coordinate system - EPSG 3857 or 4326 for Web Mapping - Geographic . . . EPSG:3857 is a Spherical Mercator projection coordinate system popularized by web services such as Google and later OpenStreetMap Leaflet's help states: EPSG3857 The most common CRS for online maps, used by almost all free and commercial tile providers
coordinate system - How can EPSG:3857 be in meters? - Geographic . . . In my application, I need to convert EPSG:3857 coordinates into WGS84 (lat, long) in order to measure distances between coordinates using haversine formula Instead, if EPSG:3857 would be in meters as such, the calculation would just be with Pythagorian sqrt(dx^2 + dy^2)
What is the difference between EPSG:900913 and EPSG:3857? I have always used EPSG code 3857 for the web mercator, which is backed up by the always useful spatialreference org Incidentally, I could not find 900913 on spatialreference org, but when I searched for it, one of the results it did come up with was 3857
Getting accurate distance measurements using EPSG:3857 in QGIS Problem of projections and accuracy of measurements: Since EPSG:3857 (and every Mercator projection) heavily distorts lengths (the more so the closer you get to the poles), measurements in this CRS don't make any sense, as @Vince already stated
Getting lat lng from wkid, latestwkid and x y coordinates There nothing I can change, so I assume all data in "latestWkid": 3857 whatever it means I briefly looked documentation for Proj4, and well it's very dark forest for me,I mean there are some information for "unit conversions" but no examples whatsoever –
Convert tile grid values from EPSG:3857 to EPSG:27700 I want to access this using a codebase that is hardcoded to EPSG:3857 tilesets Ideally without a complete rewrite I am pretty sure this is not possible as they use different tile matrix sets Is there a way to transform the 3857 call into one that will work with the Ordnance Survey data set and warp the tiles on return?
coordinate system - Spherical Mercator - World bounds - Geographic . . . OpenLayer sets this bound for you by default when you work with a data source that is in EPSG 3857 If you regularly perform (sizeable) map caching or map tile generation - knowing where the bounds are lets you have fine control over the tools you use, and thus planning, monitoring, concurrent parallel generations, and etc