solarspatialtools.spatial.lla2flat
- solarspatialtools.spatial.lla2flat(lat, lon, latref, lonref, method='matlab')
Convert from latitude/longitude to East and North in meters based on a local coordinate system.
Parameters
- latnp.array
latitudes
- lonnp.array
longitudes
- latrefnumeric
reference latitude
- lonrefnumeric
reference longitude
- methodstr
- “matlab”: follow the algorithm specified by Matlab lla2flat
(neglecting altitude) [1][2].
- “tmerc”: use a transverse mercator with local longitude for the
projection equal to lonref
References
- [1] Matlab Documentation - lla2flat - Convert from geodetic to flat Earth.
- [2] Engee Documentation - LLA to Flat Earth.
https://engee.com/helpcenter/stable/en/aerospace-axes-transformations/lla-to-flat-earth.html