latlong_to_pixelXY {quadkeyr} | R Documentation |
Convert lat/long coordinates to pixel XY coordinates
Description
Converts a point from latitude/longitude WGS-84 coordinates (in degrees) into pixel XY coordinates at a specified zoom level. For further information, refer to the Microsoft Bing Maps Tile System documentation.
Usage
latlong_to_pixelXY(lat, lon, zoom)
Arguments
lat |
Latitude of the point, in degrees. |
lon |
Longitude of the point, in degrees. |
zoom |
Zoom or level of detail, from 1 (lowest detail) to 23 (highest detail). |
Details
Converting latitude/longitude coordinates into a QuadKey and then back to latitude/longitude won't yield identical values, unless the initial latitude/longitude coordinates correspond to the upper-left Quadkey's pixel and tile XY coordinates at the same zoom level.
Understanding this distinction is crucial for the accurate use of these functions in coordinate conversions.
For a detailed explanation on how to use this
and other similar quadkeyr
functions,
read the the vignette:
https://docs.ropensci.org/quadkeyr/articles/quadkey_to_sf_conversion.html
Value
A list returning pixel X and pixel Y coordinates.
References
https://learn.microsoft.com/en-us/bingmaps/articles/bing-maps-tile-system
Examples
latlong_to_pixelXY(
lat = -35,
lon = -50,
zoom = 6
)