pe_primem_longitude

Retrieves the longitude value of a prime meridian object.

Usage syntax

double pe_primem_longitude (PE_PRIMEM primem);

Parameters
primem Prime meridian object
Description

Retrieves the longitude value in decimal degrees with respect to Greenwich upon which the prime meridian is based.

Returns

On success, the longitude value of the specified prime meridian object. On failure, zero.

Examples

double pm_lon = pe_primem_longitude(pm1);