javax.vecmath
Class Tuple3b

java.lang.Object
  |
  +--javax.vecmath.Tuple3b

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

Color3b

public abstract class Tuple3b

extends java.lang.Object

implements java.io.Serializable

A three byte tuple. Note that Java defines a byte as a signed integer in the range [-128, 127]. However, colors are more typically represented by values in the range [0, 255]. Java 3D recognizes this and, in those cases where Tuple3b is used to represent color, treats the bytes as if the range were [0, 255]---in other words, as if the bytes were unsigned. Values greater than 127 can be assigned to a byte variable using a type cast. For example:

byteVariable = (byte) intValue; // intValue can be > 127

If intValue is greater than 127, then byteVariable will be negative. The correct value will be extracted when it is used (by masking off the upper bits).

See Also:

Serialized Form

Field Summary

byte	x The first value.
byte	y The second value.
byte	z The third value.

Constructor Summary

Tuple3b()
Constructs and initializes a Tuple3b to (0,0,0).

Tuple3b(byte[] t)
Constructs and initializes a Tuple3b from input array of length 3.

Tuple3b(byte b1, byte b2, byte b3)
Constructs and initializes a Tuple3b from the specified three values.

Tuple3b(Tuple3b t1)
Constructs and initializes a Tuple3b from the specified Tuple3b.

Method Summary

boolean	equals(java.lang.Object t1) Returns true if the Object t1 is of type Tuple3b and all of the data members of t1 are equal to the corresponding data members in this Tuple3b.
boolean	equals(Tuple3b t1) Returns true if all of the data members of tuple t1 are equal to the corresponding data members in this tuple.
void	get(byte[] t) Places the value of the x,y,z components of this Tuple3b into the array of length 3.
void	get(Tuple3b t1) Places the value of the x,y,z components of this tuple into the tuple t1.
int	hashCode() Returns a hash code value based on the data values in this object.
void	set(byte[] t) Sets the value of the x,y,z, data members of this tuple to the values in the array t of length 3.
void	set(Tuple3b t1) Sets the value of the data members of this tuple to the value of the argument tuple t1.
java.lang.String	toString() Returns a string that contains the values of this Tuple3b.

Methods inherited from class java.lang.Object

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

Field Detail

x

public byte x

The first value.

y

public byte y

The second value.

z

public byte z

The third value.

Constructor Detail

Tuple3b

public Tuple3b(byte b1,
               byte b2,
               byte b3)

Constructs and initializes a Tuple3b from the specified three values.

Parameters:

b1 - the first value

b2 - the second value

b3 - the third value

Tuple3b

public Tuple3b(byte[] t)

Constructs and initializes a Tuple3b from input array of length 3.

Parameters:

t - the array of length 3 containing b1 b2 b3 in order

Tuple3b

public Tuple3b(Tuple3b t1)

Constructs and initializes a Tuple3b from the specified Tuple3b.

Parameters:

t1 - the Tuple3b containing the initialization x y z data

Tuple3b

public Tuple3b()

Constructs and initializes a Tuple3b to (0,0,0).

Method Detail

toString

public java.lang.String toString()

Returns a string that contains the values of this Tuple3b.

Overrides:

toString in class java.lang.Object

Returns:

a String with the values

get

public final void get(byte[] t)

Places the value of the x,y,z components of this Tuple3b into the array of length 3.

Parameters:

t - array of length 3 into which the component values are copied

get

public final void get(Tuple3b t1)

Places the value of the x,y,z components of this tuple into the tuple t1.

Parameters:

t1 - the tuple into which the values are placed

set

public final void set(Tuple3b t1)

Sets the value of the data members of this tuple to the value of the argument tuple t1.

Parameters:

t1 - the source tuple for the memberwise copy

set

public final void set(byte[] t)

Sets the value of the x,y,z, data members of this tuple to the values in the array t of length 3.

Parameters:

t - array of length 3 which is the source for the memberwise copy

equals

public boolean equals(Tuple3b t1)

Returns true if all of the data members of tuple t1 are equal to the corresponding data members in this tuple.

Parameters:

t1 - the tuple with which the comparison is made

Returns:

true or false

equals

public boolean equals(java.lang.Object t1)

Returns true if the Object t1 is of type Tuple3b and all of the data members of t1 are equal to the corresponding data members in this Tuple3b.

Overrides:

equals in class java.lang.Object

Parameters:

t1 - the object with which the comparison is made

hashCode

public int hashCode()

Returns a hash code value based on the data values in this object. Two different Tuple3b objects with identical data values (i.e., Tuple3b.equals returns true) will return the same hash code value. Two objects with different data members may return the same hash value, although this is not likely.

Overrides:

hashCode in class java.lang.Object

Returns:

the integer hash code value