agi.foundation.geometry.shapes

(agi.foundation.core-2025r1.jar)

Class EllipsoidComplexSurfaceCurve

java.lang.Object

agi.foundation.geometry.shapes.EllipsoidSurfaceCurve

agi.foundation.geometry.shapes.EllipsoidComplexSurfaceCurve

All Implemented Interfaces:

IEquatable<EllipsoidSurfaceCurve>

public class EllipsoidComplexSurfaceCurve
extends EllipsoidSurfaceCurve

Represents a curve comprised of several connected curves on the surface of an ellipsoid

Method Summary

Modifier and Type	Method and Description
CartographicExtent	computeCartographicExtent() Computes the cartographic bounding box which completely contains all the constituent curves.
protected int	computeHashCode() Computes the hash code for this curve.
static EllipsoidComplexSurfaceCurve	createCurve(EllipsoidSurfaceCurve... curves) Constructs a complex curve based on a given set of constituent curves.
static EllipsoidComplexSurfaceCurve	createCurve(List<EllipsoidSurfaceCurve> curves) Constructs a complex curve based on a given set of constituent curves.
static EllipsoidComplexSurfaceCurve	createGeodesic(Ellipsoid shape, Iterable<Cartographic> nodes) Creates a complex curve made up of EllipsoidGeodesics which connect the given set of nodes on the surface of the ellipsoid shape.
static EllipsoidComplexSurfaceCurve	createRhumbLine(Ellipsoid shape, Iterable<Cartographic> nodes) Creates a complex curve made up of EllipsoidRhumbLines which connect the given set of nodes on the surface of the ellipsoid shape.
boolean	equalsType(EllipsoidSurfaceCurve other) Indicates whether the current object is equal to another object of the same type.
Cartographic	findClosestPointOnCurve(Cartographic point, double[] distance) Finds the closest point on the curve from the input point.
List<EllipsoidSurfaceCurve>	getCurves() Gets a read only list of the constituent curves which comprise the overall curve.
List<Cartographic>	getDiscretePoints(double granularity) Get a set of points which discretely represent the overall curve.
Ellipsoid	getEllipsoid() Gets the ellipsoid reference surface on which the curve lies.
Cartographic	getFinalPoint() Gets the final planetodetic point on the path.
Cartographic	getInitialPoint() Gets the initial planetodetic point on the path.
double	getSurfaceDistance() Gets the total distance along the curve to the location of the final point.
Cartographic	interpolateUsingFraction(double fraction) Provides the location of a point at the indicated portion along the curve.
Cartographic	interpolateUsingSurfaceDistance(double surfaceDistance) Provides the location of a point at the indicated distance along the curve.

Methods inherited from class agi.foundation.geometry.shapes.EllipsoidSurfaceCurve

computeIntersection, equals, findClosestPointOnCurve, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

createCurve

@Nonnull
public static EllipsoidComplexSurfaceCurve createCurve(@Nonnull
                                                                 EllipsoidSurfaceCurve... curves)

Constructs a complex curve based on a given set of constituent curves.

Parameters:

curves - The set of constituent curves.

Returns:

The constructed curve.

createCurve

@Nonnull
public static EllipsoidComplexSurfaceCurve createCurve(@Nonnull
                                                                 List<EllipsoidSurfaceCurve> curves)

Constructs a complex curve based on a given set of constituent curves.

Parameters:

curves - The set of constituent curves.

Returns:

The constructed curve.

createGeodesic

@Nonnull
public static EllipsoidComplexSurfaceCurve createGeodesic(@Nonnull
                                                                    Ellipsoid shape,
                                                                    @Nonnull
                                                                    Iterable<Cartographic> nodes)

Creates a complex curve made up of EllipsoidGeodesics which connect the given set of nodes on the surface of the ellipsoid shape.

Parameters:

shape - The ellipsoid reference surface.

nodes - The set of points forming the nodes of the complex curve.

Returns:

A complex curve connecting the given set of points.

Throws:

ArgumentOutOfRangeException - Thrown if the number of nodes is less than 2.

createRhumbLine

@Nonnull
public static EllipsoidComplexSurfaceCurve createRhumbLine(@Nonnull
                                                                     Ellipsoid shape,
                                                                     @Nonnull
                                                                     Iterable<Cartographic> nodes)

Creates a complex curve made up of EllipsoidRhumbLines which connect the given set of nodes on the surface of the ellipsoid shape.

