Package oracle.spatial.geometry

Class JPoint3DD

java.lang.Object

oracle.spatial.geometry.JPoint3DD

Direct Known Subclasses:

UnitSphere

public class JPoint3DD
extends java.lang.Object

Immutable 3D point or vector.

Constructor Summary

Constructors

Modifier	Constructor	Description
	JPoint3DD()	Creata the zero vector.
	JPoint3DD(double x, double y, double z)	Create a 3D point or vector.
protected	JPoint3DD(double x, double y, double z, double divisor)	Create a scaled JPoint3DD, (x, y, z)/divisor.

Method Summary

Modifier and Type	Method	Description
static JPoint3DD	cross(JPoint3DD a, JPoint3DD b)	Return the cross product (a x b).
static double	dot(JPoint3DD a, JPoint3DD b)	Return the dot product of two 3D vectors.
boolean	equals(java.lang.Object obj)
double	getX()	Get x.
double	getY()	Get y.
double	getZ()	Get z.
int	hashCode()
boolean	isZero()	Test if all three values x, y, and z are zero.
double	length()	Return the length of the vector.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

JPoint3DD

public JPoint3DD()

Creata the zero vector.

JPoint3DD

public JPoint3DD(double x,
                 double y,
                 double z)

Create a 3D point or vector.

Parameters:

x -

y -

z -

JPoint3DD

protected JPoint3DD(double x,
                    double y,
                    double z,
                    double divisor)

Create a scaled JPoint3DD, (x, y, z)/divisor. If the divisor is zero, will create a zero vector (instead of dividing by zero).

Parameters:

x -

y -

z -

divisor - amount to divide (x, y, z) by; if zero, creates a zero vector.

Method Detail

getX

public final double getX()

Get x.

Returns:

x value

getY

public final double getY()

Get y.

Returns:

y value

getZ

public final double getZ()

Get z.

Returns:

z value

length

public final double length()

Return the length of the vector.

Returns:

cartesian length

isZero

public final boolean isZero()

Test if all three values x, y, and z are zero.

Returns:

true if this is the zero vector.

cross

public static final JPoint3DD cross(JPoint3DD a,
                                    JPoint3DD b)

Return the cross product (a x b).

Parameters:

a -

b -

Returns:

cross product

dot

public static final double dot(JPoint3DD a,
                               JPoint3DD b)

Return the dot product of two 3D vectors.

Parameters:

a -

b -

Returns:

dot product

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object