Hi devs, We want to improve the QGIS measure tool to make possible distance measurements in unprojected sessions when latlong data is loaded. This is helpful when you don't want to project your data for some reason, but still would like to measure distance in meters. For this we were willing to use QgsDistanceArea::computeDistanceBearing() which already has Vincenty formulae.
But, at this time QgsDistanceArea::computeDistanceBearing() requires projection and ellipsoid to be already set before calling it. We want to modify QgsDistanceArea::computeDistanceBearing() to add ability to do measurements without reprojection or coordinate transform, but passing Ellipsoid as one of the parameters. But we unsure is this safe because Measure tool doesn't create it's own instance of QgsDistanceArea but get it from map renderer. Any thoughts on this? Thanks -- Alexander Bruy _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
