agi.foundation.geometry.discrete

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

Class ExtrudedPolylineTriangulator

java.lang.Object

agi.foundation.geometry.discrete.ExtrudedPolylineTriangulator

public final class ExtrudedPolylineTriangulator
extends Object

Triangulates a polyline into an extrusion with bottom and top boundaries.

See Also:

Triangle Mesh Primitive topic, ExtrudedPolylineTriangulatorResult, TriangleMeshPrimitive, SurfaceMeshPrimitive, PolylinePrimitive

Method Summary

Modifier and Type	Method and Description
static ExtrudedPolylineTriangulatorResult	compute(CentralBody centralBody, Iterable<Cartesian> positions, double bottomAltitude, double topAltitude) Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude.
static ExtrudedPolylineTriangulatorResult	compute(CentralBody centralBody, Iterable<Cartesian> positions, double bottomAltitude, double topAltitude, WindingOrder positionsWindingOrder) Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude.
static ExtrudedPolylineTriangulatorResult	compute(CentralBody centralBody, Iterable<Cartesian> bottomPositions, Iterable<Cartesian> topPositions) Computes an extrusion between bottomPositions and topPositions on the specified centralBody.
static ExtrudedPolylineTriangulatorResult	compute(CentralBody centralBody, Iterable<Cartesian> bottomPositions, Iterable<Cartesian> topPositions, WindingOrder positionsWindingOrder) Computes an extrusion between bottomPositions and topPositions on the specified centralBody.
static ExtrudedPolylineTriangulatorResult	computeCartographic(CentralBody centralBody, Iterable<Cartographic> positions, double bottomAltitude, double topAltitude) For convenience.
static ExtrudedPolylineTriangulatorResult	computeCartographic(CentralBody centralBody, Iterable<Cartographic> positions, double bottomAltitude, double topAltitude, WindingOrder positionsWindingOrder) For convenience.
static ExtrudedPolylineTriangulatorResult	computeCartographic(CentralBody centralBody, Iterable<Cartographic> bottomPositions, Iterable<Cartographic> topPositions) For convenience.
static ExtrudedPolylineTriangulatorResult	computeCartographic(CentralBody centralBody, Iterable<Cartographic> bottomPositions, Iterable<Cartographic> topPositions, WindingOrder positionsWindingOrder) For convenience.
static ExtrudedPolylineTriangulatorResult	computeSingleConstantAltitude(CentralBody centralBody, Iterable<Cartesian> positions, double altitude) Computes an extrusion of positions on the specified centralBody.
static ExtrudedPolylineTriangulatorResult	computeSingleConstantAltitude(CentralBody centralBody, Iterable<Cartesian> positions, double altitude, WindingOrder positionsWindingOrder) Computes an extrusion of positions on the specified centralBody.
static ExtrudedPolylineTriangulatorResult	computeSingleConstantAltitudeCartographic(CentralBody centralBody, Iterable<Cartographic> positions, double altitude) For convenience.
static ExtrudedPolylineTriangulatorResult	computeSingleConstantAltitudeCartographic(CentralBody centralBody, Iterable<Cartographic> positions, double altitude, WindingOrder positionsWindingOrder) For convenience.

Methods inherited from class java.lang.Object

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

Method Detail

compute

public static final ExtrudedPolylineTriangulatorResult compute(CentralBody centralBody,
                                                               Iterable<Cartesian> bottomPositions,
                                                               Iterable<Cartesian> topPositions)

Computes an extrusion between bottomPositions and topPositions on the specified centralBody. This is equivalent to calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder) with a positionsWindingOrder of Compute.

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

bottomPositions - The bottom positions, in the centralBody's fixed reference frame.

topPositions - The top positions, in the centralBody's fixed reference frame.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder)

compute

public static final ExtrudedPolylineTriangulatorResult compute(CentralBody centralBody,
                                                               Iterable<Cartesian> bottomPositions,
                                                               Iterable<Cartesian> topPositions,
                                                               WindingOrder positionsWindingOrder)

Computes an extrusion between bottomPositions and topPositions on the specified centralBody.

The extrusion does not need to be attached to the ellipsoid, hence the altitudes for bottomPositions are not required to be 0.

positionsWindingOrder is used to compute normals for the resulting mesh. If this is unknown, use ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double).

