Thanks for the clarification Andrea. Reading the threads and pull requests is a fascinating look into the muddy waters of really small numbers and curved areas.
On Tue, Jan 4, 2022 at 10:07 PM Andrea Giudiceandrea <andreaer...@libero.it> wrote: > Sebastian Gutwein > <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=from:%22Sebastian+Gutwein%22> > Mon, 03 Jan 2022 05:44:08 -0800 > <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=date:20220103> > > If I am reading the pull requests > correctly even Grass has switched to the Geographic Lib method. > > > Hi Sebastian, > AFAIK, GRASS GIS has not yet switched to the GeographicLib routines. > See the feature request https://github.com/OSGeo/grass/issues/1235 not > yet closed and the related PR https://github.com/OSGeo/grass/pull/1283 in > draft status and not yet merged. > > Sadowski Jarosław > <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=from:%22Sadowski+Jaros%C5%82aw%22> > Sun, 02 Jan 2022 23:58:06 -0800 > <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=date:20220102> > > I must admit that, for me as a GIS operator, it is surprising and sounds like > bad news - so far surfaces have always been the same in various GIS software, > whether or not it was open-source or commercial (ArcGIS Pro). So from this > moment it will be that I will get different surfaces depending on the software > it was calculated? :( > > > Hi Jarosław, > it seems to me the calculation of a polygon area on the ellipsoid was > always not the same in different GIS software. > See, for example, these long threads at > https://www.mail-archive.com/qgis-developer@lists.osgeo.org/msg43978.html > and > https://www.mail-archive.com/qgis-developer@lists.osgeo.org/msg43978.html > > Best regards. > > > Andrea Giudiceandrea > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > -- Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com (631) 241-1018
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