javax.vecmath
Class Tuple4d

java.lang.Object
  javax.vecmath.Tuple4d

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

Point4d, Quat4d, Vector4d

public abstract class Tuple4d
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

A generic 4 element tuple that is represented by double precision floating point x,y,z and w coordinates.

Author:

Kenji hiranabe

See Also:

Serialized Form

Field Summary

double	w The w coordinate.
double	x The x coordinate.
double	y The y coordinate.
double	z The z coordinate.

Constructor Summary

Tuple4d()
Constructs and initializes a Tuple4d to (0,0,0,0).

Tuple4d(double[] t)
Constructs and initializes a Tuple4d from the specified array.

Tuple4d(double x, double y, double z, double w)
Constructs and initializes a Tuple4d from the specified xyzw coordinates.

Tuple4d(Tuple4d t1)
Constructs and initializes a Tuple4d from the specified Tuple4d.

Tuple4d(Tuple4f t1)
Constructs and initializes a Tuple4d from the specified Tuple4f.

Method Summary

void	absolute() Sets each component of this tuple to its absolute value.
void	absolute(Tuple4d t) Sets each component of the tuple parameter to its absolute value and places the modified values into this tuple.
void	add(Tuple4d t1) Sets the value of this tuple to the vector sum of itself and tuple t1.
void	add(Tuple4d t1, Tuple4d t2) Sets the value of this tuple to the vector sum of tuples t1 and t2.
void	clamp(double min, double max) Clamps this tuple to the range [low, high].
void	clamp(double min, double max, Tuple4d t) Clamps the tuple parameter to the range [low, high] and places the values into this tuple.
void	clampMax(double max) Clamps the maximum value of this tuple to the max parameter.
void	clampMax(double max, Tuple4d t) Clamps the maximum value of the tuple parameter to the max parameter and places the values into this tuple.
void	clampMin(double min) Clamps the minimum value of this tuple to the min parameter.
void	clampMin(double min, Tuple4d t) Clamps the minimum value of the tuple parameter to the min parameter and places the values into this tuple.
abstract java.lang.Object	clone()
boolean	epsilonEquals(Tuple4d t1, double epsilon) Returns true if the L-infinite distance between this tuple and tuple t1 is less than or equal to the epsilon parameter, otherwise returns false.
boolean	equals(java.lang.Object o1)
boolean	equals(Tuple4d t1) Returns true if all of the data members of Tuple4d t1 are equal to the corresponding data members in this
void	get(double[] t) Copies the value of the elements of this tuple into the array t[].
void	get(Tuple4d t) Gets the value of this tuple and copies the values into the Tuple4d.
int	hashCode() Returns a hash number based on the data values in this object.
void	interpolate(Tuple4d t1, double alpha) Linearly interpolates between this tuple and tuple t1 and places the result into this tuple: this = (1-alpha)*this + alpha*t1.
void	interpolate(Tuple4d t1, Tuple4d t2, double alpha) Linearly interpolates between tuples t1 and t2 and places the result into this tuple: this = (1-alpha)*t1 + alpha*t2.
void	negate() Negates the value of this vector in place.
void	negate(Tuple4d t1) Sets the value of this tuple to the negation of tuple t1.
void	scale(double s) Sets the value of this tuple to the scalar multiplication of itself.
void	scale(double s, Tuple4d t1) Sets the value of this tuple to the scalar multiplication of tuple t1.
void	scaleAdd(double s, Tuple4d t1) Sets the value of this tuple to the scalar multiplication of itself and then adds tuple t1 (this = s*this + t1).
void	scaleAdd(double s, Tuple4d t1, Tuple4d t2) Sets the value of this tuple to the scalar multiplication of tuple t1 and then adds tuple t2 (this = s*t1 + t2).
void	set(double[] t) Sets the value of this tuple from the 4 values specified in the array.
void	set(double x, double y, double z, double w) Sets the value of this tuple to the specified xyzw coordinates.
void	set(Tuple4d t1) Sets the value of this tuple to the value of tuple t1.
void	set(Tuple4f t1) Sets the value of this tuple to the value of tuple t1.
void	sub(Tuple4d t1) Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).
void	sub(Tuple4d t1, Tuple4d t2) Sets the value of this tuple to the vector difference of tuple t1 and t2 (this = t1 - t2).
java.lang.String	toString() Returns a string that contains the values of this Tuple4d.

