To convert Lambert 93 coordinates to longitude and latitude with python, there is the package pyproj. Example of code with Lambert 93 coordinates(x1,y1) = ( 882408.3,6543019.6)
from pyproj import Proj, transform
inProj = Proj(init='epsg:2154')
outProj = Proj(init='epsg:4326')
x1,y1 = 882408.3,6543019.6
x2,y2 = transform(inProj,outProj,x1,y1)
print(x2,y2)
returns here the longitude and latitude:
5.355651287573366 45.96240165432614
Note: one can find the epsg references in the following site: spatialreference. For example 2154 for lambert 93 and 4326 for the World Geodetic System.
Note: pyproj package is available with the basemap module. Installation with anaconda distritubution:
conda install -c anaconda basemap
References
Links | Site |
---|---|
Projection_conique_conforme_de_Lambert | wikipedia |
Lambert93_ConiquesConformes.pdf | geodesie.ign.fr |
Conversion entre Sytèmes de Coordonnées GPS - données SIG - Scientifiques | geofree.fr |
Google Map | coordonnees-gps.fr |
Easily change coordinate projection systems in Python with pyproj | all-geo.org |
spatialreference lambert 93 | spatialreference.org |
spatialreference WGS | spatialreference.org |
Convert Lambert 93 to GPS Coordinates Latitude / Longitude (wgs84) Javascript | github |
Converting projected coordinates to lat/lon using Python? | stackexchange |
Package pyproj | github |
World Geodetic System | wikipedia |