physics3d
Class PlaneCircle

java.lang.Object
  physics3d.PlaneCircle

All Implemented Interfaces:

PhysicsShape

public class PlaneCircle
extends Object
implements PhysicsShape

PlaneCircle represents a plane circle in 3 space

Specification Fields

• centerPoint : Vect3 // center of circle
• normal : Vect3 // a unit vector perpendicular to the circle
• radius : double // radius of circle
• texture : String // texture of this object

Constructor Summary

PlaneCircle(Vect3 center, Vect3 normal, double r)

PlaneCircle(Vect3 center, Vect3 normal, double r, String texture)

Method Summary

boolean	containsPoint(Vect3 p)
Vect3	getCenter()
Vect3	getNormal()
double	getRadius()
ShapeClassification	getShapeClassification()
String	getTexture()
double	minDistanceToObjectFromP(Vect3 p)
Plane	planeContainingObject()
PlaneCircle	rotateAboutCwithAxisAandAngleT(Vect3 center, Vect3 axis, Angle tAngle)
String	toString()
PlaneCircle	translateByT(Vect3 t)

Methods inherited from class java.lang.Object

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

Constructor Detail

PlaneCircle

public PlaneCircle(Vect3 center,
                   Vect3 normal,
                   double r,
                   String texture)

Parameters:

center - the center point of the circle

normal - the orientation of the circle

r - the radius of the circle

Requires:

r >= 0, center != null, normal != null, normal.rho() != 0, texture != null,

Effects:

Creates a new circle with the specified size and location and orientation in 3D.

PlaneCircle

public PlaneCircle(Vect3 center,
                   Vect3 normal,
                   double r)

Parameters:

center - the center point of the circle

normal - the orientation of the circle

r - the radius of the circle

Requires:

r >= 0, center != null, normal != null, normal.rho() > 0

Effects:

Creates a new circle with the specified size and location and orientation in 3D.

Method Detail

getCenter

public Vect3 getCenter()

Returns:

the center point of this circle.

getNormal

public Vect3 getNormal()

Returns:

the unit vector perpendicular to the given circle with correct orientation as specified at initilization.

getRadius

public double getRadius()

Returns:

the radius of this circle.

getTexture

public String getTexture()

Returns:

texture of this object

planeContainingObject

public Plane planeContainingObject()

Returns:

the plane containing this

containsPoint

public boolean containsPoint(Vect3 p)

Specified by:

containsPoint in interface PhysicsShape

Returns:

true if p is within the geometric shape created by the intersection of a sphere of radius centered at centerPoint and the geometric shape created by moving this up and down this.normal by GameConstants.TOLERANCE, false otherwise

Requires:

v != null

minDistanceToObjectFromP

public double minDistanceToObjectFromP(Vect3 p)

Specified by:

minDistanceToObjectFromP in interface PhysicsShape

Returns:

the minimum distance between p and this

Requires:

p is not null

rotateAboutCwithAxisAandAngleT

public PlaneCircle rotateAboutCwithAxisAandAngleT(Vect3 center,
                                                  Vect3 axis,
                                                  Angle tAngle)

Specified by:

rotateAboutCwithAxisAandAngleT in interface PhysicsShape

Returns:

A PlaneCircle rotated about the line created by center and axis counterclockwise by an amount tAngle with same texture

Requires:

center != null, axis != null, axis.rho() > 0, tAngle != null.

translateByT

public PlaneCircle translateByT(Vect3 t)

Specified by:

translateByT in interface PhysicsShape

Returns:

A PlaneCircle translated by t with same texture

Requires:

t != null

toString

public String toString()

Overrides:

toString in class Object

getShapeClassification

public ShapeClassification getShapeClassification()

Specified by:

getShapeClassification in interface PhysicsShape