Methods inherited from class java.lang.Object

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

Field Detail

w

public double w

The w coordinate.

x

public double x

The x coordinate.

y

public double y

The y coordinate.

z

public double z

The z coordinate.

Constructor Detail

Tuple4d

public Tuple4d()

Constructs and initializes a Tuple4d to (0,0,0,0).

Tuple4d

public Tuple4d(double[] t)

Constructs and initializes a Tuple4d from the specified array.

Parameters:

t - the array of length 4 containing xyzw in order

Tuple4d

public Tuple4d(double x,
               double y,
               double z,
               double w)

Constructs and initializes a Tuple4d from the specified xyzw coordinates.

Parameters:

x - the x coordinate

y - the y coordinate

z - the z coordinate

w - the w coordinate

Tuple4d

public Tuple4d(Tuple4d t1)

Constructs and initializes a Tuple4d from the specified Tuple4d.

Parameters:

t1 - the Tuple4d containing the initialization x y z w data

Tuple4d

public Tuple4d(Tuple4f t1)

Constructs and initializes a Tuple4d from the specified Tuple4f.

Parameters:

t1 - the Tuple4f containing the initialization x y z w data

Method Detail

absolute

public final void absolute()

Sets each component of this tuple to its absolute value.

absolute

public final void absolute(Tuple4d t)

Sets each component of the tuple parameter to its absolute value and places the modified values into this tuple.

Parameters:

t - the source tuple, which will not be modified

add

public final void add(Tuple4d t1)

Sets the value of this tuple to the vector sum of itself and tuple t1.

Parameters:

t1 - the other tuple

add

public final void add(Tuple4d t1,
                      Tuple4d t2)

Sets the value of this tuple to the vector sum of tuples t1 and t2.

Parameters:

t1 - the first tuple

t2 - the second tuple

clamp

public final void clamp(double min,
                        double max)

Clamps this tuple to the range [low, high].

Parameters:

min - the lowest value in this tuple after clamping

max - the highest value in this tuple after clamping

clamp

public final void clamp(double min,
                        double max,
                        Tuple4d t)

Clamps the tuple parameter to the range [low, high] and places the values into this tuple.

Parameters:

min - the lowest value in the tuple after clamping

max - the highest value in the tuple after clamping

t - the source tuple, which will not be modified

clampMax

public final void clampMax(double max)

Clamps the maximum value of this tuple to the max parameter.

Parameters:

max - the highest value in the tuple after clamping

clampMax

public final void clampMax(double max,
                           Tuple4d t)

Clamps the maximum value of the tuple parameter to the max parameter and places the values into this tuple.

Parameters:

max - the highest value in the tuple after clamping

t - the source tuple, which will not be modified

clampMin

public final void clampMin(double min)

Clamps the minimum value of this tuple to the min parameter.

Parameters:

min - the lowest value in this tuple after clamping

clampMin

public final void clampMin(double min,
                           Tuple4d t)

Clamps the minimum value of the tuple parameter to the min parameter and places the values into this tuple.

Parameters:

min - the lowest value in the tuple after clamping

clone

public abstract java.lang.Object clone()

Overrides:

clone in class java.lang.Object

epsilonEquals

public boolean epsilonEquals(Tuple4d t1,
                             double epsilon)

Returns true if the L-infinite distance between this tuple and tuple t1 is less than or equal to the epsilon parameter, otherwise returns false. The L-infinite distance is equal to MAX[abs(x1-x2), abs(y1-y2), abs(z1-z2), abs(w1-w2)].

