com.luciad.reference

LuciadLightspeedInterface ILcdTopocentricReference

All Superinterfaces:

Cloneable, ILcdCloneable, ILcdGeoReference

All Known Implementing Classes:

TLcdTopocentricReference

public interface ILcdTopocentricReference
extends ILcdGeoReference

An ILcdTopocentricReference is an ILcdGeoReference that is defined by a geodetic datum and a lon-lat-height point that defines the origin of the topocentric coordinate system of this reference.

A topocentric coordinate system is a right-handed cartesian coordinate system with the following properties:

• Its origin is defined by a lon-lat-height point on the ellipsoid.
• The y-axis is directed northwards and aligned to intersect with the polar rotational axis of the ellipsoid.
• The x-axis if directed eastwards.
• The x-y plane is tangential to the ellipsoid at the origin.
• The z-axis is perpendicular to the ellipsoid at the origin, and points outwards. In other words, the z-axis is perpendicular to the x-y plane.

This reference is also referred as an ENU (East-North-Up) projection.

Field Summary

Fields inherited from interface com.luciad.reference.ILcdGeoReference

CARTESIAN, GEODETIC

Method Summary

Modifier and Type	Method and Description
ILcdPoint	getOrigin() Returns the 3D origin of this ILcdTopocentricReference.

Methods inherited from interface com.luciad.reference.ILcdGeoReference

getCoordinateType, getGeodeticDatum

Methods inherited from interface com.luciad.util.ILcdCloneable

clone

Method Detail

getOrigin

ILcdPoint getOrigin()

Returns the 3D origin of this ILcdTopocentricReference.

Returns:

the 3D origin of this ILcdTopocentricReference.