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

Tue Aug 30 11:13:52 PDT 2016

OK. I want to join the new github group, too.

Best regards,

Manfred

-----Original Message-----
From: "Julien Moquet" <moquet.julien at gmail.com>
Sent: Tuesday, August 30, 2016 1:04pm
To: "Luís de Sousa" <luis.de.sousa at protonmail.ch>
Cc: discuss at lists.osgeo.org, manfred at egger-gis.at
Subject: 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" <luis.de.sousa at protonmail.ch> 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 commit their .rst and .md files.
> Preparatory work would go around defining the templates to submit
> projections, data and systems.
>
> Who wants to join? I will create a group at GitHub and get this going in
> the coming days.
>
> Cheers,
>
> Luís
>
>
> -------- Original Message --------
> Subject: Re: [OSGeo-Discuss] Detect and define the coordinate system of
> gis data with no projection information automatically
> Local Time: 29 August 2016 11:03 PM
> UTC Time: 29 August 2016 21:03
> From: moquet.julien at gmail.com
> To: manfred at egger-gis.at
> luis.de.sousa at protonmail.ch,discuss at lists.osgeo.org
>
> 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 communities (I mean using the
> projection issues from them). It is costless, easy to share and manage, and
> may be we can get feed back faster than emailing epsg group !
> And I guess, lot of people do so !
>
> On the other hand, I learn from proj4php, that a github project could be a
> good database.
> As many of us see things differently, they will fork it their way.
> What do you think of ?
> I will tell if it is working, on spatialreference mailing list.
>
> Julien2512,
>
> 2016-08-29 14:45 GMT+02:00 manfred at egger-gis.at <manfred at egger-gis.at>:
>
>> 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" <luis.de.sousa at protonmail.ch>
>> Sent: Sunday, August 28, 2016 2:39pm
>> To: "manfred at egger-gis.at" <manfred at egger-gis.at>
>> Cc: discuss at lists.osgeo.org
>> Subject: 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 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: manfred at egger-gis.at
>> To: discuss at lists.osgeo.org
>>
>> 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_EGGE
>> R_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
>>
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