Parameters:

t1 - the tuple to be compared to this tuple

epsilon - the threshold value

equals

public boolean equals(java.lang.Object o1)

Overrides:

equals in class java.lang.Object

equals

public boolean equals(Tuple4d t1)

Returns true if all of the data members of Tuple4d t1 are equal to the corresponding data members in this

Parameters:

t1 - the vector with which the comparison is made.

get

public final void get(double[] t)

Copies the value of the elements of this tuple into the array t[].

Parameters:

t - the array that will contain the values of the vector

get

public final void get(Tuple4d t)

Gets the value of this tuple and copies the values into the Tuple4d.

Parameters:

t - Tuple4d object into which that values of this object are copied

hashCode

public int hashCode()

Returns a hash number based on the data values in this object. Two different Tuple4d objects with identical data values (ie, returns true for equals(Tuple4d) ) will return the same hash number. Two vectors with different data members may return the same hash value, although this is not likely.

Overrides:

hashCode in class java.lang.Object

interpolate

public final void interpolate(Tuple4d t1,
                              double alpha)

Linearly interpolates between this tuple and tuple t1 and places the result into this tuple: this = (1-alpha)*this + alpha*t1.

Parameters:

t1 - the first tuple

alpha - the alpha interpolation parameter

interpolate

public final void interpolate(Tuple4d t1,
                              Tuple4d t2,
                              double alpha)

Linearly interpolates between tuples t1 and t2 and places the result into this tuple: this = (1-alpha)*t1 + alpha*t2.

Parameters:

t1 - the first tuple

t2 - the second tuple

alpha - the alpha interpolation parameter

negate

public final void negate()

Negates the value of this vector in place.

negate

public final void negate(Tuple4d t1)

Sets the value of this tuple to the negation of tuple t1.

Parameters:

t1 - the source vector

scale

public final void scale(double s)

Sets the value of this tuple to the scalar multiplication of itself.

Parameters:

s - the scalar value

scale

public final void scale(double s,
                        Tuple4d t1)

Sets the value of this tuple to the scalar multiplication of tuple t1.

Parameters:

s - the scalar value

t1 - the source tuple

scaleAdd

public final void scaleAdd(double s,
                           Tuple4d t1)

Sets the value of this tuple to the scalar multiplication of itself and then adds tuple t1 (this = s*this + t1).

Parameters:

s - the scalar value

t1 - the tuple to be added

scaleAdd

public final void scaleAdd(double s,
                           Tuple4d t1,
                           Tuple4d t2)

Sets the value of this tuple to the scalar multiplication of tuple t1 and then adds tuple t2 (this = s*t1 + t2).

Parameters:

s - the scalar value

t1 - the tuple to be multipled

t2 - the tuple to be added

set

public final void set(double[] t)

Sets the value of this tuple from the 4 values specified in the array.

Parameters:

t - the array of length 4 containing xyzw in order

set

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

Sets the value of this tuple to the specified xyzw coordinates.

Parameters:

x - the x coordinate

y - the y coordinate

z - the z coordinate

w - the w coordinate

set

public final void set(Tuple4d t1)

Sets the value of this tuple to the value of tuple t1.

Parameters:

t1 - the tuple to be copied

set

public final void set(Tuple4f t1)

Sets the value of this tuple to the value of tuple t1.

Parameters:

t1 - the tuple to be copied

sub

public final void sub(Tuple4d t1)

Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).

Parameters:

t1 - the other tuple

sub

public final void sub(Tuple4d t1,
                      Tuple4d t2)

Sets the value of this tuple to the vector difference of tuple t1 and t2 (this = t1 - t2).

Parameters:

t1 - the first tuple

t2 - the second tuple

toString

public java.lang.String toString()

Returns a string that contains the values of this Tuple4d. The form is (x,y,z,w).

Overrides:

toString in class java.lang.Object

Returns:

the String representation