This page explains the internals of the OpenStreetMapView class and its companions.
Scrolling
Scrolling is now implemented with the Views standard scrolling mechanism: scrollTo(x,y), getScrollX(), getScrollY()
- Values depend on the current zoom level
- The world size in pixel is (2^zoomLevel x tileSize)
- Scroll values are signed, the center is at Lat=0, Lon=0
Zooming
There are two important zoom levels: * Tile zoom level * Pixel zoom level = TileZoomLevel + log2(TileSizePx)