Parameters:

shape - The ellipsoid reference surface.

nodes - The set of points forming the nodes of the complex curve.

Returns:

A complex curve connecting the given set of points.

Throws:

ArgumentOutOfRangeException - Thrown if the number of nodes is less than 2.

getInitialPoint

@Nonnull
public Cartographic getInitialPoint()

Gets the initial planetodetic point on the path.

Specified by:

getInitialPoint in class EllipsoidSurfaceCurve

getFinalPoint

@Nonnull
public Cartographic getFinalPoint()

Gets the final planetodetic point on the path.

Specified by:

getFinalPoint in class EllipsoidSurfaceCurve

getSurfaceDistance

public double getSurfaceDistance()

Gets the total distance along the curve to the location of the final point.

Specified by:

getSurfaceDistance in class EllipsoidSurfaceCurve

getCurves

@Nonnull
public final List<EllipsoidSurfaceCurve> getCurves()

Gets a read only list of the constituent curves which comprise the overall curve.

getEllipsoid

public Ellipsoid getEllipsoid()

Gets the ellipsoid reference surface on which the curve lies.

Specified by:

getEllipsoid in class EllipsoidSurfaceCurve

interpolateUsingFraction

@Nonnull
public Cartographic interpolateUsingFraction(double fraction)

Provides the location of a point at the indicated portion along the curve.

Specified by:

interpolateUsingFraction in class EllipsoidSurfaceCurve

Parameters:

fraction - The portion of the distance between the initial and final points.

Returns:

The planetodetic location of the point along the curve.

interpolateUsingSurfaceDistance

@Nonnull
public Cartographic interpolateUsingSurfaceDistance(double surfaceDistance)

Provides the location of a point at the indicated distance along the curve.

Specified by:

interpolateUsingSurfaceDistance in class EllipsoidSurfaceCurve

Parameters:

surfaceDistance - The distance from the initial point to the point of interest along the rhumb line.

Returns:

The planetodetic location of the point along the curve.

computeCartographicExtent

public CartographicExtent computeCartographicExtent()

Computes the cartographic bounding box which completely contains all the constituent curves.

Specified by:

computeCartographicExtent in class EllipsoidSurfaceCurve

Returns:

An object representing the bounding box.

findClosestPointOnCurve

@Nonnull
public Cartographic findClosestPointOnCurve(@Nonnull
                                                      Cartographic point,
                                                      @Nonnull
                                                      double[] distance)

Finds the closest point on the curve from the input point.

The default implementation is a golden section search on the curve. The built-in types (geodesic, rhumb, and complex) have their own precise algorithms.

Overrides:

findClosestPointOnCurve in class EllipsoidSurfaceCurve

Parameters:

point - The input point. The point will be on the ellipsoid surface at this location.

distance - The surface distance between the point and the point on the curve.

Returns:

The closest point on the curve.

getDiscretePoints

public List<Cartographic> getDiscretePoints(double granularity)

Get a set of points which discretely represent the overall curve.

Overrides:

getDiscretePoints in class EllipsoidSurfaceCurve

Parameters:

granularity - The maximum angular distance between the discrete points with respect to the center of the Ellipsoid (get). A small granularity will yield a more precise representation of the curve.

Returns:

A read only list of discrete planetodetic points which can approximate the overall curve as linear segments.

Throws:

ArgumentOutOfRangeException - The granularity must be positive and non-zero.

computeHashCode

protected int computeHashCode()

Computes the hash code for this curve.

Overrides:

computeHashCode in class EllipsoidSurfaceCurve

Returns:

The hash code.

equalsType

public boolean equalsType(EllipsoidSurfaceCurve other)

Description copied from interface: IEquatable

Indicates whether the current object is equal to another object of the same type.

Specified by:

equalsType in interface IEquatable<EllipsoidSurfaceCurve>

Overrides:

equalsType in class EllipsoidSurfaceCurve

Parameters:

other - An object to compare with this object.

Returns:

true if the current object is equal to the other parameter; otherwise, false.