Functions which operate on Geometirc Values.

Information

If passed a string the geometry functions will automatically convert the value into a Geometry object. Where the final result of an expression is a geometry object then this will automatically be converted into a String once evaluation is complete.

To convert a Geometry object into a Well Known Text* string, so that it can be passed to other attribute functions, toString() must be called.

Well-known text (WKT) is a text markup language for representing vector geometry objects

Functions

The following function perform geometric operations: