Hi Carl,
2009/1/11 Carl Johansson <[email protected]>: > > Hi Artem > > You're right, just subscribed. > > Again you are right, I want to turn screen coordinates into real world ones > and from there on I will be able to turn them into MGRS rather than just > UTM. > > I've been trying this with the simple viewer: > > CoordTransform > t(map_->getWidth(),map_->getHeight(),map_->getCurrentExtent()); > double x = (double) e->x(); > double y = (double) e->y(); > coord2d coord; > coord = coord2d(x, y); > t.backward(coord); > std::cout << coord << std::endl; > > Stockholm, Sweden is here coord2(1614085.074371404,6574896.886350079). > > Now I've really been trying to figure out what this represents but I > couldn't find it anywhere. OK, you get world coordinates in your Map (master) projection. Looks like Mercator to me, but better check your *.xml file. HTH Artem > > Best regards, > Carl > > > Artem Pavlenko-5 wrote: >> >> Hi Carl, >> >> Could you provide more details. Are you not sure how to translate 'screen' >> coordinates into 'world' ? Or do you want to re-project them into UTM also >> ? >> >> Please, consider subscribing to mapnik-users as anonymous postings are not >> allowed. >> >> Regards >> Artem >> >> 2009/1/2 Carl Johansson <[email protected]> >> >>> >>> Hi, >>> >>> I've been trying to get a QString representation of the UTM coordinate >>> pressed at in the Mapnik Viewer. Now I think that I should use some >>> member >>> of CoordTransform passing it the coordinates from the widget. However >>> that's >>> where I get rather lost. Could anyone point me in the right direction? >>> Already tried looking at posts like >>> >>> http://www.nabble.com/how-to-put-a-symbol-in-a-given-coord--tp19164492p19164492.html >>> . >>> >>> Carl >>> -- >>> View this message in context: >>> http://www.nabble.com/Getting-UTM-coordinates-from-Mapnik-Viewer-tp21250174p21250174.html >>> Sent from the Mapnik - Users mailing list archive at Nabble.com. >>> >>> _______________________________________________ >>> Mapnik-users mailing list >>> [email protected] >>> https://lists.berlios.de/mailman/listinfo/mapnik-users >>> >> >> _______________________________________________ >> Mapnik-users mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/mapnik-users >> >> > > -- > View this message in context: > http://www.nabble.com/Re%3A-Getting-UTM-coordinates-from-Mapnik-Viewer-tp21370149p21405648.html > Sent from the Mapnik - Users mailing list archive at Nabble.com. > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
