javax.vecmath

Class Tuple2f

public abstract class Tuple2f extends Object implements Serializable

A generic 2 element tuple that is represented by single precision floating point x,y coordinates.
Field Summary
floatx
The x coordinate.
floaty
The y coordinate.
Constructor Summary
Tuple2f(float x, float y)
Constructs and initializes a Tuple2f from the specified xy coordinates.
Tuple2f(float[] t)
Constructs and initializes a Tuple2f from the specified array.
Tuple2f(Tuple2f t1)
Constructs and initializes a Tuple2f from the specified Tuple2f.
Tuple2f(Tuple2d t1)
Constructs and initializes a Tuple2f from the specified Tuple2d.
Tuple2f()
Constructs and initializes a Tuple2f to (0,0).
Method Summary
voidabsolute(Tuple2f t)
Sets each component of the tuple parameter to its absolute value and places the modified values into this tuple.
voidabsolute()
Sets each component of this tuple to its absolute value.
voidadd(Tuple2f t1, Tuple2f t2)
Sets the value of this tuple to the vector sum of tuples t1 and t2.
voidadd(Tuple2f t1)
Sets the value of this tuple to the vector sum of itself and tuple t1.
voidclamp(float min, float max, Tuple2f t)
Clamps the tuple parameter to the range [low, high] and places the values into this tuple.
voidclamp(float min, float max)
Clamps this tuple to the range [low, high].
voidclampMax(float max, Tuple2f t)
Clamps the maximum value of the tuple parameter to the max parameter and places the values into this tuple.
voidclampMax(float max)
Clamps the maximum value of this tuple to the max parameter.
voidclampMin(float min, Tuple2f t)
Clamps the minimum value of the tuple parameter to the min parameter and places the values into this tuple.
voidclampMin(float min)
Clamps the minimum value of this tuple to the min parameter.
booleanepsilonEquals(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.
booleanequals(Tuple2f t1)
Returns true if all of the data members of Tuple2f t1 are equal to the corresponding data members in this
booleanequals(Object o1)
Returns true if the Object o1 is of type Tuple2f and all of the data members of t1 are equal to the corresponding data members in this Tuple2f.
voidget(float[] t)
Copies the value of the elements of this tuple into the array t[].
inthashCode()
Returns a hash number based on the data values in this object.
voidinterpolate(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.
voidinterpolate(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.
voidnegate(Tuple2f t1)
Sets the value of this tuple to the negation of tuple t1.
voidnegate()
Negates the value of this vector in place.
voidscale(float s, Tuple2f t1)
Sets the value of this tuple to the scalar multiplication of tuple t1.
voidscale(float s)
Sets the value of this tuple to the scalar multiplication of itself.
voidscaleAdd(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).
voidscaleAdd(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).
voidset(float x, float y)
Sets the value of this tuple to the specified xy coordinates.
voidset(float[] t)
Sets the value of this tuple from the 2 values specified in the array.
voidset(Tuple2f t1)
Sets the value of this tuple to the value of the Tuple2f argument.
voidset(Tuple2d t1)
Sets the value of this tuple to the value of the Tuple2d argument.
voidsub(Tuple2f t1, Tuple2f t2)
Sets the value of this tuple to the vector difference of tuple t1 and t2 (this = t1 - t2).
voidsub(Tuple2f t1)
Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).
StringtoString()
Returns a string that contains the values of this Tuple2f.

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

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

absolute

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

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

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

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

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

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

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

UNKNOWN: t the source tuple, which will not be modified

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

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

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

Parameters: t1 the vector with which the comparison is made.

equals

public boolean equals(Object o1)
Returns true if the Object o1 is of type Tuple2f and all of the data members of t1 are equal to the corresponding data members in this Tuple2f.

Parameters: o1 the object with which the comparison is made.

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

hashCode

public int hashCode()
Returns a hash number based on the data values in this object. Two different Tuple2f objects with identical data values (ie, returns true for equals(Tuple2f) ) will return the same hash number. Two vectors with different data members may return the same hash value, although this is not likely.

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

negate

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

Parameters: t1 the source vector

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

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

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

toString

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

Returns: the String representation