libb.merc_x

merc_x(lon, r_major=6378137.0)

Project longitude into mercator / radians from major axis.

Parameters:

• lon (float) – Longitude in degrees.

• r_major (float) – Major axis radius in meters (default: Earth WGS84).

Returns:

Mercator x coordinate.

Return type:

float

Example:

>>> "{:0.3f}".format(merc_x(40.7484))
'4536091.139'