Package org.orekit.bodies
Class Loxodrome
- java.lang.Object
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- org.orekit.bodies.Loxodrome
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- Direct Known Subclasses:
LoxodromeArc
public class Loxodrome extends Object
Perform calculations on a loxodrome (commonly, a rhumb line) on an ellipsoid.A loxodrome or rhumb line is an arc on an ellipsoid's surface that intersects every meridian at the same angle.
- Since:
- 11.3
- Author:
- Joe Reed
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Constructor Summary
Constructors Constructor Description Loxodrome(GeodeticPoint point, double azimuth, OneAxisEllipsoid body)
Constructor building a loxodrome from an initial point and an azimuth-off-local-north heading.Loxodrome(GeodeticPoint point, double azimuth, OneAxisEllipsoid body, double altitude)
Constructor building a loxodrome from an initial point and an azimuth-off-local-north heading.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getAltitude()
Get the altitude above the reference body.double
getAzimuth()
Get the azimuth.OneAxisEllipsoid
getBody()
Get the body on which the loxodrome is defined.GeodeticPoint
getPoint()
Get the geodetic point defining the loxodrome.GeodeticPoint
pointAtDistance(double distance)
Calculate the point at the specified distance from the origin point along the loxodrome.
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Constructor Detail
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Loxodrome
public Loxodrome(GeodeticPoint point, double azimuth, OneAxisEllipsoid body)
Constructor building a loxodrome from an initial point and an azimuth-off-local-north heading. This method is an equivalent tonew Loxodrome(point, azimuth, body, point.getAltitude())
- Parameters:
point
- the initial loxodrome pointazimuth
- the heading, clockwise angle from north (radians,[0,2pi]
)body
- ellipsoid body on which the loxodrome is defined
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Loxodrome
public Loxodrome(GeodeticPoint point, double azimuth, OneAxisEllipsoid body, double altitude)
Constructor building a loxodrome from an initial point and an azimuth-off-local-north heading.- Parameters:
point
- the initial loxodrome pointazimuth
- the heading, clockwise angle from north (radians,[0,2pi]
)body
- ellipsoid body on which the loxodrome is definedaltitude
- altitude above the reference body
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Method Detail
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getPoint
public GeodeticPoint getPoint()
Get the geodetic point defining the loxodrome.- Returns:
- the geodetic point defining the loxodrome
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getAzimuth
public double getAzimuth()
Get the azimuth.- Returns:
- the azimuth
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getBody
public OneAxisEllipsoid getBody()
Get the body on which the loxodrome is defined.- Returns:
- the body on which the loxodrome is defined
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getAltitude
public double getAltitude()
Get the altitude above the reference body.- Returns:
- the altitude above the reference body
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pointAtDistance
public GeodeticPoint pointAtDistance(double distance)
Calculate the point at the specified distance from the origin point along the loxodrome. A positive distance follows the line in the azumuth direction (i.e. northward for arcs with azimuth angles[3pi/2, 2pi]
or[0, pi/2]
). Negative distances travel in the opposite direction along the rhumb line. Distance is computed at the altitude of the origin point.- Parameters:
distance
- the distance to travel (meters)- Returns:
- the point at the specified distance from the origin
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