Module usagi::web_mercator [−][src]
Web Mercator utilities
Modules
| consts |
Functions
| angle_to_pixel |
Calc a pixel positions from an angles return: ( x [px], y [px] ) |
| angle_to_tile |
Calc a tile address from an angles longitude, latitude: [deg] return: ( x [tiles], y [tiles] ) |
| meters_per_pixel |
Calc a resolution of a latitude return: resolution [m/px] |
| pixel_to_angle |
Calc angles form pixel positions x, y: pixel position [px] return ( longitude, laitutde ) |
| pixel_to_tile |
Calc a tile address from a pixel positions x, y: pixel position [px] return: ( x [tiles], y [tiles] ) |
| pixels_in_arris |
Calc a pixel count of an arris return: pixel count [px] |
| to_lower_tile | |
| to_upper_tiles |