Vector4

Fields

double	`_x`
double	`_y`
double	`_z`
double	`_w`
const Vector4	`ZERO`
const Vector4	`UNIT`
const Vector4	`XAXIS`
const Vector4	`YAXIS`
const Vector4	`ZAXIS`
const Vector4	`UNDEFINED`

Functions

	`SET_CID`
	`Vector4`
	`Vector4`
	`Vector4`
	`Vector4`
	`Vector4`
	`Vector4`
	`Vector4`
	`~Vector4`
double	`operator[]`
double &	`operator[]`
Vector4	`operator+`
Vector4	`operator-`
Vector4	`operator-`
void	`operator+=`
void	`operator-=`
Vector4	`operator*`
Vector4	`operator*`
void	`operator*=`
void	`operator*=`
Vector4	`operator/`
Vector4	`operator/`
void	`operator/=`
void	`operator/=`
bool	`operator==`
bool	`operator!=`
bool	`operator`
double	`GetLength3`
double	`GetLength4`
double	`Normalize3`
double	`Normalize4`
double	`Dot3`
double	`Dot3_Sat`
double	`Dot4`
double	`Dot4_Sat`
Vector4	`Cross3`
void	`Set`
double	`X`
double	`Y`
double	`Z`
double	`W`

Detailed Description

class Vector4 : public RED::Object 

4D vector used for homogeneous geometrical operations.

@related class RED::Vector3, class RED::Matrix

Public Functions

SET_CID (CID_class_REDVector4) IMPLEMENT_AS()

Vector4()

Default constructor.

Constructs a zero vector.

Vector4(double iX, double iY, double iZ, double iW)

Direct assignment construction.

Parameters

iX – X dimension of the vector.
iY – Y dimension of the vector.
iZ – Z dimension of the vector.
iW – W dimension of the vector.

Vector4(double iV)

Direct assignment construction.

Parameters: iV – Value, replicated on the 4 members of the vector.

Vector4(const RED::Color &iSource)

Constructor by copy from a RED::Color.

Parameters: iSource – Color to put into ‘this’.

Vector4(const RED::Vector3 &iSource)

Construction from a non homogeneous vector.

The fourth vector component receive 1.0f.

Parameters: iSource – Three components vector.

Vector4(const float data[4])

construction for a four floats array.

Parameters: data – array containing the four floating-point vector values.

Vector4(const double data[4])

construction for a four double array.

Parameters: data – array containing the four double precision floating-point vector values.

virtual ~Vector4(): Destructor.

inline double operator[](unsigned int iIndex) const

Gets the n-th component of a vector.

Returns: The n-th component of the vector.

inline double &operator[](unsigned int iIndex)

Gets the n-th component of a vector in read-write mode.

Returns: A reference to the n-th component of the vector.

inline RED::Vector4 operator+(const RED::Vector4 &iSource) const

Addition operation.

Builds a new vector by the addition of two others.

Returns: the sum of the two input vectors.

inline RED::Vector4 operator-(const RED::Vector4 &iRight) const

Subtraction operation.

Builds a new vector by the subtraction of two others.

Parameters: iRight – Right operand of the subtraction
Returns: the subtraction of the two input vectors.

inline RED::Vector4 operator-() const

Returns the opposite of the vector.

Returns: -‘this’

inline void operator+=(const RED::Vector4 &iSource)

Increment operation.

Adds the iSource vector to ‘this’.

Parameters: iSource – Added term.

inline void operator-=(const RED::Vector4 &iSource)

Decrement operation.

Subtracts the iSource vector to ‘this’.

Parameters: iSource – Subtracted term.

inline RED::Vector4 operator*(double iScalar) const

Multiplies the components of a vector with a scalar.

Parameters: iScalar – Number to multiply the vector with.
Returns: The product of the vector with the scalar.

inline RED::Vector4 operator*(const RED::Vector4 &iRight) const

Multiplication of members of two vectors.

Builds a new vector whose members are the component wise products of ‘this’ with iRight.

Parameters: iRight – Vector to multiply to this.
Returns: The product of the two vectors.

inline void operator*=(double iScalar)

Multiplies the components of the vector with a scalar.

Parameters: iScalar – Number to multiply the vector with.

inline void operator*=(const RED::Vector4 &iRight)

Multiplication of members of two vectors.

Store in ‘this’ the result of the component wise product of ‘this’ with iRight.

