java.lang.Object
javax.vecmath.Tuple2d
- All Implemented Interfaces:
Serializable
,Cloneable
A generic 2 element tuple that is represented by
double precision floating point x,y coordinates.
- Version:
- specification 1.1, implementation $Revision: 1.4 $, $Date: 1999/10/05 07:03:50 $
- Author:
- Kenji hiranabe
- See Also:
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionTuple2d()
Constructs and initializes a Tuple2d to (0,0).Tuple2d
(double[] t) Constructs and initializes a Tuple2d from the specified array.Tuple2d
(double x, double y) Constructs and initializes a Tuple2d from the specified xy coordinates.Constructs and initializes a Tuple2d from the specified Tuple2d.Constructs and initializes a Tuple2d from the specified Tuple2f. -
Method Summary
Modifier and TypeMethodDescriptionfinal void
absolute()
Sets each component of this tuple to its absolute value.final void
Sets each component of the tuple parameter to its absolute value and places the modified values into this tuple.final void
Sets the value of this tuple to the vector sum of itself and tuple t1.final void
Sets the value of this tuple to the vector sum of tuples t1 and t2.final void
clamp
(double min, double max) Clamps this tuple to the range [low, high].final void
Clamps the tuple parameter to the range [low, high] and places the values into this tuple.final void
clampMax
(double max) Clamps the maximum value of this tuple to the max parameter.final void
Clamps the maximum value of the tuple parameter to the max parameter and places the values into this tuple.final void
clampMin
(double min) Clamps the minimum value of this tuple to the min parameter.final void
Clamps the minimum value of the tuple parameter to the min parameter and places the values into this tuple.abstract Object
clone()
boolean
epsilonEquals
(Tuple2d 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
Returns true if the Object o1 is of type Tuple2d and all of the data members of t1 are equal to the corresponding data members in this Tuple2d.boolean
Returns true if all of the data members of Tuple2d t1 are equal to the corresponding data members in thisfinal void
get
(double[] t) Copies the value of the elements of this tuple into the array t[].int
hashCode()
Returns a hash number based on the data values in this object.final void
interpolate
(Tuple2d t1, double alpha) Linearly interpolates between this tuple and tuple t1 and places the result into this tuple: this = (1-alpha)*this + alpha*t1.final void
interpolate
(Tuple2d t1, Tuple2d t2, double alpha) Linearly interpolates between tuples t1 and t2 and places the result into this tuple: this = (1-alpha)*t1 + alpha*t2.final void
negate()
Negates the value of this vector in place.final void
Sets the value of this tuple to the negation of tuple t1.final void
scale
(double s) Sets the value of this tuple to the scalar multiplication of itself.final void
Sets the value of this tuple to the scalar multiplication of tuple t1.final void
Sets the value of this tuple to the scalar multiplication of itself and then adds tuple t1 (this = s*this + t1).final void
Sets the value of this tuple to the scalar multiplication of tuple t1 and then adds tuple t2 (this = s*t1 + t2).final void
set
(double[] t) Sets the value of this tuple from the 2 values specified in the array.final void
set
(double x, double y) Sets the value of this tuple to the specified xy coordinates.final void
Sets the value of this tuple to the value of the Tuple2d argument.final void
Sets the value of this tuple to the value of the Tuple2f argument.final void
Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).final void
Sets the value of this tuple to the vector difference of tuple t1 and t2 (this = t1 - t2).toString()
Returns a string that contains the values of this Tuple2d.
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Field Details
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x
public double xThe x coordinate. -
y
public double yThe y coordinate.
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Constructor Details
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Tuple2d
public Tuple2d(double x, double y) Constructs and initializes a Tuple2d from the specified xy coordinates.- Parameters:
x
- the x coordinatey
- the y coordinate
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Tuple2d
public Tuple2d(double[] t) Constructs and initializes a Tuple2d from the specified array.- Parameters:
t
- the array of length 2 containing xy in order
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Tuple2d
Constructs and initializes a Tuple2d from the specified Tuple2d.- Parameters:
t1
- the Tuple2d containing the initialization x y data
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Tuple2d
Constructs and initializes a Tuple2d from the specified Tuple2f.- Parameters:
t1
- the Tuple2d containing the initialization x y data
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Tuple2d
public Tuple2d()Constructs and initializes a Tuple2d to (0,0).
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Method Details
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set
public final void set(double x, double y) Sets the value of this tuple to the specified xy coordinates.- Parameters:
x
- the x coordinatey
- the y coordinate
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set
public final void set(double[] 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
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set
Sets the value of this tuple to the value of the Tuple2d argument.- Parameters:
t1
- the tuple to be copied
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set
Sets the value of this tuple to the value of the Tuple2f argument.- Parameters:
t1
- the tuple to be copied
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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
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add
Sets the value of this tuple to the vector sum of tuples t1 and t2.- Parameters:
t1
- the first tuplet2
- the second tuple
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add
Sets the value of this tuple to the vector sum of itself and tuple t1.- Parameters:
t1
- the other tuple
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sub
Sets the value of this tuple to the vector difference of tuple t1 and t2 (this = t1 - t2).- Parameters:
t1
- the first tuplet2
- the second tuple
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sub
Sets the value of this tuple to the vector difference of itself and tuple t1 (this = this - t1).- Parameters:
t1
- the other tuple
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negate
Sets the value of this tuple to the negation of tuple t1.- Parameters:
t1
- the source vector
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negate
public final void negate()Negates the value of this vector in place. -
scale
Sets the value of this tuple to the scalar multiplication of tuple t1.- Parameters:
s
- the scalar valuet1
- the source tuple
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scale
public final void scale(double s) Sets the value of this tuple to the scalar multiplication of itself.- Parameters:
s
- the scalar value
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scaleAdd
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 valuet1
- the tuple to be multipledt2
- the tuple to be added
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scaleAdd
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 valuet1
- the tuple to be added
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hashCode
public int hashCode()Returns a hash number based on the data values in this object. Two different Tuple2d objects with identical data values (ie, returns true for equals(Tuple2d) ) will return the same hash number. Two vectors with different data members may return the same hash value, although this is not likely. -
equals
Returns true if all of the data members of Tuple2d t1 are equal to the corresponding data members in this- Parameters:
t1
- the vector with which the comparison is made.
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equals
Returns true if the Object o1 is of type Tuple2d and all of the data members of t1 are equal to the corresponding data members in this Tuple2d. -
epsilonEquals
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 tupleepsilon
- the threshold value
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toString
Returns a string that contains the values of this Tuple2d. The form is (x,y). -
clamp
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 clampingmax
- the highest value in the tuple after clampingt
- the source tuple, which will not be modified
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clampMin
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
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clampMax
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 clampingt
- the source tuple, which will not be modified
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absolute
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
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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 clampingmax
- the highest value in this tuple after clamping
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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
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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
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absolute
public final void absolute()Sets each component of this tuple to its absolute value. -
interpolate
Linearly interpolates between tuples t1 and t2 and places the result into this tuple: this = (1-alpha)*t1 + alpha*t2.- Parameters:
t1
- the first tuplet2
- the second tuplealpha
- the alpha interpolation parameter
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interpolate
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 tuplealpha
- the alpha interpolation parameter
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clone
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