Hi Giovanni On Thu, Jul 3, 2014 at 11:49 PM, G. Allegri <gioha...@gmail.com> wrote: > This topic comes back often, and in various situations I find me in a tight > spot when coming to explain the intricacies of the relationships between > these concepts.
I agree it would be good to address this finally. > Can we try to make the point on this, trying at least to layout a clean > "intersection matrix" between the various situations? > The concepts/tools involved in measurements and length/area calculations > are: > > - OTFR > - Project CRS (GRS/PRS) > - Measure Ellispoid > (- Unit of measure) Indeed it is important to identify all the possible cases and how they should be handled. We should probably also rethink how the information about the current mode of operation will be presented to the user. It should be easy to understand how changes of some settings affect other settings. Regards Martin _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