Parameters: iRight – Vector to multiply to this.

inline RED::Vector4 operator/(double iScalar) const

Divides the components of a vector by a scalar.

Parameters: iScalar – Number to divide the vector by.
Returns: The division of the vector by the scalar.

inline RED::Vector4 operator/(const RED::Vector4 &iRight) const

Division of members of two vectors.

Builds a new vector whose members are the component wise division of ‘this’ with iRight.

Parameters: iRight – Vector to divide from this.
Returns: The division of the two vectors.

inline void operator/=(double iScalar)

Divides the components of the vector by a scalar.

Parameters: iScalar – Number to divide the vector by.

inline void operator/=(const RED::Vector4 &iRight)

Division of members of two vectors.

Store in ‘this’ the result of the component wise division of ‘this’ by iRight.

Parameters: iRight – Vector to divide from this.

inline bool operator==(const RED::Vector4 &iOther) const

Returns the result of an equality test between two vectors.

Parameters: iOther – Reference to the vector to test with.
Returns: true if the two vectors are identical, false otherwise.

inline bool operator!=(const RED::Vector4 &iOther) const

Returns the result of a difference test between two vectors.

Parameters: iOther – Reference to the vector to test with.
Returns: true if the two vectors are different, false otherwise.

inline bool operator<(const RED::Vector4 &iOther) const

Returns true if this is lower than iOther, component wise.

Parameters: iOther – Reference to the vector to test with.
Returns: true if this is lower than iOther, false otherwise.

inline double GetLength3() const

Gets the 3 dimensions length of the vector.

Returns: sqrtf(x*x + y*y + z*z).

inline double GetLength4() const

Gets the 4 dimensions length of the vector.

Returns: sqrtf(x*x + y*y + z*z + w*w).

inline double Normalize3()

Normalizes the vector in 3 dimensions.

Calculates the 3 dimensions length of the vector (x*x + y*y + z*z) and divides the 3 dimensions components by this length. The homogeneous term is not modified by the operation.

Returns: The length of the vector before normalization.

inline double Normalize4()

Normalizes the vector in 4 dimensions.

Calculates the 4 dimensions length of the vector (x*x + y*y + z*z + w*w) and divides the 4 dimensions components by this length.

Returns: The length of the vector before normalization.

inline double Dot3(const RED::Vector4 &iV) const

3 dimensions dot product of two vectors.

Parameters: iV – Right operand of the dot product.
Returns: The dot product of the two vectors.

inline double Dot3_Sat(const RED::Vector4 &iV) const

3 dimensions dot product of two vectors, saturated.

The result is clamped to [0,1].

Parameters: iV – Right operand of the dot product.
Returns: The dot product of the two vectors.

inline double Dot4(const RED::Vector4 &iV) const

Homogeneous dot product of two vectors.

Parameters: iV – Right operand of the dot product.
Returns: The dot product of the two vectors.

inline double Dot4_Sat(const RED::Vector4 &iV) const

Homogeneous dot product of two vectors.

The result is clamped to [0,1].

Parameters: iV – Right operand of the dot product.
Returns: The dot product of the two vectors.

inline RED::Vector4 Cross3(const RED::Vector4 &iV) const

Cross product of 2 vectors in 3 dimensions.

Parameters: iV – Cross product right operand.
Returns: The cross product of this with iV.

inline void Set(double iX, double iY, double iZ, double iW)

Sets the four component of a vector.

Parameters

iX – First component.
iY – Second component.
iZ – Third component.
iW – Fourth component.

inline double X() const

Returns: The X dimension of the vector.

inline double Y() const

Returns: The Y dimension of the vector.

inline double Z() const

Returns: The Z dimension of the vector.

inline double W() const

Returns: The W dimension of the vector.

Public Members

double _x: X dimension of the vector.

double _y: Y dimension of the vector.

double _z: Z dimension of the vector.

double _w: W dimension of the vector.

Public Static Attributes

static const RED::Vector4 ZERO: Zero vector.

static const RED::Vector4 UNIT: Unit vector.

static const RED::Vector4 XAXIS: ( 1, 0, 0, 1 ) vector.

static const RED::Vector4 YAXIS: ( 0, 1, 0, 1 ) vector.

static const RED::Vector4 ZAXIS: ( 0, 0, 1, 1 ) vector.

static const RED::Vector4 UNDEFINED: ( FLT_MAX, FLT_MAX, FLT_MAX, FLT_MAX ) vector.