Hi Manfred, On 09/01/2016 05:55 PM, [email protected] wrote: > Hello Peter, > > Sorry, I have never heard of this standard.
it is not a standard, it is a service offered by OGC (and based on standards). > Is there a existing sample application using this database by OGC? Is there a > simple way to get the WKT like: > http://www.epsg-registry.org/ the link below yields GML. Other representations can be added - for example, the activist group establishing here might submit WKT representations; better, though, would be a tool for converting from GML as EPSG does updates every now and then. Such a tool might get extended at some time to also deliver JSON representations. Ideally it would do that on the fly whenever a CRS definition is requested. But now I am jumping ahead - obviously there is good room for extension and further services, at the same time avoiding duplication of effort. cheers, Peter PS: note that this service endpoint is mainly for m2m requests, not so much for human inspection. Another facet for discussion. PS2: the underlying service software is open-source (LGPL), might be of interest, too. > To Luís: Maybe before we start with a new datamodel and templates, we should > look what solutions exist and collect them in the github project and then > decide? > > Best regards, > > Manfred > > > > -----Original Message----- > From: "Peter Baumann" <[email protected]> > Sent: Thursday, September 1, 2016 3:20am > To: "Luís de Sousa" <[email protected]>, "[email protected]" > <[email protected]> > Cc: [email protected] > Subject: Re: [OSGeo-Discuss] Detect and define the coordinate system of gis > data with no projection information automatically > > Hi all, > > a public registry of all EPSG CRSs and their definitions is provided by OGC > since many years under http://www.opengis.net/ . For example, WGS 84 is > accessible through http://www.opengis.net/def/crs/EPSG/0/4326 . > > This service is kept in sync with EPSG releases and adds further CRS families, > such as Index CRSs and height CRSs and in future, once definitions are > resolved > by OGC, also time ("temporal") CRSs. Arrangement has been made to also host > Planetary CRS definitions of the International Astronomical Union (IAU). > > Repeating (part of) this comprehensive (and authoritative) work may be less > fruitful, but building additional services on top of that might make a lot of > sense indeed. > > my 2 cents, > > Peter > > > > On 08/28/2016 08:39 PM, Luís de Sousa wrote: >> Dear Manfred, >> >> The projection finder project is not entirely clear to me, however, the >> suggestion for a new coordinate system database is indeed pertinent. This was >> referred in other addresses at the conference: spatialreference.org has not >> been maintained for several years; parts of proj4 are not, or poorly, >> maintained. >> >> Besides a reference system database, it would also be quite useful to have a >> projection data base, including mathematical definitions, map sketches of >> their ouput and some clues or guidelines to its implementation (e.g. >> pseudo-code algorithms). This information is today very dispersed in the web. >> >> Regards, >> >> Luís >> >> >> >> >>> -------- Original Message -------- >>> Subject: [OSGeo-Discuss] Detect and define the coordinate system of gis data >>> with no projection information automatically >>> Local Time: August 28, 2016 6:05 PM >>> UTC Time: August 28, 2016 4:05 PM >>> From: [email protected] >>> To: [email protected] >>> >>> Hello, >>> >>> At FOSS4G 2016 in Bonn i talked with Venkatesh Raghavan about my poster >>> presentation "SHAPEFILE PROJECTIONFINDER". URL to poster: >>> http://www.egger-gis.at/app/download/13175253496/POSTER_EGGER_FOSS4G.pdf?t=1469787116 >>> >>> He recommended to start a discussion in this mailing list about the topic >>> mentioned in the mail subject. >>> >>> I also talked in Bonn with Petr Pridal about http://epsg.io. Some days >>> before >>> Bonn i wrote emails to Aaaron Racicot and the mailing list of >>> http://spatialrefrence.org. >>> >>> Please read first carefully on my website, what i plan to do: >>> >>> http://www.egger-gis.at/shapefile-projectionfinder/ >>> >>> There are two problems to solve before tools like SHAPEFILE PROJECTIONFINDER >>> can be developed as a sustainable solution: >>> >>> 1. Until today there is no stable free service running like >>> www.projfinder.com by Aaron Racicot, which can be used by all developers. >>> >>> 2. Until today there is no open source database which includes all >>> coordinate >>> system with epsg-code and additionally user and esri definded grids. >>> >>> There are open source solutions like: >>> >>> - spatialrefrence.org >>> - epsg.io >>> >>> But in the detail both solutions have problems to update their database with >>> low costs. >>> >>> Maybe OSGeo can promote a stable service with load balancing on the base of >>> an existing solution like epsg.io including Aarons idea? >>> >>> Maybe organisation like UN, a university or EU (INTERREG) are possible >>> project partners/sponsors for such a solution? >>> >>> The goal is: Tools like SHAPEFILE PROJECTIONFINDER, a Q-GIS-Plugin or a >>> mobile application can use a stable free gis-service updated daily and help >>> gis users to solve projection troubles faster. I think gis users working not >>> everyday with gis will be happy about this solutions? >>> >>> What do you think about my idea? >>> >>> Best regards, >>> >>> Manfred Egger >>> >>> Alois-Schrott-Str. 34 >>> 6020 Innsbruck >>> Austria >>> >>> Web: http://egger-gis.at >>> >>> _______________________________________________ >>> Discuss mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/discuss >> >> >> _______________________________________________ >> Discuss mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/discuss -- Dr. Peter Baumann - Professor of Computer Science, Jacobs University Bremen www.faculty.jacobs-university.de/pbaumann mail: [email protected] tel: +49-421-200-3178, fax: +49-421-200-493178 - Executive Director, rasdaman GmbH Bremen (HRB 26793) www.rasdaman.com, mail: [email protected] tel: 0800-rasdaman, fax: 0800-rasdafax, mobile: +49-173-5837882 "Si forte in alienas manus oberraverit hec peregrina epistola incertis ventis dimissa, sed Deo commendata, precamur ut ei reddatur cui soli destinata, nec preripiat quisquam non sibi parata." 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