fr.cnes.sirius.patrius.fieldsofview

Class InvertField

java.lang.Object

fr.cnes.sirius.patrius.fieldsofview.InvertField

All Implemented Interfaces:

IFieldOfView, Serializable

public final class InvertField
extends Object
implements IFieldOfView

This field of view contains an existing field and inverts it.

Since:

1.2

Version:

$Id$

Author:

Thomas Trapier

See Also:

IFieldOfView, Serialized Form

Concurrency :

conditionally thread-safe

Concurrency comment :

the used field must be thread-safe itself. All available fields are immutable.

Constructor Summary

Constructors

Constructor and Description
InvertField(String name, IFieldOfView invertedField) Constructor of the invert field of a given one.

Method Summary

Modifier and Type	Method and Description
double	getAngularDistance(Vector3D direction) Computes the angular distance between a vector and the border of the field.
String	getName()
boolean	isInTheField(Vector3D direction)

Methods inherited from class java.lang.Object

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

Constructor Detail

InvertField

public InvertField(String name,
                   IFieldOfView invertedField)

Constructor of the invert field of a given one.

Parameters:

name - the name of the new field

invertedField - the field to be inverted

Method Detail

getAngularDistance

public double getAngularDistance(Vector3D direction)

Computes the angular distance between a vector and the border of the field. The result is positive if the direction is in the field, negative otherwise. This "invert" field simply invert the value given by the origin field.

Specified by:

getAngularDistance in interface IFieldOfView

Parameters:

direction - the direction vector (expressed in the tropocentric coordinate system of the object)

Returns:

the angular distance

isInTheField

public boolean isInTheField(Vector3D direction)

Specified by:

isInTheField in interface IFieldOfView

Parameters:

direction - a direction vector (expressed in the topocentric coordinate system of the object)

Returns:

true if the direction is in the field

getName

public String getName()

Specified by:

getName in interface IFieldOfView

Returns:

the name of the field