Transformation function: zone

Coordinate system change between KKJ, TM, SWEREF and RT90 zones.

Function makes automatically required ellipsoid transformations between KKJ and TM coordinate systems. Additinally, lists contain special WGS84 'zone', which means WGS84 latitude and longitude in degrees.

By default lists show all available coordinate systems. Unneeded national systems can be removed in program startup settings.

Transformations between finnish KKJ- and TM-zones are done by accurate triangle specific affine transformation (JHS 197, http://www.jhs-suositukset.fi/web/guest/jhs/recommendations/197). Transformation between swedish RT90- and TM-zones are made using transformation parameters provided by Lantmäteriet (http://www.lantmateriet.se/Kartor-och-geografisk-information/GPS-och-geodetisk-matning/Om-geodesi/Transformationer/RT-90---SWEREF-99/).

Name

Function name.

From, To

Original and zestination zones.

Swap

Swap transformation direction.

Definitions

Definitions common for all functions.

Coordinate systems

Known coordinate systems and EPSG codes: