Hello Georges
Le 12/07/2017 à 17:43, George Percivall a écrit :
> During the OGC CRS working group meeting I raised some comments I have
> heard about the need for open source to move to CRS2. I believe Apache
> SIS has moved to CRS2 sometime ago, so that is less an issue for this
> Apache geospatial group.
>
Yes, Apache SIS moved to Coordinate Reference System (CRS) Well Known
Text (WKT) 2 early. I also hope to update it to the new ISO 19111
revision quickly after its approval. For other open source projects, I'm
still working on the "WKT2 parsing for Proj4 using SIS" demo (I was
hopping to finish it yesterday, but have been delayed).
> A part of my comments were about using SQLite to distribute the ESPG
> database. The topic was not adequately discussed in the CRS WG and
> possibly I did not express the comment correctly. Apparently some open
> source projects use SQLite internally to manage definition
> dictionaries. In any case if EPSG chose to distribute its database in
> SQLite, it seems that elements of GeoPackage would be a quick way to
> get that done.
>
In Apache SIS we use EPSG on PostgreSQL, Derby or HSQL at user's choice.
Not yet on SQLite, but this may happen as a side-effect of the Google
Summer of Code work on Android. Maybe other open sources project already
use EPSG on SQLite, but I do not know which one. However the Proj4
community had a discussion 2 years ago about replacing their CSV files
by EPSG on SQLite [1]. But I'm not aware of progress done since that
discussion.
> Should the OGC Testbeds include a requirement "test interoperability
> of CRS2 implementations”? We are currently planning Testbed 14 that
> will begin later this year, so now is the time to frame this as a good
> requirement and seek sponsors. Interested in your discussions.
>
Yes, I would I would like to see such Testbed. OGC already has some
material in GeoAPI that can be used as a starting point, if desired. I
could help adapting them to Testbed needs. How should we processed for
making such proposal?
Martin
[1]
http://osgeo-org.1560.x6.nabble.com/Re-Proj-Common-SQLite-based-dictionaries-tt5218299.html
