# Interface UserDefinedCS

All Superinterfaces:
  `CoordinateSystem, IdentifiedObject`

@UML(identifier="CS_UserDefinedCS", specification=ISO_19111) public interface UserDefinedCS extends CoordinateSystem
A two- or three-dimensional coordinate system that consists of any combination of coordinate axes not covered by any other Coordinate System type. An example is a multilinear coordinate system which contains one coordinate axis that may have any 1-D shape which has no intersections with itself. This non-straight axis is supplemented by one or two straight axes to complete a 2 or 3 dimensional coordinate system. The non-straight axis is typically incrementally straight or curved. A `UserDefinedCS` shall have two or three axis associations.

Since:
  1.0

- ## Field Summary

  ### Fields inherited from interface IdentifiedObject

  `ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY`

- ## Method Summary

  ### Methods inherited from interface CoordinateSystem

  `getAxis, getDimension`

  ### Methods inherited from interface IdentifiedObject

  `getAlias, getIdentifiers, getName, getRemarks, toWKT`