Hi devs, working with measure tools I found that "Ellipsoid for distance calculations" combobox from Map tools tab in QGIS options (Settings - Options) has duplicates. For example, there are tree WGS84 and two Clarke 1866 ellipsoids.
I look at code, then at default srs.db and here is what's I found. In srs.db we have two ellipsoids with similar names and different acronyms acronym | name | radius | parameter2 WGS84 | WGS 84 | a=6378137.0 | rf=298.257223563 IGNF:ELG053 | WGS84 | a=6378137.0000 | rf=298.2572235630000 same for Clarke 1866 ellipsoids acronym | name | radius | parameter2 clrk66 | Clarke 1866 | a=6378206.4 | b=6356583.8 IGNF:ELG004 | Clarke 1866 | a=6378206.4000 | rf=294.9786982000000 Combobox filled with values forom "name" column and this leads to duplicate (or very similar) items. Maybe it is better to display ellipsoids as "name - acronym" to avoid confusing? Or even remove this duplicate entries from srs.db? Also there is another problem. When "Ellipsoid for distance calculations" compo populated first of all added "None / Planimetric" item, after that values from srs.db. And finally "None / Planimetric" item is replaced with ellipsoid stored in settings here "/qgis/measure/ellipsoid". This replacement created duplicate entry of any ellipsoid, saved as default. For example, if I save "Airy 1830" as default and then close options dialog and open it again I'll get two "Airy 1830" entries in combo. I don't understand is this replacement necessary, maybe it should be removed? Thanks -- Alexander Bruy _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
