I am writing a small Mapnik viewer application using c++, much like the viewer demo application. I load a map from an XML file and I display it on screen.
In this application, I give the user the option to view the entire map in the window. I use the zoom_all() function to accomplish this, and it works fine. However, I also add a point_datasource() layer that dynamically shows a GPS position. When I do this, the zoom_all() function no longer works as expected. The map area is much larger than I would expect. I am thinking that my problem is that I do not specify the extent of the dynamic layer when I create it, but I am not sure how to do this. -- View this message in context: http://old.nabble.com/Mapnik-zoom_all-c%2B%2B-API-with-dynamic-layers-tp29990901p29990901.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
