It is not easy, because you have to bypass CORS problem. If you don't know project from what to what, projection wkid is dynamic generated in the runtime, then like I said previously, you must need ajax, need internet to read projection string from website on the fly, in the run time. proj4js ( need ajax, internet to read projection string from website, due to website does not allow jsonp, not allow cors, you have to setup your own proxy to bypass CORS problem, not easy for normal user )īut if you already known from what to what, then you can just copy past projection string, no internet needed, all projectin done in your browser.Use esri javascipt api module ( client side projection, fast, no need ajax, no need internet, projection done in your browser, extremely fast) Proj is limited to converting between geographic and projection coordinates within one datum, whereas the newer Transformer takes into account datum shifts, and is recommended for newer pyproj use.transform for older versions always return the same axis order of "x, y" or "longitude, latitude", whereas PROJ 6+ is the order as defined by EPSG, unless an option like always_xy=True is specified.There are a few considerations with the different versions of PROJ/pyproj: X2, y2 = ansform(inProj, outProj, x1, y1) Here are a few examples using new/old capabilities based on the question: Using pyproj >= 2.2.0 import pyproj When using pyproj, note the differences from various releases in how it is used to transform data. from osgeo import ogrĬoordTransform = osr.CoordinateTransformation(inSpatialRef, outSpatialRef) easting and northing to return decimal latitude and longitude. You can either specify another Spatial Reference System by entering the desired EPSG into the form under Spatial Reference or you can convert the returned coordinates with Python.įor instance you can use the GDAL Python bindings to convert this point from the projected coordinate system (EPSG 3857) to a geographic coordinate system (EPSG 4326). convert the GPS coordinates converter from decimal to degrees and vise versa. Par conséquent, décline toute responsabilité quant à la précision et l'usage fait des résultats obtenus.By default the site you linked to uses the Spatial Reference System EPSG 3857 (WGS84 Web Mercator). Il est fortement recommandé que l’utilisateur dispose préalablementĭe quelques points de contrôle dont les coordonnées sont connues dans les systèmes de coordonnées à utiliser pour les comparer avec les coordonnées obtenus par l’application.ĭ’ailleurs, cette remarque s’applique à tous les logiciels de conversion de coordonnées. Example of UTM coordinates (UTM): 31U 705083 5644673 (zone easting northing) Example of British grid coordinates (OGB-7): TG 51409 13177 or 651409 313177. L’utilisateur doit s’assurer que les résultats correspondent bien à ses attentes. Le choix du réseau géodésique, l’actualisation des paramètres des Datums, etc… Ainsi, avant d’adopter définitivement les résultats donnés par l’application,
Remarque importante concernant la précision et l’exactitude des résultats obtenusĭifférents facteurs limitent la précision des transformations notamment les spécificités pratiques de chaque pays ou territoire, la propagation des erreurs, To convert the angle unit of geographical coordinates Latitude-longitude (degree, minute seconds (dms), grad, radians), just use.For GPS coordinates, select the WGS84 system for example, to convert coordinates GPS in UTM Zone 10N coordinates, choose left WGS84 and UTM Zone 10N right. Before you can convert coordinates to lat/long you will need to know which UTM zone your coordinates fall in.
(Other datums and projections will be added following the request of the visitors).
X, Y, Z -> Long, Lat, h: Select left WGS84_XYZ (geocentric) and right: WGS84.Ī coordinate converter allows performing conversion between different geodetic systems and most used projections, for example, converting GPS coordinates (WGS84) to Lambert, UTM, Mercator, RGF93, NAD83, NAD27. Long, Lat, h -> X, Y, Z: Select WGS84 left and right: WGS84_XYZ (geocentric) under 'International' menu New !: Geocentric cartesian coordinates (X, Y, Z)įollowing a request from a visitor, I added the option to convert to and from Geocentric cartesian coordinates (X, Y, Z).
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