Re: PROJ grid files CDN
Martin Desruisseaux <[email protected]>
| Newsgroups | gmane.comp.gis.proj-4.devel |
|---|---|
| Organization | Geomatys |
| Message-ID | <[email protected]> |
Le 13/09/2019 à 20:38, Greg Troxel a écrit : > With this input, and this conversion string, I ran proj, and I > (silently) got different results. > The fact that since version 6, PROJ now has the capability to describe the operation that it performs (thanks to WKT 2), may change the perspective. This description includes whether the operation uses grid files or other methods, together with accuracy information. There is an education to do with the users, for encouraging them to look at this WKT string when they have doubts about what is going on. Is a grid file used? Is axis order the expected one? Is the transformation time-depend? Do I'm inside the operation domain of validity? I think it should almost become a reflex to ask users "What is your coordinate operation WKT" when an issue is suspected. In GeoTools, it was hugely helpful. Martin _______________________________________________ PROJ mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/proj