java.lang.Object
- com.jogamp.opengl.math.Vec4f

```
public final class Vec4f
extends Object
```
4D Vector based upon four float components. Implementation borrowed from [gfxbox2](https://jausoft.com/cgit/cs_class/gfxbox2.git/tree/include/pixel/pixel3f.hpp#n29) and its data layout from JOAL's Vec3f.

Constructor Summary

Constructors
Constructor	Description
`Vec4f()`
`Vec4f(float[] xyzw)`
`Vec4f(float x, float y, float z, float w)`
`Vec4f(Vec3f o, float w)`	Creating new Vec4f using { o, w }.
`Vec4f(Vec4f o)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Vec4f`	`add(float dx, float dy, float dz, float dw)`	this = this + { dx, dy, dz, dw }, returns this.
`Vec4f`	`add(Vec4f b)`	this = this + b, returns this.
`float`	`angle(Vec4f o)`	Return the angle between two vectors in radians
`Vec4f`	`copy()`
`float`	`cosAngle(Vec4f o)`	Return the cosines of the angle between two vectors
`float`	`dist(Vec4f o)`	Return the distance between this vector and the given one.
`float`	`distSq(Vec4f o)`	Return the squared distance between this vector and the given one.
`float`	`dot(Vec4f o)`	Return the dot product of this vector and the given one
`boolean`	`equals(Object o)`
`float[]`	`get(float[] xyzw)`	xyzw = this, returns xyzw.
`float`	`get(int i)`	Gets the ith component, 0 <= i < 4
`boolean`	`isEqual(Vec4f o)`	Equals check using `FloatUtil.EPSILON` value and `FloatUtil.isEqual(float, float, float)`.
`boolean`	`isEqual(Vec4f o, float epsilon)`	Equals check using a given `FloatUtil.EPSILON` value and `FloatUtil.isEqual(float, float, float)`.
`boolean`	`isZero()`	Return true if all components are zero, i.e.
`float`	`length()`	Return the length of this vector, a.k.a the norm or magnitude
`float`	`lengthSq()`	Return the squared length of this vector, a.k.a the squared norm or squared magnitude
`Vec4f`	`max(Vec4f m)`	this = max(this, m), returns this.
`Vec4f`	`min(Vec4f m)`	this = min(this, m), returns this.
`Vec4f`	`minus(Vec4f arg)`	Returns this - arg; creates new vector
`Vec4f`	`minus(Vec4f a, Vec4f b)`	this = a - b, returns this.
`Vec4f`	`mul(float val)`	Returns this * val; creates new vector
`Vec4f`	`mul(Vec4f a, Vec4f b)`	this = a * b, returns this.
`Vec4f`	`normalize()`	Normalize this vector in place
`Vec4f`	`plus(Vec4f arg)`	Returns this + arg; creates new vector
`Vec4f`	`plus(Vec4f a, Vec4f b)`	this = a + b, returns this.
`Vec4f`	`scale(float s)`	this = this * s, returns this.
`Vec4f`	`scale(float sx, float sy, float sz, float sw)`	this = this * { sx, sy, sz, sw }, returns this.
`Vec4f`	`set(float[] xyzw)`	this = xyzw, returns this.
`Vec4f`	`set(float x, float y, float z, float w)`	this = { x, y, z, w }, returns this.
`void`	`set(int i, float val)`	Sets the ith component, 0 <= i < 4
`Vec4f`	`set(Vec3f o, float w)`	this = { o, w }, returns this.
`Vec4f`	`set(Vec4f o)`	this = o, returns this.
`void`	`setW(float w)`
`void`	`setX(float x)`
`void`	`setY(float y)`
`void`	`setZ(float z)`
`Vec4f`	`sub(Vec4f b)`	this = this - b, returns this.
`String`	`toString()`
`float`	`w()`
`float`	`x()`
`float`	`y()`
`float`	`z()`

