javax.media.j3d

Class PickCone

java.lang.Object

javax.media.j3d.PickShape

javax.media.j3d.PickCone

Direct Known Subclasses:

PickConeRay, PickConeSegment

public abstract class PickCone
extends PickShape

PickCone is the abstract base class of all cone pick shapes.

Since:

Java 3D 1.2

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Vector3d	direction
(package private) Point3d	origin
(package private) double	spreadAngle

Fields inherited from class javax.media.j3d.PickShape

PICKBOUNDINGBOX, PICKBOUNDINGPOLYTOPE, PICKBOUNDINGSPHERE, PICKCONE, PICKCYLINDER, PICKPOINT, PICKRAY, PICKSEGMENT, PICKUNKNOWN

Constructor Summary

Constructors

Constructor and Description
PickCone() Constructs an empty PickCone.

Method Summary

Methods

Modifier and Type	Method and Description
void	getDirection(Vector3d direction) Gets the direction of this PickCone.
void	getOrigin(Point3d origin) Gets the origin of this PickCone.
(package private) int	getPickType()
(package private) double	getRadius(double distance) Gets the radius of this PickCone at the specified distance.
double	getSpreadAngle() Gets the spread angle of this PickCone.
(package private) Point3d	getStartPoint()
(package private) abstract boolean	intersect(Bounds bounds, Point4d pickPos) Return true if shape intersect with bounds.

Methods inherited from class javax.media.j3d.PickShape

distance, transform

Methods inherited from class java.lang.Object

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

Field Detail

origin

Point3d origin

direction

Vector3d direction

spreadAngle

double spreadAngle

Constructor Detail

PickCone

public PickCone()

Constructs an empty PickCone. The origin and direction of the cone are initialized to (0,0,0). The spread angle is initialized to PI/64.

Method Detail

getOrigin

public void getOrigin(Point3d origin)

Gets the origin of this PickCone.

Parameters:

origin - the Point3d object into which the origin will be copied.

getDirection

public void getDirection(Vector3d direction)

Gets the direction of this PickCone.

Parameters:

direction - the Vector3d object into which the direction will be copied.

getSpreadAngle

public double getSpreadAngle()

Gets the spread angle of this PickCone.

Returns:

the spread angle.

getRadius

double getRadius(double distance)

Gets the radius of this PickCone at the specified distance.

Parameters:

distance - the distance from the origin at which we want the radius of the cone

Returns:

the radius at the specified distance

intersect

abstract boolean intersect(Bounds bounds,
                Point4d pickPos)

Return true if shape intersect with bounds. The point of intersection is stored in pickPos.

Specified by:

intersect in class PickShape

getStartPoint

Point3d getStartPoint()

Specified by:

getStartPoint in class PickShape

getPickType

int getPickType()

Specified by:

getPickType in class PickShape