IQ v15.4 and higher and SQL Anywhere v12 and higher can store spatial data (data that
describes the position, shape, and orientation of objects in a
defined space) using spatial reference systems.
IQ v15.4 and higher and SQL Anywhere v12 and higher support spatial reference systems,
which define the space in which geometries are described. PowerDesigner models spatial
reference systems as extended objects with a stereotype of
<<SpatialReferenceSystem>>.
IQ v15.4 and higher and SQL Anywhere v12 and higher support spatial units of measure,
which define the units in which geographic coordinates are measured, and how these units are
converted to radians or meters. PowerDesigner models spatial units of measure as extended
objects with a stereotype of <<SpatialUnitOf
Measure>>.