= Index CRSs 

This page describes how to use and interpret Index Coordinate Reference Systems (CRSs), and how they differs from other linear coordinate systems and especially how it differs from the ''internal'' grid CRS, known as `CRS:1`.

GML definitions for [http://kahlua.eecs.jacobs-university.de:8080/def/crs/OGC/0/Index1D Index1D], [http://kahlua.eecs.jacobs-university.de:8080/def/crs/OGC/0/Index2D Index2D] and [http://kahlua.eecs.jacobs-university.de:8080/def/crs/OGC/0/Index3D Index3D] are already embedded in our [SecoreDevGuide SECORE] resolver and their official acknowledgment is on OGC table.

== Definition

TBD

[[Image(IndexVsCartesianCRS.png, center, 90%)]]