Hi all! I have been invited to the first Open Source Conference on GIS and Remote Sensing in Costa Rica, part of the Geo For All, since I have been a devout follower of PROJ, GDAL and QGIS. I think it is a great opportunity to explain the way in which coordinate reference systems are implemented and used in software such as QGIS that are used by end users that do not necessarily understand the complexity of such developments.
I want to promote the initiative "/GDAL Coordinate System Barn Raising/" because in Costa Rica has recently been a change of CRS - from CRTM05 (EPSG 5367) to CR-SIRGAS (EPSG 8909) - this is a hot topic at this moment. I want to be able to explain how is the development and implementation of the CRS and how they arrive at softwares like QGIS that are used by end users with different skill levels. I've been talking to Even Rouault from PROJ about the new GDAL Coordinate System Barn Raising and how this affects the final users of softwares like QGIS and PostgreSQL / PostGIS. for QGIS users, I have the following: Even told me: "/From what I've understood, PostGIS will still ship its spatial_ref_sys.sql database (since it is part of its user visible surface), and will so have to refresh it regularly from the PROJ database. For QGIS, I think the intent will be to use ultimately the PROJ database/" "/...Will require all QGIS builds to use PROJ 6/" Now this, makes me the following question: if PROJ already contains the new CRS CR-SIRGAS (8909) according to this commit https://github.com/OSGeo/proj.4/pull/1368. QGIS would have to implement the new PROJ6 so that users here in CR can have access to the new CRS. however, this I suppose, is planned for the version QGIS 3.8 What generates me doubt is how is it going to be handled with the QGIS LTR version? in other words, how QGIS will handle the updates of the new coordinate reference systems? Is a new version required each time? or can they be updated by a pointreleases? I think many countries are on track to continue updating the CRS and I want to know how QGIS is going to be maintained with the most up-to-date EPSG databases. this in order to be able to explain to the users of QGIS here in CR how it is expected to implement the update of the new CR-SIRGAS (8909) Since many governmental institutions currently use QGIS for their daily processes. Thank you very much for the help in this topic. ----- Eduardo Rojas Rodríguez Analista en SIG SOLTIG Tel: (506) 2435-8868 / (506) 4001-5214 [email protected] http://soltig.net -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-Developer-f4099106.html _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
