libb.merc_y

merc_y(lat, r_major=6378137.0, r_minor=6356752.3142)[source]

Project latitude into mercator / radians from major/minor axes.

Parameters:

  • lat (float) – Latitude in degrees.

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

  • r_minor (float) – Minor axis radius in meters (default: Earth WGS84).

Returns:

Mercator y coordinate.

Return type:

float

Example:

>>> "{:0.3f}".format(merc_y(73.9857))
'12468646.871'