[Proj] Having a CRS added in the common libraries

Brent Wood pcreso at yahoo.com
Mon Nov 23 14:07:42 EST 2015


On a related matter, I note that Frank Warmerdan has blogged on the 180 issue...http://fwarmerdam.blogspot.co.nz/2010/02/world-mapping.html
Coming from New Zealand, where this is a regular issue, is there any way the standard Proj CRS parameter lists could include 180-safe versions with the +over parameter as well as standard versions of at least the common projections spanning 180?
It could not be done with EPSG codes, as this is not actually a projection issue (the projection is the same- just the X coord space changes), but could perhaps be done within the Proj list, in a way which provides a few alternatives to facilitate plotting data spanning 180.
Regards,
  Brent Wood
     From: Even Rouault <even.rouault at spatialys.com>
 To: proj at lists.maptools.org 
Cc: "metacrs at lists.osgeo.org" <metacrs at lists.osgeo.org>
 Sent: Tuesday, November 24, 2015 4:53 AM
 Subject: Re: [Proj] Having a CRS added in the common libraries
   
Le lundi 23 novembre 2015 16:45:20, Stéphane Henriod a écrit :
> Thanks for your answer!
> 
> And if the change request is accepted, will it be automatically be added to
> the Proj4 library?

There's no such thing as "automatic" ;-) But if it is included in the EPSG 
database then it should be available in proj.4/GDAL/libgeotiff when the next 
resynchronization with the EPSG database is done 
(https://svn.osgeo.org/metacrs/geotiff/trunk/libgeotiff/csv/README)

> 
> Cheers
> 
> Stéphane
> 
> Le lundi 23 novembre 2015, Noel Zinn (cc) <ndzinn at comcast.net> a écrit :
> > The following link is for a change request for the EPSG Dataset.  You do
> > have to have an account, but that’s simple if you’ve never logged in
> > before.
> > 
> > http://www.epsg.org/MakeChangeRequest
> > 
> > 
> > Noel Zinn, Principal, Hydrometronics LLC
> > +1-832-539-1472 (office), +1-281-221-0051 (cell)
> > noel.zinn at hydrometronics.com
> > <javascript:_e(%7B%7D,'cvml','noel.zinn at hydrometronics.com');> (email)
> > http://www.hydrometronics.com (website)
> > 
> > *From:* Stéphane Henriod <javascript:_e(%7B%7D,'cvml','s at henriod.info');>
> > *Sent:* Monday, November 23, 2015 5:40 AM
> > *To:* proj at lists.maptools.org
> > <javascript:_e(%7B%7D,'cvml','proj at lists.maptools.org');> ;
> > metacrs at lists.osgeo.org
> > <javascript:_e(%7B%7D,'cvml','metacrs at lists.osgeo.org');>
> > *Subject:* [Proj] Having a CRS added in the common libraries
> > 
> > Dear all
> > 
> > I am new to both lists (proj and metacrs) so my apologies for
> > cross-posting, I am not quite sure where my question belongs.
> > 
> > I am working in the beautiful country of Kyrgyzstan, which happens to
> > have developed a new national geodetic framework. One of the outputs is
> > a coordinate system (Kyrg06), divided in 5 zones.
> > 
> > As far as I know, this coordinate system is not yet available in any
> > common library / software and is neither in the EPSG list.
> > 
> > Is there any standard process to get a sort of international recognition?
> > This system has been approved by the government and thus has a legal
> > validity in this country. But it will always be difficult to convince
> > people to use it as long as it's not readily available in the common
> > software (and thus in the underlying libraries). As a result, many GIS
> > users end up working with UTM or other not-so-optimal.
> > 
> > Thanks a lot in advance for your hints and advice on this matter
> > 
> > Cheers
> > 
> > Stéphane
> > 
> > 
> > --
> > 
> > "Le mot progrès n'aura aucun sens tant qu'il y aura des enfants
> > malheureux" -- Albert Einstein
> > 
> > "Si les contacts avec les étrangers lui étaient permis, [le citoyen
> > ordinaire] découvrirait que ce sont des créatures semblables à lui-même
> > et que la plus grande partie de ce qu'on lui a raconté d'eux est fausse.
> > Le monde fermé, scellé, dans lequel il vit, serait brisé, et la crainte,
> > la haine, la certitude de son bon droit, desquelles dépend sa morale,
> > pourraient disparaître" -- George Orwell ("1984")
> > 
> > “When you travel, remember that a foreign country is not designed to make
> > you comfortable. It is designed to make its own people comfortable." --
> > Clifton Fadiman
> > 
> > Photos de voyages, photos de montagne: http://www.henriod.info
> > 
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Spatialys - Geospatial professional services
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