Parameters:

centralBody - The central body to compute the extrusion on.

bottomPositions - The bottom positions, in the centralBody's fixed reference frame.

topPositions - The top positions, in the centralBody's fixed reference frame.

positionsWindingOrder - The winding order of bottomPositions and topPositions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

Throws:

ArgumentNullException - centralBody, bottomPositions, or topPositions is null.

ArgumentException - bottomPositions and topPositions must contain the same number of positions, and at least two each.

ArgumentException - bottomPositions and topPositions must have the same winding order.

UnsupportedCaseException - positionsWindingOrder must be a valid enumeration value in WindingOrder.

See Also:

Triangle Mesh Primitive topic

computeCartographic

public static final ExtrudedPolylineTriangulatorResult computeCartographic(CentralBody centralBody,
                                                                           Iterable<Cartographic> bottomPositions,
                                                                           Iterable<Cartographic> topPositions)

For convenience. Computes an extrusion between bottomPositions and topPositions on the specified centralBody using Cartographic positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in bottomPositions and topPositions to Cartesian and calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable)

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

bottomPositions - The bottom positions.

topPositions - The top positions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable)

computeCartographic

public static final ExtrudedPolylineTriangulatorResult computeCartographic(CentralBody centralBody,
                                                                           Iterable<Cartographic> bottomPositions,
                                                                           Iterable<Cartographic> topPositions,
                                                                           WindingOrder positionsWindingOrder)

For convenience. Computes an extrusion between bottomPositions and topPositions on the specified centralBody using Cartographic positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in bottomPositions and topPositions to Cartesian and calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder)

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

bottomPositions - The bottom positions.

topPositions - The top positions.

positionsWindingOrder - The winding order of bottomPositions and topPositions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,java.lang.Iterable,agi.foundation.geometry.discrete.WindingOrder)

compute

public static final ExtrudedPolylineTriangulatorResult compute(CentralBody centralBody,
                                                               Iterable<Cartesian> positions,
                                                               double bottomAltitude,
                                                               double topAltitude)

Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude. This is equivalent to calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder) with a positionsWindingOrder of Compute.

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions, in the centralBody's fixed reference frame, that should be extruded.

bottomAltitude - The extrusion's bottom altitude, in meters, above the ellipsoid.

topAltitude - The extrusion's top altitude, in meters, above the ellipsoid.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder)

compute

public static final ExtrudedPolylineTriangulatorResult compute(CentralBody centralBody,
                                                               Iterable<Cartesian> positions,
                                                               double bottomAltitude,
                                                               double topAltitude,
                                                               WindingOrder positionsWindingOrder)

Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude.

An extrusion along positions on the specified centralBody is computed with a constant bottomAltitude and topAltitude above the ellipsoid. Each position in positions is extruded along its detic surface normal.

The extrusion does not need to be attached to the ellipsoid, hence bottomAltitude is not required to be 0.

positionsWindingOrder is used to compute normals for the resulting mesh. If this is unknown, use ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double).

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions, in the centralBody's fixed reference frame, that should be extruded.

bottomAltitude - The extrusion's bottom altitude, in meters, above the ellipsoid.

topAltitude - The extrusion's top altitude, in meters, above the ellipsoid.

positionsWindingOrder - The winding order of positions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

Throws:

ArgumentNullException - centralBody or positions is null.

ArgumentException - positions must contain at least two elements.

ArgumentException - bottomAltitude must be less than or equal to topAltitude.

UnsupportedCaseException - positionsWindingOrder must be a valid enumeration value in WindingOrder.

See Also:

Triangle Mesh Primitive topic

computeCartographic

public static final ExtrudedPolylineTriangulatorResult computeCartographic(CentralBody centralBody,
                                                                           Iterable<Cartographic> positions,
                                                                           double bottomAltitude,
                                                                           double topAltitude)

For convenience. Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude using Cartographic positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in positions to Cartesian and calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double)

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions that should be extruded.

bottomAltitude - The extrusion's bottom altitude, in meters, above the ellipsoid.

topAltitude - The extrusion's top altitude, in meters, above the ellipsoid.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder)

computeCartographic

public static final ExtrudedPolylineTriangulatorResult computeCartographic(CentralBody centralBody,
                                                                           Iterable<Cartographic> positions,
                                                                           double bottomAltitude,
                                                                           double topAltitude,
                                                                           WindingOrder positionsWindingOrder)

