Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Dear all, thank you for the many contributions to this discussion. Some background: If you have not done so, please watch the address by Calvin Metcalf on Proj [0]. From his reflections and the discussion that ensued it became apparent to me that presently there is no CRS/projection registry

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Thank you Dirk, I was missing that part from Peter answer. I fully understand that the solution we want to build need to respect existing services. And I wasn't suspect how many registry there was ! Regards, Julien. 2016-09-02 9:38 GMT+02:00 Dirk Frigne : > Peter, >

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Yes... this conversation has kind of morphed. The projfinder.com idea started as a side project in collaboration with the cugos.org group. The idea is simple... Given a dataset with an unknown projection: 1) Have the end user give a "rough estimate" of the geo-location of the dataset by

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Foks, I read through the emails of this thread and I'm still not sure to understand what the exact focus would be. It seems it might go beyond the title of this email thread. Is it about documentation about projections ? If so, I guess improving proj.4 documentation could be appreciated.

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Peter, Carl, Thank you for your valuable input to the discussion, For me it is clear, as Peter suggests that improvements should be build on top of what exists, and is carefully validated. Dirk. On 2016-09-02 01:45, Carl Reed wrote: Julien - The EPSG is what the OGC considers normative.

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Julien - The EPSG is what the OGC considers normative. This is because there are humans in the loop that process requests for new a CRS to be added to the EPSG database. The humans are geodesy experts who validate the "correctness" or validity of a submitted CRS. After review, most submitted CRSs

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi Peter, How open is the OGC registry ? If data came from EPSG, it will not be really open : they never answer the request I sent. I think it's a human scalability problem (not really maintained). The idea is to make an open registry. May be it can use OGC registry, but projects might want to

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi Manfred, On 09/01/2016 05:55 PM, manf...@egger-gis.at 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 >

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hello Peter, Sorry, I have never heard of this standard. 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/ To Luí­s: Maybe before we start with a new datamodel and templates, we should look what

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

OK. I will send a request in the next days to OSGeo about my wiki-page. One question about github: Is it possible to run something like a "servlet" on github, which answers requests? I think not? Maybe we have later to setup a additional webserver, which uses github as database. So thats not

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

I am julien2512 :) Le 31 août 2016 8:17 AM, "Luí­s de Sousa" a écrit : > Good, three is already a group! > > The strategy will be to define the data model and the templates while in > parallel requiring formal endorsement from OSGeo. A project like this can > only

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi Nikos, I would like to create a core group composed mostly by (but not restricted to) charter members to steer the project. Therefore, even if you are not able to contribute much, you can always help with knowledge and decision making. Over the weekend I will create a GitHub group and a

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

https://github.com/maegger Until today i am no member of OSGeo. So is there a way to get a member of OSGeo? Best regards Manfred -Original Message- From: "Luí­s de Sousa" Sent: Wednesday, August 31, 2016 2:17am To: "manf...@egger-gis.at"

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

OK. I want to join the new github group, too. Best regards, Manfred -Original Message- From: "Julien Moquet" Sent: Tuesday, August 30, 2016 1:04pm To: "Luí­s de Sousa" Cc: discuss@lists.osgeo.org, manf...@egger-gis.at Subject: Re:

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Set me into ! Julien. Le 30 août 2016 11:34, "Luí­s de Sousa" a écrit : > Hi Julien et al., > > My experience with Wikis is mostly negative, however, the GitHub > "database" could work very well. The project could be hooked up to > ReadTheDocs and folk would just

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi, should there not be a decision by OSGeo to promote a database before we start to collect data in github? Best regards, Manfred -Original Message- From: "Luí­s de Sousa" Sent: Tuesday, August 30, 2016 5:34am To: "Julien Moquet"

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi Julien et al., My experience with Wikis is mostly negative, however, the GitHub "database" could work very well. The project could be hooked up to ReadTheDocs and folk would just commit their .rst and .md files. Preparatory work would go around defining the templates to submit projections,

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Hi all, I am agree with manfred and Luis : we can improve spatial reference data a lot ! It is a good idea to extend it to mathematical definitions, but its sounds like a wiki. I propose to start checking up wikipedia's data over projection references and mathematical models, up to the proj4's

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

Dear Luis, Which concrete detail is not clear about the projection finder project? Maybe a look at the testservice of Aaron will help to understand this idea: www.projfinder.com ? Best regards, Manfred -Original Message- From: "Luí­s de Sousa" Sent:

Re: [OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

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

[OSGeo-Discuss] Detect and define the coordinate system of gis data with no projection information automatically

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