MTB Spatial References Module

This module is one of a suite of modules which provide handling of different spatial reference notation systems, in this case the German Meßtischblatt system. It is only required on warehouses which support German MTB Grid references for data entry or reporting.

It performs the following tasks:

• Declares the underlying projection’s SRID to be 4745, which is the numeric code given to the RD/83 projection.
• Provides a method for checking the format of a provided spatial reference.
• Provides conversions for MTB Grid references to and from a polygon in the underlying projection.