Proj UTM

This variation implements the same algorithms as the standard Transverse Mercator projection. However, the definition parameters are specifically tailored for the definition of zones of the Universal Transverse Mercator (UTM) system of coordinate systems.

Parameter Name

Description

PARM1

UTM zone number. Note that this must be an integer value be­tween 1 and 60, even though it is carried in a variable of the dou­ble type.

PARM2

The hemisphere of the zone. Use a positive one for northern hemisphere and a negative one for the southern hemisphere.

MAP_SCL

Used only when defining a coordinate system that is to produce measurements on a scaled paper map. This value is the scale of the map, e.g., 100,000. Normally, this value is set to 1.0.