fr.cnes.sirius.patrius.fieldsofview
Class CircularField

java.lang.Object
  fr.cnes.sirius.patrius.fieldsofview.CircularField

All Implemented Interfaces:

IFieldOfView

public final class CircularField
extends Object
implements IFieldOfView

This class describes a right circular field of view to be used in "instruments" part properties. It implements the IFieldOfView interface and so provides the associated services.

Since:

1.2

Version:

$Id: CircularField.java 6322 2012-09-20 15:51:39Z CardosoP $

Author:

Thomas Trapier

See Also:

IFieldOfView

Concurrency :

immutable

Constructor Summary

CircularField(String name, double angularAperture, Vector3D mainDirection)
Constructor for a circular field of view.

Method Summary

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

CircularField

public CircularField(String name,
                     double angularAperture,
                     Vector3D mainDirection)

Constructor for a circular field of view.

Parameters:

name - the name of the field

angularAperture - the angular aperture : must be strictly between 0 and PI

mainDirection - the direction defining the center of the field

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. For some of the fields (ComplexField), that value can be approximative : see particular javadoc of each class.

Specified by:

getAngularDistance in interface IFieldOfView

Parameters:

direction - the direction vector

Returns:

the angular distance

isInTheField

public boolean isInTheField(Vector3D direction)

Specified by:

isInTheField in interface IFieldOfView

Parameters:

direction - a direction vector

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