geometry
Class J3Vector

java.lang.Object
  geometry.J3Vector

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

J3Line, J3UnitVector

public class J3Vector
extends java.lang.Object
implements java.io.Serializable

  This class provides a base to represent/handle three vector.

See Also:

Serialized Form

Constructor Summary

J3Vector()
Constructor.

J3Vector(double x, double y, double z)
Constructor.

Method Summary

static J3Vector	add(J3Vector a, J3Vector b) add vectors a+b
void	decrement(J3Vector a, J3Vector b) decrement vectors a-=b
static double	getAngleInDegree(J3Vector a, J3Vector b) calculate the angle [deg] between two vectors.
static double	getAngleInRadian(J3Vector a, J3Vector b) calculate the angle [rad] between two vectors.
static J3Vector	getCrossProduct(J3Vector a, J3Vector b) calculate the cross Products axb
static double	getDotProduct(J3Vector a, J3Vector b) calculate the dot-product
double	getLength() get the vector length
double	getX() get x component
double	getY() get y component
double	getZ() get z component
void	increment(J3Vector a, J3Vector b) increment vectors a+=b
static J3Vector	multipleFactor(double f, J3Vector a) calculate scalor x vector fxa
void	putVector(J3Vector a) put a new vector a = b
void	setAll(double x, double y, double z) set all xyz components
void	setLength() calculate the vector length to set
void	setX(double x) set x component
void	setY(double y) set y component
void	setZ(double z) set z component
static J3Vector	subtract(J3Vector a, J3Vector b) sabtract vectors a-b

Methods inherited from class java.lang.Object

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

Constructor Detail

J3Vector

public J3Vector(double x,
                double y,
                double z)

Constructor. For XYZ coordinate system.

J3Vector

public J3Vector()

Constructor. Default setting: x=y=0, z=1.0

Method Detail

setX

public void setX(double x)

set x component

setY

public void setY(double y)

set y component

setZ

public void setZ(double z)

set z component

setAll

public void setAll(double x,
                   double y,
                   double z)

set all xyz components

putVector

public void putVector(J3Vector a)

put a new vector a = b

getX

public double getX()

get x component

getY

public double getY()

get y component

getZ

public double getZ()

get z component

setLength

public void setLength()

calculate the vector length to set

getLength

public double getLength()

get the vector length

getDotProduct

public static double getDotProduct(J3Vector a,
                                   J3Vector b)

calculate the dot-product

getAngleInRadian

public static double getAngleInRadian(J3Vector a,
                                      J3Vector b)

calculate the angle [rad] between two vectors. Return 0 if either of the two vectors is 0.

getAngleInDegree

public static double getAngleInDegree(J3Vector a,
                                      J3Vector b)

calculate the angle [deg] between two vectors. Return 0 if either of the two vectors is 0.

add

public static J3Vector add(J3Vector a,
                           J3Vector b)

add vectors a+b

subtract

public static J3Vector subtract(J3Vector a,
                                J3Vector b)

sabtract vectors a-b

increment

public void increment(J3Vector a,
                      J3Vector b)

increment vectors a+=b

decrement

public void decrement(J3Vector a,
                      J3Vector b)

decrement vectors a-=b

getCrossProduct

public static J3Vector getCrossProduct(J3Vector a,
                                       J3Vector b)

calculate the cross Products axb

multipleFactor

public static J3Vector multipleFactor(double f,
                                      J3Vector a)

calculate scalor x vector fxa