IMW

The IMW Polyconic projection is a modified Polyconic projection devised as a basis for the 1:1,000,000-scale International Map of the World (IMW) series. The IMW Polyconic projection differs from the ordinary Polyconic in two principle ways. All meridians are straight and two meridians are made true to scale.   The "IMW Polyconic" projection has the following parameters:

• Northing at false origin

• Easting at false origin

• True scale longitude

• Latitude of false origin

• Latitude of 1st Parallel

• Latitude of 2nd Parallel