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Today's Topics:
1. Detect and define the coordinate system of gis data with no
projection information automatically ([email protected])
2. Re: Detect and define the coordinate system of gis data with
no projection information automatically (Luís de Sousa)
----------------------------------------------------------------------
Message: 1
Date: Sun, 28 Aug 2016 12:05:45 -0400 (EDT)
From: "[email protected]" <[email protected]>
To: [email protected]
Subject: [OSGeo-Discuss] Detect and define the coordinate system of
gis data with no projection information automatically
Message-ID: <[email protected]>
Content-Type: text/plain;charset=UTF-8
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
------------------------------
Message: 2
Date: Sun, 28 Aug 2016 14:39:11 -0400
From: Luís de Sousa <[email protected]>
To: "[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
Message-ID:
<JZYd9zHyZZl0BuJjelEaMT33jrLjAXtBNFdNEOrtRwNcTCHKwJZNQZZBdKfMx7rVIxnsLFTTJpXniesArieT-w==@protonmail.ch>
Content-Type: text/plain; charset="utf-8"
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
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