 10:56, Kristian Evers <kreve at sdfe.dk> escreveu:

> Andre,
> 
> Well that clears that up. I see that you have already create a ticket with the OSGeo4W guys. Thanks!
> 
> /Kristian 
> 
> -----Oprindelig meddelelse-----
> Fra: proj-bounces at lists.maptools.org [mailto:proj-bounces at lists.maptools.org] På vegne af Andre Joost
> Sendt: 5. oktober 2017 11:38
> Til: proj at lists.maptools.org
> Emne: Re: [Proj] Several versions of the EGM96 grid
> 
>> Am 05.10.2017 um 11:31 schrieb Andre Joost:
>> 
>> If you look at:
>> 
>> http://download.osgeo.org/proj/vdatum/egm96_15/
>> 
>> You see a egm96_15-incorrect.gtx from 2010, and a "correct" one from 2014.
>> 
>> OSGEO4W64 has the one from 2010.
>> 
> 
> And the related ticket is .....:
> 
> https://github.com/OSGeo/proj.4/issues/126
> 
> So soemone should update the OSGEO4W file as well.
> 
> Greetings,
> André Joost
> 
> 
> _______________________________________________
> Proj mailing list
> Proj at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/proj
> _______________________________________________
> Proj mailing list
> Proj at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/proj
_______________________________________________
Proj mailing list
Proj at lists.maptools.org
http://lists.maptools.org/mailman/listinfo/proj