For convenience. Computes an extrusion of positions on the specified centralBody with a constant bottomAltitude and topAltitude using Cartographic positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in positions to Cartesian and calling ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder)

See ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions that should be extruded.

bottomAltitude - The extrusion's bottom altitude, in meters, above the ellipsoid.

topAltitude - The extrusion's top altitude, in meters, above the ellipsoid.

positionsWindingOrder - The winding order of positions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.compute(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,double,agi.foundation.geometry.discrete.WindingOrder)

computeSingleConstantAltitude

public static final ExtrudedPolylineTriangulatorResult computeSingleConstantAltitude(CentralBody centralBody,
                                                                                     Iterable<Cartesian> positions,
                                                                                     double altitude)

Computes an extrusion of positions on the specified centralBody. One side of the extrusion has a constant altitude and the other has the original altitudes from positions. This is equivalent to calling ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder) with a positionsWindingOrder of Compute.

See ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions, in the centralBody's fixed reference frame, that should be extruded.

altitude - The extrusion's constant altitude, in meters, above the ellipsoid.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder)

computeSingleConstantAltitude

public static final ExtrudedPolylineTriangulatorResult computeSingleConstantAltitude(CentralBody centralBody,
                                                                                     Iterable<Cartesian> positions,
                                                                                     double altitude,
                                                                                     WindingOrder positionsWindingOrder)

Computes an extrusion of positions on the specified centralBody. One side of the extrusion has a constant altitude and the other has the original altitudes from positions.

An extrusion along positions on the specified centralBody is computed with a constant altitude on one side and the original position's altitude on the other. Each position in positions is extruded along its detic surface normal.

For example, if positions represents a polyline with varying altitudes and altitude is 0, the polyline is extruded down to the ellipsoid.

positionsWindingOrder is used to compute normals for the resulting mesh. If this is unknown, use ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double).

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions, in the centralBody's fixed reference frame, that should be extruded.

altitude - The extrusion's constant altitude, in meters, above the ellipsoid.

positionsWindingOrder - The winding order of positions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

Throws:

ArgumentNullException - centralBody or positions is null.

ArgumentException - positions must contain at least two elements.

UnsupportedCaseException - positionsWindingOrder must be a valid enumeration value in WindingOrder.

See Also:

Triangle Mesh Primitive topic

computeSingleConstantAltitudeCartographic

public static final ExtrudedPolylineTriangulatorResult computeSingleConstantAltitudeCartographic(CentralBody centralBody,
                                                                                                 Iterable<Cartographic> positions,
                                                                                                 double altitude)

For convenience. Computes an extrusion of positions on the specified centralBody using Cartographic positions. One side of the extrusion has a constant altitude and the other has the original altitudes from positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in positions to Cartesian and calling ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double)

See ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions that should be extruded.

altitude - The extrusion's constant altitude, in meters, above the ellipsoid.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder)

computeSingleConstantAltitudeCartographic

public static final ExtrudedPolylineTriangulatorResult computeSingleConstantAltitudeCartographic(CentralBody centralBody,
                                                                                                 Iterable<Cartographic> positions,
                                                                                                 double altitude,
                                                                                                 WindingOrder positionsWindingOrder)

For convenience. Computes an extrusion of positions on the specified centralBody using Cartographic positions. One side of the extrusion has a constant altitude and the other has the original altitudes from positions. Longitude and latitude are in radians, and altitude is in meters. This is equivalent to converting each position in positions to Cartesian and calling ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double)

See ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder) for a full discussion.

Parameters:

centralBody - The central body to compute the extrusion on.

positions - The polyline positions that should be extruded.

altitude - The extrusion's constant altitude, in meters, above the ellipsoid.

positionsWindingOrder - The winding order of positions.

Returns:

A ExtrudedPolylineTriangulatorResult object representing the extrusion, in the centralBody's fixed reference frame.

See Also:

ExtrudedPolylineTriangulator.computeSingleConstantAltitude(agi.foundation.celestial.CentralBody,java.lang.Iterable,double,agi.foundation.geometry.discrete.WindingOrder)