Class Point

java.lang.Object
  |
  +--Point

public class Point

extends java.lang.Object

Point stores and manipulates xyz triples representing 3 space points.

Field Summary

double	X Holds the X component
double	Y Holds the Y component
double	Z Holds the Z component

Constructor Summary

Point()
Create a new point and set it to zero

Point(double x, double y, double z)
Create a new point with the given x,y and z values

Point(Point p)
Create a new point by copying an existing point

Method Summary

static void	add(Point pd, Point p, Vector v) Static function that write addition of a point by adding a vector to a given destiation point
static Point	add(Point p, Vector v) Static function create a new point by adding a vector to a point.
void	add(Vector v) Add the given offset vector to this point
void	copy(Point p) Copy an existing point to this point
boolean	equals(Point p) Test if two points are equal
void	print(SceneWriter os) Print a human readable version of the point definition to the given destination
void	read(SceneReader is) Read the point from the given source
void	set(double x, double y, double z) Set this point to the given x,y and z values
java.lang.String	toString()
void	write(SceneWriter os) Write the point to the given destination

Methods inherited from class java.lang.Object

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

Field Detail

X

public double X

Holds the X component

Y

public double Y

Holds the Y component

Z

public double Z

Holds the Z component

Constructor Detail

Point

public Point()

Create a new point and set it to zero

Point

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

Create a new point with the given x,y and z values

Parameters:

x - the x value

y - the y value

z - the z value

Point

public Point(Point p)

Create a new point by copying an existing point

Method Detail

set

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

Set this point to the given x,y and z values

Parameters:

x - the x value

y - the y value

z - the z value

copy

public void copy(Point p)

Copy an existing point to this point

add

public void add(Vector v)

Add the given offset vector to this point

Parameters:

v - the vector to add

equals

public boolean equals(Point p)

Test if two points are equal

add

public static Point add(Point p,
                        Vector v)

Static function create a new point by adding a vector to a point.

Parameters:

p - the original point

v - the vector offset

Returns:

the new point

add

public static void add(Point pd,
                       Point p,
                       Vector v)

Static function that write addition of a point by adding a vector to a given destiation point

Parameters:

pd - the destination point

p - the original point

v - the vector offset

read

public void read(SceneReader is)
          throws java.io.IOException,
                 java.lang.NumberFormatException

Read the point from the given source

Parameters:

is - the source to read from

Throws:

java.io.IOException - if the light can not be read

java.io.NumberFormatException - if there a number format error is encountered

java.lang.NumberFormatException

write

public void write(SceneWriter os)
           throws java.io.IOException

Write the point to the given destination

Parameters:

os - the destination to write to

Throws:

java.io.IOException - if the write fails.

print

public void print(SceneWriter os)
           throws java.io.IOException

Print a human readable version of the point definition to the given destination

Parameters:

os - the destination to write to

Throws:

java.io.IOException - if the write fails.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object