math.geom3d.plane
Class Plane3D

java.lang.Object
  math.geom3d.plane.Plane3D

All Implemented Interfaces:

Serializable, Shape3D

public class Plane3D
extends Object
implements Shape3D

Author:

dlegland

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface math.geom3d.Shape3D

Shape3D.EmptySet3D

Field Summary

protected double	dx1
protected double	dx2
protected double	dy1
protected double	dy2
protected double	dz1
protected double	dz2
protected double	x0
protected double	y0
protected double	z0

Fields inherited from interface math.geom3d.Shape3D

ACCURACY, EMPTY_SET

Constructor Summary

Plane3D()

Plane3D(Point3D point, Vector3D vector1, Vector3D vector2)

Method Summary

Shape3D	clip(Box3D box)
boolean	contains(Point3D point)
static Plane3D	createXYPlane()
static Plane3D	createXZPlane()
static Plane3D	createYZPlane()
boolean	equals(Object obj)
Box3D	getBoundingBox()
double	getDistance(Point3D point) Gets the distance of the shape to the given point, or the distance of point to the frontier of the shape in the case of a plain shape.
Point3D	getLineIntersection(StraightLine3D line) Compute intersection of a line with this plane.
Vector3D	getNormalVector() Points towars the outside part of the plane.
Point3D	getOrigin()
Point3D	getPoint(double u, double v)
Point2D	getPointPosition(Point3D point)
Vector3D	getVector1()
Vector3D	getVector2()
boolean	isBounded() Returns true if the shape is bounded, that is if we can draw a finite rectangle enclosing the shape.
boolean	isEmpty()
Point3D	projectPoint(Point3D point)
Vector3D	projectVector(Vector3D vect)
Shape3D	transform(AffineTransform3D trans)

Methods inherited from class java.lang.Object

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

Field Detail

x0

protected double x0

y0

protected double y0

z0

protected double z0

dx1

protected double dx1

dy1

protected double dy1

dz1

protected double dz1

dx2

protected double dx2

dy2

protected double dy2

dz2

protected double dz2

Constructor Detail

Plane3D

public Plane3D()

Plane3D

public Plane3D(Point3D point,
               Vector3D vector1,
               Vector3D vector2)

Method Detail

createXYPlane

public static final Plane3D createXYPlane()

createXZPlane

public static final Plane3D createXZPlane()

createYZPlane

public static final Plane3D createYZPlane()

getOrigin

public Point3D getOrigin()

getVector1

public Vector3D getVector1()

getVector2

public Vector3D getVector2()

getNormalVector

public Vector3D getNormalVector()

Points towars the outside part of the plane.

Returns:

the outer normal vector.

getLineIntersection

public Point3D getLineIntersection(StraightLine3D line)

Compute intersection of a line with this plane. Uses algorithm 1 given in: http://local.wasp.uwa.edu.au/~pbourke/geometry/planeline/.

Parameters:

line - the line which intersects the plane

Returns:

the intersection point

projectPoint

public Point3D projectPoint(Point3D point)

projectVector

public Vector3D projectVector(Vector3D vect)

getPoint

public Point3D getPoint(double u,
                        double v)

getPointPosition

public Point2D getPointPosition(Point3D point)

clip

public Shape3D clip(Box3D box)

Specified by:

clip in interface Shape3D

contains

public boolean contains(Point3D point)

Specified by:

contains in interface Shape3D

getBoundingBox

public Box3D getBoundingBox()

Specified by:

getBoundingBox in interface Shape3D

getDistance

public double getDistance(Point3D point)

Description copied from interface: Shape3D

Gets the distance of the shape to the given point, or the distance of point to the frontier of the shape in the case of a plain shape.

Specified by:

getDistance in interface Shape3D

isBounded

public boolean isBounded()

Description copied from interface: Shape3D

Returns true if the shape is bounded, that is if we can draw a finite rectangle enclosing the shape. For example, a straight line or a parabola are not bounded.

Specified by:

isBounded in interface Shape3D

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Shape3D

transform

public Shape3D transform(AffineTransform3D trans)

Specified by:

transform in interface Shape3D

equals

public boolean equals(Object obj)

Overrides:

equals in class Object