Module org.opengis.geoapi

Package org.opengis.referencing.cs

Interface PolarCS

All Superinterfaces:

CoordinateSystem, IdentifiedObject

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

A 2-dimensional polar coordinate system. Position is specified by the distance from the origin and the angle between the line from the origin to a point and a reference direction.

This type of CS can be used by coordinate reference systems of type EngineeringCRS, potentially in combination with DerivedCRS. The following examples describe some possible set of axes for polar CS used with the above-cited CRS:

Example: used with an Engineering CRS

Axis name	Abbr.	Direction	Unit
Distance	r	AxisDirection.AWAY_FROM	metre
Bearing	Θ	AxisDirection.CLOCKWISE	degree

Since:

1.0

See Also:

• CylindricalCS
• CSAuthorityFactory.createPolarCS(String)
• CSFactory.createPolarCS(Map, CoordinateSystemAxis, CoordinateSystemAxis)

Field Summary

Fields inherited from interface org.opengis.referencing.IdentifiedObject

ALIAS_KEY, DOMAINS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY

Method Summary

Modifier and Type	Method	Description
default int	getDimension()	Returns the number of dimensions, which is 2 for this type of coordinate system.

Methods inherited from interface org.opengis.referencing.cs.CoordinateSystem

getAxis

Methods inherited from interface org.opengis.referencing.IdentifiedObject

getAlias, getDomains, getIdentifiers, getName, getRemarks, toWKT

Method Details

getDimension

default int getDimension()

Returns the number of dimensions, which is 2 for this type of coordinate system.

Specified by:

getDimension in interface CoordinateSystem

Returns:

always 2.