EN ISO 19137:2008

Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Terms, definitions, symbols and abbreviated terms
5 Geometry packages
  5.1 Class diagram
  5.2 Omitted constructs
  5.3 Classes retained without additional constraints
  5.4 Concrete classes made abstract
  5.5 Associations
  5.6 GM_Position
  5.7 GM_CurveSegment
  5.8 GM_CurveInterpolation
  5.9 GM_SurfaceInterpolation
  5.10 GM_SurfacePatch
  5.11 GM_Polygon
  5.12 GM_CompositeCurve
6 Topology packages
Annex A (informative) Supported specifications
Annex B (normative) Abstract test suite
Annex C (informative) Extending the core
Annex D (informative) Examples
Bibliography

ISO 19137:2007 defines a core profile of the spatial schema specified in ISO 19107 that specifies, in accordance with ISO 19106, a minimal set of geometric elements necessary for the efficient creation of application schemata.It supports many of the spatial data formats and description languages already developed and in broad use within several nations or liaison organizations.