geodesy

Coordinate references and geodesy calculations. More...

Classes
class	luciad::CoordinateReference
	Represents a coordinate reference. More...
class	luciad::CoordinateReferenceProvider
	Factory to create coordinate references from EPSG, WKT and OGC identifiers, and to access the most commonly used references without error handling. More...
class	luciad::GeodesyCalculations
	Provides geodesy calculations. More...
class	luciad::GeoLocation
	A GeoLocation represents a location and orientation on the globe. More...
class	luciad::LineIntersection
	The result of a line intersection. More...
class	luciad::Transformation
	Provides transformations between a source and a target coordinate reference. More...

Enumerations
enum class	luciad::CoordinateReferenceType {   luciad::CoordinateReferenceType::Geodetic , luciad::CoordinateReferenceType::Grid , luciad::CoordinateReferenceType::Geocentric , luciad::CoordinateReferenceType::Topocentric ,   luciad::CoordinateReferenceType::Cartesian }
	An enumeration of coordinate reference types. More...
enum class	luciad::LineInterpolationType { luciad::LineInterpolationType::Geodesic , luciad::LineInterpolationType::Rhumb , luciad::LineInterpolationType::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 class luciad::CoordinateReferenceType

strong

An enumeration of coordinate reference types.

luciad/geodesy/CoordinateReference.h

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.
Cartesian	A Cartesian reference is a self-contained coordinate system that represents positions directly as XY(Z) coordinates. These coordinates are only relative to that reference frame: they do not inherently correspond to a location on Earth. Since 2026.1

LineInterpolationType

enum class luciad::LineInterpolationType

strong

Line type: geodesics vs rhumbs vs linear.

luciad/geodesy/LineInterpolationType.h

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