fr.cnes.sirius.patrius.assembly.properties.features

Class Facet

java.lang.Object

fr.cnes.sirius.patrius.assembly.properties.features.Facet

All Implemented Interfaces:

CrossSectionProvider, Serializable

public final class Facet
extends Object
implements CrossSectionProvider, Serializable

This class is a cross section provider.

Note that the use of this class implies a constant area which may not be suited for some application such as reentry.

Since:

1.1

Version:

$Id$

Author:

Thomas Trapier

See Also:

CrossSectionProvider, Serialized Form

Concurrency :

immutable

Constructor Summary

Constructors

Constructor and Description
Facet(Vector3D inNormal, double inArea) Simple constructor.

Method Summary

Modifier and Type	Method and Description
double	getArea()
double	getCrossSection(Vector3D direction) Computes the cross section from the direction defined by a Vector3D.
Vector3D	getNormal()

Methods inherited from class java.lang.Object

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

Constructor Detail

Facet

public Facet(Vector3D inNormal,
             double inArea)

Simple constructor.

Parameters:

inNormal - vector normal to the facet. Facet should be oriented such that facet normal vector is outside the spacecraft.

inArea - facet area

Method Detail

getNormal

public Vector3D getNormal()

Returns:

unit normal vector

getArea

public double getArea()

Returns:

facet area

getCrossSection

public double getCrossSection(Vector3D direction)

Computes the cross section from the direction defined by a Vector3D.

Specified by:

getCrossSection in interface CrossSectionProvider

Parameters:

direction - the direction vector

Returns:

the cross section