javax.vecmath
Class Tuple2f

java.lang.Object
  extended by javax.vecmath.Tuple2f
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable
Direct Known Subclasses:
Point2f, TexCoord2f, Vector2f

public abstract class Tuple2f
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

A generic 2-element tuple that is represented by single-precision floating point x,y coordinates.

See Also:
Serialized Form

Field Summary
 float x
          The x coordinate.
 float y
          The y coordinate.
 
Constructor Summary
Tuple2f()
          Constructs and initializes a Tuple2f to (0,0).
Tuple2f(float[] t)
          Constructs and initializes a Tuple2f from the specified array.
Tuple2f(float x, float y)
          Constructs and initializes a Tuple2f from the specified xy coordinates.
Tuple2f(Tuple2d t1)
          Constructs and initializes a Tuple2f from the specified Tuple2d.
Tuple2f(Tuple2f t1)
          Constructs and initializes a Tuple2f from the specified Tuple2f.
 
Method Summary
 void absolute()
          Sets each component of this tuple to its absolute value.
 void absolute(Tuple2f t)
          Sets each component of the tuple parameter to its absolute value and places the modified values into this tuple.
 void add(Tuple2f t1)
          Sets the value of this tuple to the vector sum of itself and tuple t1.
 void add(Tuple2f t1, Tuple2f t2)
          Sets the value of this tuple to the vector sum of tuples t1 and t2.
 void clamp(float min, float max)
          Clamps this tuple to the range [low, high].
 void clamp(float min, float max, Tuple2f t)
          Clamps the tuple parameter to the range [low, high] and places the values into this tuple.
 void clampMax(float max)
          Clamps the maximum value of this tuple to the max parameter.
 void clampMax(float max, Tuple2f t)
          Clamps the maximum value of the tuple parameter to the max parameter and places the values into this tuple.
 void clampMin(float min)
          Clamps the minimum value of this tuple to the min parameter.
 void clampMin(float min, Tuple2f t)
          Clamps the minimum value of the tuple parameter to the min parameter and places the values into this tuple.
 java.lang.Object clone()
          Creates a new object of the same class as this object.
 boolean epsilonEquals(Tuple2f t1, float 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 t1)
          Returns true if the Object t1 is of type Tuple2f and all of the data members of t1 are equal to the corresponding data members in this Tuple2f.
 boolean equals(Tuple2f t1)
          Returns true if all of the data members of Tuple2f t1 are equal to the corresponding data members in this Tuple2f.
 void get(float[] t)
          Copies the value of the elements of this tuple into the array t.
 float getX()
          Get the x coordinate.
 float getY()
          Get the y coordinate.
 int hashCode()
          Returns a hash code value based on the data values in this object.
 void interpolate(Tuple2f t1, float alpha)
          Linearly interpolates between this tuple and tuple t1 and places the result into this tuple: this = (1-alpha)*this + alpha*t1.
 void interpolate(Tuple2f t1, Tuple2f t2, float 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(Tuple2f t1)
          Sets the value of this tuple to the negation of tuple t1.
 void scale(float s)
          Sets the value of this tuple to the scalar multiplication of itself.
 void scale(float s, Tuple2f t1)
          Sets the value of this tuple to the scalar multiplication of tuple t1.
 void scaleAdd(float s, Tuple2f t1)
          Sets the value of this tuple to the scalar multiplication of itself and then adds tuple t1 (this = s*this + t1).
 void scaleAdd(float s, Tuple2f t1, Tuple2f 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(float[] t)
          Sets the value of this tuple from the 2 values specified in the array.
 void set(float x, float y)
          Sets the value of this tuple to the specified xy coordinates.
 void set(Tuple2d t1)
          Sets the value of this tuple to the value of the Tuple2d argument.
 void set(Tuple2f t1)
          Sets the value of this tuple to the value of the Tuple2f argument.
 void setX(float x)
          Set the x coordinate.
 void setY(float y)
          Set the y coordinate.
 void sub(Tuple2f t1)
          Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).
 void sub(Tuple2f t1, Tuple2f 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 Tuple2f.
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

x

public float x
The x coordinate.


y

public float y
The y coordinate.

Constructor Detail

Tuple2f

public Tuple2f(float x,
               float y)
Constructs and initializes a Tuple2f from the specified xy coordinates.

Parameters:
x - the x coordinate
y - the y coordinate

Tuple2f

public Tuple2f(float[] t)
Constructs and initializes a Tuple2f from the specified array.

Parameters:
t - the array of length 2 containing xy in order

Tuple2f

public Tuple2f(Tuple2f t1)
Constructs and initializes a Tuple2f from the specified Tuple2f.

