Luciad.Geodesy Namespace Reference

Coordinate references and geodesy calculations. More...

Classes
class	CoordinateReference
	Represents a coordinate reference. More...
class	CoordinateReferenceProvider
	Factory to create coordinate references from EPSG and OGC identifiers. More...
class	GeodesyCalculations
	Provides geodesy calculations. More...
class	LineIntersection
	The result of a line intersection. More...
class	Transformation
	Provides transformations between a source and a target coordinate reference. More...

Enumerations
enum	CoordinateReferenceType { Geodetic , Grid , Geocentric , Topocentric }
	An enumeration of coordinate reference types. More...
enum	LineInterpolationType { Geodesic , Rhumb , Linear }
	Line type: geodesics vs rhumbs vs linear. More...

Detailed Description

Coordinate references and geodesy calculations.

Provides support for coordinate references and transformations and for geodesy calculations.

Enumeration Type Documentation

CoordinateReferenceType

enum Luciad.Geodesy.CoordinateReferenceType

An enumeration of coordinate reference types.

Since

2025.0

Enumerator
Geodetic	A geodetic reference system is a reference based on a geodetic datum. Coordinates in these references correspond with longitude, latitude and height values. Longitude and latitude values are expressed in degrees, height values in meters.
Grid	A grid reference (or projected reference) is a cartesian reference that contains the relation between its (x, y, z) coordinates and the corresponding geodetic (longitude, latitude, height) coordinates. (x, y) is a regional Easting-Northing pair while z is equal to the original height. The Easting coordinate (x) is positive for East and negative for West. The Northing coordinate (y) is positive for North and negative for South.
Geocentric	A geocentric reference is a cartesian reference based on a geodetic datum. Coordinates are expressed in (x,y,z) with regard to the center of the ellipsoid on which the geodetic datum is based.
Topocentric	A topocentric reference is a cartesian reference that is defined by a geodetic datum and a lon-lat-height point that defines the origin of the 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 to as an ENU (East-North-Up) projection.

LineInterpolationType

enum Luciad.Geodesy.LineInterpolationType

Line type: geodesics vs rhumbs vs linear.

Enumerator
Geodesic	Geodesic interpolation between points.
Rhumb	Rhumbline interpolation between points.
Linear	Linear interpolation between points.