Tag Archives: Overlay

MKTileOverlay with gdal2tiles or other TMS tiles

from iOS 7.0 onward there’s the neat MKTileOverlay::initWithURLTemplate: for tiled overlay maps. Sadly it can’t display old-school Tile Map Service maps as e.g. produced by gdal2tiles.py1) because the y-values are flipped upside down. The OSM Wiki says about this fact: „This is really just an unfortunate historical misalignment.“ But with the drop-in MKTileOverlay replacement below, you can […]