hi > What are the thing or things you know know that you wish you'd known when you > started with OpenStreetMap? > I use the OSM tiles to teach javascript. 2 for loops for x,y and absolute positioning delivers a big map. That's cool.
For moving the map there are mouse events nessessary. And i can teach the mouse events. But than it switches to a completely different coordinate system. To use webservices that gives wgs84 from a place name is easy. But how to do the gps to xy transformations? I found some really nice formulas in the wiki, but it took a year or two until I found it. At the moment I search a bounds to center+zoom formula (no easy). I think I have seen it in the wiki, but can't find it anymore. If there would be an easy to find place with all the mathematical thing it would be very nice. bernhard _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