Methods inherited from class java.lang.Object
getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Vec4f
```
public Vec4f()
```
  - Vec4f
```
public Vec4f(Vec4f o)
```
  - Vec4f
```
public Vec4f(Vec3f o,
             float w)
```
    Creating new Vec4f using { o, w }.
  - Vec4f
```
public Vec4f(float[] xyzw)
```
  - Vec4f
```
public Vec4f(float x,
             float y,
             float z,
             float w)
```
- Method Detail
  - copy
```
public Vec4f copy()
```
  - set
```
public Vec4f set(Vec4f o)
```
    this = o, returns this.
  - set
```
public Vec4f set(Vec3f o,
                 float w)
```
    this = { o, w }, returns this.
  - set
```
public Vec4f set(float x,
                 float y,
                 float z,
                 float w)
```
    this = { x, y, z, w }, returns this.
  - set
```
public Vec4f set(float[] xyzw)
```
    this = xyzw, returns this.
  - set
```
public void set(int i,
                float val)
```
    Sets the ith component, 0 <= i < 4
  - get
```
public float[] get(float[] xyzw)
```
    xyzw = this, returns xyzw.
  - get
```
public float get(int i)
```
    Gets the ith component, 0 <= i < 4
  - x
```
public float x()
```
  - y
```
public float y()
```
  - z
```
public float z()
```
  - w
```
public float w()
```
  - setX
```
public void setX(float x)
```
  - setY
```
public void setY(float y)
```
  - setZ
```
public void setZ(float z)
```
  - setW
```
public void setW(float w)
```
  - max
```
public Vec4f max(Vec4f m)
```
    this = max(this, m), returns this.
  - min
```
public Vec4f min(Vec4f m)
```
    this = min(this, m), returns this.
  - mul
```
public Vec4f mul(float val)
```
    Returns this * val; creates new vector
  - mul
```
public Vec4f mul(Vec4f a,
                 Vec4f b)
```
    this = a * b, returns this.
  - scale
```
public Vec4f scale(float s)
```
    this = this * s, returns this.
  - scale
```
public Vec4f scale(float sx,
                   float sy,
                   float sz,
                   float sw)
```
    this = this * { sx, sy, sz, sw }, returns this.
  - plus
```
public Vec4f plus(Vec4f arg)
```
    Returns this + arg; creates new vector
  - plus
```
public Vec4f plus(Vec4f a,
                  Vec4f b)
```
    this = a + b, returns this.
  - add
```
public Vec4f add(float dx,
                 float dy,
                 float dz,
                 float dw)
```
    this = this + { dx, dy, dz, dw }, returns this.
  - add
```
public Vec4f add(Vec4f b)
```
    this = this + b, returns this.
  - minus
```
public Vec4f minus(Vec4f arg)
```
    Returns this - arg; creates new vector
  - minus
```
public Vec4f minus(Vec4f a,
                   Vec4f b)
```
    this = a - b, returns this.
  - sub
```
public Vec4f sub(Vec4f b)
```
    this = this - b, returns this.
  - isZero
```
public boolean isZero()
```
    Return true if all components are zero, i.e. it's absolute value < #EPSILON.
  - length
```
public float length()
```
    Return the length of this vector, a.k.a the norm or magnitude
  - lengthSq
```
public float lengthSq()
```
    Return the squared length of this vector, a.k.a the squared norm or squared magnitude
  - normalize
```
public Vec4f normalize()
```
    Normalize this vector in place
  - distSq
```
public float distSq(Vec4f o)
```
    Return the squared distance between this vector and the given one.
    When comparing the relative distance between two points it is usually sufficient to compare the squared distances, thus avoiding an expensive square root operation.
  - dist
```
public float dist(Vec4f o)
```
    Return the distance between this vector and the given one.
  - dot
```
public float dot(Vec4f o)
```
    Return the dot product of this vector and the given one
    
    Returns:
    
    the dot product as float
  - cosAngle
```
public float cosAngle(Vec4f o)
```
    Return the cosines of the angle between two vectors
  - angle
```
public float angle(Vec4f o)
```
    Return the angle between two vectors in radians
  - isEqual
```
public boolean isEqual(Vec4f o,
                       float epsilon)
```
    Equals check using a given FloatUtil.EPSILON value and FloatUtil.isEqual(float, float, float).
    Implementation considers following corner cases:
    
    NaN == NaN
    
    +Inf == +Inf
    
    -Inf == -Inf
    Parameters:
    
    o - comparison value
    
    epsilon - consider using FloatUtil.EPSILON
    
    Returns:
    
    true if all components differ less than epsilon, otherwise false.
  - isEqual
```
public boolean isEqual(Vec4f o)
```
    Equals check using FloatUtil.EPSILON value and FloatUtil.isEqual(float, float, float).
    Implementation considers following corner cases:
    
    NaN == NaN
    
    +Inf == +Inf
    
    -Inf == -Inf
    Parameters:
    
    o - comparison value
    
    Returns:
    
    true if all components differ less than FloatUtil.EPSILON, otherwise false.
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Vec4f

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Vec4f

Vec4f

Vec4f

Vec4f

Vec4f

Method Detail

copy

set

set

set

set

set

get

get

x

y

z

w

setX

setY

setZ

setW

max

min

mul

mul

scale

scale

plus

plus

add

add

minus

minus

sub

isZero

length

lengthSq

normalize

distSq

dist

dot

cosAngle

angle

isEqual

isEqual

equals

toString