Parameters:
t1 - the Tuple2f containing the initialization x y data

Tuple2f

public Tuple2f(Tuple2d t1)
Constructs and initializes a Tuple2f from the specified Tuple2d.

Parameters:
t1 - the Tuple2d containing the initialization x y data

Tuple2f

public Tuple2f()
Constructs and initializes a Tuple2f to (0,0).

Method Detail

set

public final void set(float x,
                      float y)
Sets the value of this tuple to the specified xy coordinates.

Parameters:
x - the x coordinate
y - the y coordinate

set

public final void set(float[] t)
Sets the value of this tuple from the 2 values specified in the array.

Parameters:
t - the array of length 2 containing xy in order

set

public final void set(Tuple2f t1)
Sets the value of this tuple to the value of the Tuple2f argument.

Parameters:
t1 - the tuple to be copied

set

public final void set(Tuple2d t1)
Sets the value of this tuple to the value of the Tuple2d argument.

Parameters:
t1 - the tuple to be copied

get

public final void get(float[] 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

add

public final void add(Tuple2f t1,
                      Tuple2f 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

add

public final void add(Tuple2f t1)
Sets the value of this tuple to the vector sum of itself and tuple t1.

Parameters:
t1 - the other tuple

sub

public final void sub(Tuple2f t1,
                      Tuple2f 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

sub

public final void sub(Tuple2f t1)
Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).

Parameters:
t1 - the other tuple

negate

public final void negate(Tuple2f t1)
Sets the value of this tuple to the negation of tuple t1.

Parameters:
t1 - the source tuple

negate

public final void negate()
Negates the value of this vector in place.


scale

public final void scale(float s,
                        Tuple2f t1)
Sets the value of this tuple to the scalar multiplication of tuple t1.

Parameters:
s - the scalar value
t1 - the source tuple

scale

public final void scale(float s)
Sets the value of this tuple to the scalar multiplication of itself.

Parameters:
s - the scalar value

scaleAdd

public final void scaleAdd(float s,
                           Tuple2f t1,
                           Tuple2f 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

scaleAdd

public final void scaleAdd(float s,
                           Tuple2f 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

hashCode

public int hashCode()
Returns a hash code value based on the data values in this object. Two different Tuple2f objects with identical data values (i.e., Tuple2f.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

equals

public boolean equals(Tuple2f t1)
Returns true if all of the data members of Tuple2f t1 are equal to the corresponding data members in this Tuple2f.

Parameters:
t1 - the vector 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 Tuple2f and all of the data members of t1 are equal to the corresponding data members in this Tuple2f.

Overrides:
equals in class java.lang.Object
Parameters:
t1 - the object with which the comparison is made
Returns:
true or false

epsilonEquals

public boolean epsilonEquals(Tuple2f t1,
                             float 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)].

Parameters:
t1 - the tuple to be compared to this tuple
epsilon - the threshold value
Returns:
true or false

toString

public java.lang.String toString()
Returns a string that contains the values of this Tuple2f. The form is (x,y).

Overrides:
toString in class java.lang.Object
Returns:
the String representation

clamp

public final void clamp(float min,
                        float max,
                        Tuple2f 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

clampMin

public final void clampMin(float min,
                           Tuple2f 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
t - the source tuple, which will not be modified

clampMax

public final void clampMax(float max,
                           Tuple2f 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

absolute

public final void absolute(Tuple2f 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

clamp

public final void clamp(float min,
                        float 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

clampMin

public final void clampMin(float min)
Clamps the minimum value of this tuple to the min parameter.

Parameters:
min - the lowest value in this tuple after clamping

clampMax

public final void clampMax(float max)
Clamps the maximum value of this tuple to the max parameter.

Parameters:
max - the highest value in the tuple after clamping

absolute

public final void absolute()
Sets each component of this tuple to its absolute value.


interpolate

public final void interpolate(Tuple2f t1,
                              Tuple2f t2,
                              float 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

interpolate

public final void interpolate(Tuple2f t1,
                              float 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

clone

public java.lang.Object clone()
Creates a new object of the same class as this object.

Overrides:
clone in class java.lang.Object
Returns:
a clone of this instance.
Throws:
java.lang.OutOfMemoryError - if there is not enough memory.
Since:
vecmath 1.3
See Also:
Cloneable

getX

public final float getX()
Get the x coordinate.

Returns:
the x coordinate.
Since:
vecmath 1.5

setX

public final void setX(float x)
Set the x coordinate.

Parameters:
x - value to x coordinate.
Since:
vecmath 1.5

getY

public final float getY()
Get the y coordinate.

Returns:
the y coordinate.
Since:
vecmath 1.5

setY

public final void setY(float y)
Set the y coordinate.

Parameters:
y - value to y coordinate.
Since:
vecmath 1.5


Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.