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<p>Hi all,</p>
<p>a public registry of all EPSG CRSs and their definitions is
provided by OGC since many years under <a class="moz-txt-link-freetext" href="http://www.opengis.net/">http://www.opengis.net/</a> .
For example, WGS 84 is accessible through
<a class="moz-txt-link-freetext" href="http://www.opengis.net/def/crs/EPSG/0/4326">http://www.opengis.net/def/crs/EPSG/0/4326</a> .</p>
<p>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).</p>
<p>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.<br>
</p>
<p>my 2 cents,</p>
<p>Peter</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 08/28/2016 08:39 PM, Luís de Sousa
wrote:<br>
</div>
<blockquote
cite="mid:JZYd9zHyZZl0BuJjelEaMT33jrLjAXtBNFdNEOrtRwNcTCHKwJZNQZZBdKfMx7rVIxnsLFTTJpXniesArieT-w==@protonmail.ch"
type="cite">
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<div>Dear Manfred,<br>
</div>
<div><br>
</div>
<div class="protonmail_signature_block ">
<div class="protonmail_signature_block-user ">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.<br>
</div>
<div class="protonmail_signature_block-user "><br>
</div>
<div class="protonmail_signature_block-user ">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.<br>
</div>
<div class="protonmail_signature_block-user "><br>
</div>
<div class="protonmail_signature_block-user ">Regards,<br>
</div>
<div class="protonmail_signature_block-user "><br>
</div>
<div class="protonmail_signature_block-user ">Luís<br>
</div>
<div class="protonmail_signature_block-user "><br>
</div>
<div class="protonmail_signature_block-user "><br>
</div>
<div class="protonmail_signature_block-proton
protonmail_signature_block-empty"><br>
</div>
</div>
<div><br>
</div>
<blockquote class="protonmail_quote" type="cite">
<div>-------- Original Message --------<br>
</div>
<div>Subject: [OSGeo-Discuss] Detect and define the coordinate
system of gis data with no projection information
automatically<br>
</div>
<div>Local Time: August 28, 2016 6:05 PM<br>
</div>
<div>UTC Time: August 28, 2016 4:05 PM<br>
</div>
<div>From: <a class="moz-txt-link-abbreviated" href="mailto:manfred@egger-gis.at">manfred@egger-gis.at</a><br>
</div>
<div>To: <a class="moz-txt-link-abbreviated" href="mailto:discuss@lists.osgeo.org">discuss@lists.osgeo.org</a><br>
</div>
<div><br>
</div>
<div>Hello,<br>
</div>
<div>
<br>
</div>
<div>
At FOSS4G 2016 in Bonn i talked with Venkatesh Raghavan about
my poster presentation "SHAPEFILE PROJECTIONFINDER". URL to
poster: <br>
</div>
<div>
<a class="moz-txt-link-freetext" href="http://www.egger-gis.at/app/download/13175253496/POSTER_EGGER_FOSS4G.pdf?t=1469787116">http://www.egger-gis.at/app/download/13175253496/POSTER_EGGER_FOSS4G.pdf?t=1469787116</a><br>
</div>
<div>
<br>
</div>
<div>
He recommended to start a discussion in this mailing list
about the topic mentioned in the mail subject. <br>
</div>
<div>
<br>
</div>
<div>
I also talked in Bonn with Petr Pridal about <a class="moz-txt-link-freetext" href="http://epsg.io">http://epsg.io</a>.
Some days before Bonn i wrote emails to Aaaron Racicot and the
mailing list of <a class="moz-txt-link-freetext" href="http://spatialrefrence.org">http://spatialrefrence.org</a>.<br>
</div>
<div>
<br>
</div>
<div>
Please read first carefully on my website, what i plan to do:<br>
</div>
<div>
<br>
</div>
<div>
<a class="moz-txt-link-freetext" href="http://www.egger-gis.at/shapefile-projectionfinder/">http://www.egger-gis.at/shapefile-projectionfinder/</a><br>
</div>
<div>
<br>
</div>
<div>
There are two problems to solve before tools like SHAPEFILE
PROJECTIONFINDER can be developed as a sustainable solution:<br>
</div>
<div>
<br>
</div>
<div>
1. Until today there is no stable free service running like
<a class="moz-txt-link-abbreviated" href="http://www.projfinder.com">www.projfinder.com</a> by Aaron Racicot, which can be used by all
developers.<br>
</div>
<div>
<br>
</div>
<div>
2. Until today there is no open source database which includes
all coordinate system with epsg-code and additionally user and
esri definded grids.<br>
</div>
<div>
<br>
</div>
<div>
There are open source solutions like:<br>
</div>
<div>
<br>
</div>
<div>
- spatialrefrence.org <br>
</div>
<div>
- epsg.io<br>
</div>
<div>
<br>
</div>
<div>
But in the detail both solutions have problems to update their
database with low costs.<br>
</div>
<div>
<br>
</div>
<div>
Maybe OSGeo can promote a stable service with load balancing
on the base of an existing solution like epsg.io including
Aarons idea? <br>
</div>
<div>
<br>
</div>
<div>
Maybe organisation like UN, a university or EU (INTERREG) are
possible project partners/sponsors for such a solution?<br>
</div>
<div>
<br>
</div>
<div>
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?<br>
</div>
<div>
<br>
</div>
<div>
What do you think about my idea?<br>
</div>
<div>
<br>
</div>
<div>
Best regards,<br>
</div>
<div>
<br>
</div>
<div>
Manfred Egger<br>
</div>
<div>
<br>
</div>
<div>
Alois-Schrott-Str. 34<br>
</div>
<div>
6020 Innsbruck<br>
</div>
<div>
Austria<br>
</div>
<div>
<br>
</div>
<div>
Web: <a class="moz-txt-link-freetext" href="http://egger-gis.at">http://egger-gis.at</a><br>
</div>
<div>
<br>
</div>
<div>
_______________________________________________<br>
</div>
<div>
Discuss mailing list<br>
</div>
<div>
<a class="moz-txt-link-abbreviated" href="mailto:Discuss@lists.osgeo.org">Discuss@lists.osgeo.org</a><br>
</div>
<div>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/discuss">http://lists.osgeo.org/mailman/listinfo/discuss</a><br>
</div>
</blockquote>
<div><br>
</div>
<br>
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<br>
<pre wrap="">_______________________________________________
Discuss mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Discuss@lists.osgeo.org">Discuss@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="http://lists.osgeo.org/mailman/listinfo/discuss">http://lists.osgeo.org/mailman/listinfo/discuss</a></pre>
</blockquote>
<br>
<pre class="moz-signature" cols="80">--
Dr. Peter Baumann
- Professor of Computer Science, Jacobs University Bremen
<a class="moz-txt-link-abbreviated" href="http://www.faculty.jacobs-university.de/pbaumann">www.faculty.jacobs-university.de/pbaumann</a>
mail: <a class="moz-txt-link-abbreviated" href="mailto:p.baumann@jacobs-university.de">p.baumann@jacobs-university.de</a>
tel: +49-421-200-3178, fax: +49-421-200-493178
- Executive Director, rasdaman GmbH Bremen (HRB 26793)
<a class="moz-txt-link-abbreviated" href="http://www.rasdaman.com">www.rasdaman.com</a>, mail: <a class="moz-txt-link-abbreviated" href="mailto:baumann@rasdaman.com">baumann@rasdaman.com</a>
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." (mail disclaimer, AD 1083)
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