Because this conversion will not take place in QGIS but elsewhere, I need the underlying maths for the conversion, not the API method. I've now found the formula for EPSG:3857, and a method for all projections which works in Leaflet, here:
https://stackoverflow.com/questions/27545098/leaflet-calculating-meters-per-pixel-at-zoom-level Thanks Tom ----- Buy Pie Spy: Adventures in British pastry 2010-11 on Amazon -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-Developer-f4099106.html _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
