light-map
a light-weight XYZ tile map viewer with a Canvas2D renderer
a light-weight XYZ tile map viewer with a Canvas2D renderer
Work with the web mercator projection.
Parse UTM northing and easting from text input
Tile System math for the Spherical Mercator projection coordinate system (EPSG:3857)
Find the geographic projection which best turns a given (X,Y) into an expected (lng, lat).