Package org.opengis.referencing.cs

Interface SphericalCS

All Superinterfaces:

CoordinateSystem, IdentifiedObject

@UML(identifier="CS_SphericalCS",
     specification=ISO_19111)
public interface SphericalCS
extends CoordinateSystem

A 3-dimensional coordinate system with one distance measured from the origin and two angular coordinates. Not to be confused with an EllipsoidalCS based on an ellipsoid "degenerated" into a sphere.

This type of CS can be used by coordinate reference systems of type GeocentricCRS or EngineeringCRS. The following examples describe some possible set of axes for spherical CS used with the above-cited CRS:

Example 1: used with a Geocentric CRS

Axis name	Abbr.	Direction	Unit
Spherical latitude	Θ	AxisDirection.NORTH	degree
Spherical longitude	Ω	AxisDirection.EAST	degree
Geocentric radius	R	AxisDirection.UP	metre

Example 2: used with an Engineering CRS

Axis name	Abbr.	Direction	Unit
Distance	r	AxisDirection.valueOf("AWAY_FROM")	kilometre
Longitude	φ	AxisDirection.valueOf("COUNTER_CLOCKWISE")	degree
Elevation	Θ	AxisDirection.UP	degree

Note: The above example uses two axis directions that are not defined in ISO 19111, but found in ISO 19162 as "awayFrom" and "counterClockwise".

Since:

1.0

See Also:

CSAuthorityFactory.createSphericalCS(String), CSFactory.createSphericalCS(Map, CoordinateSystemAxis, CoordinateSystemAxis, CoordinateSystemAxis)

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