On Wed, Sep 4, 2019 at 4:31 AM Anna Petrášová <kratocha...@gmail.com> wrote: > On Tue, Sep 3, 2019 at 4:22 AM Markus Metz <markus.metz.gisw...@gmail.com> > wrote: >> >> Hi all, >> >> there is a new PR for PROJ6 support in GRASS >> https://github.com/OSGeo/grass/pull/118 >> >> There are two important changes when using PROJ6: >> >> First, reprojection with v.proj and r.proj is no longer always possible >> without the user making informed decisions. The reason is that there can be >> several different operations available to reproject coordinates from one CRS >> to another CRS. These different operations are listed and the user has to >> provide the appropriate operation with the pipeline option, taking care of >> any axisswap. > > first, thanks for all the work. Second, I don't see how most users are > supposed to know what to pick. Is there perhaps a way to pick a good default? > I just can't imagine not having r.import/v.import...
I see the same problem: users won't know what to select if defaults are gone with PROJ 6. > Anna >> >> >> Second, axis order is no longer always easting, northing, e.g. for EPSG:4326 >> it is northing, easting, and an axisswap might need to be removed from >> operations provided by PROJ. >> >> There are many more changes (see details in the PR), but these are the two >> most important ones. >> >> Feedback welcome! Thanks for your hard work. I talked to Robert Bivand here at the GeoSTAT 2019 in Münster who gave a talk about the topic: "Not just R-spatial: sustaining open source geospatial software stacks" https://github.com/rsbivand/geostat19_talk You can quick-view the talk in rendered HTML like this (maybe there are better ways): http://htmlpreview.github.io/?https://raw.githubusercontent.com/rsbivand/geostat19_talk/master/docs/geostat_bivand_19.html It contains a section about PROJ (6). markusN _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-dev
