SbVec4d Class Reference

The SbVec4d class is a 4 dimensional vector with double precision floating point coordinates.This vector class is not by many other classes in Coin. It provides storage for a 3 dimensional homogeneoues vector (with the 4 components usually referred to as <x, y, z, w>) aswell as simple double precision floating point arithmetic operations. More...

#include <Inventor/SbVec4d.h>

Public Member Functions
	SbVec4d (void)
	SbVec4d (const double v[4])
	SbVec4d (double x, double y, double z, double w)
	SbVec4d (const SbVec4f &v)
	SbVec4d (const SbVec4b &v)
	SbVec4d (const SbVec4s &v)
	SbVec4d (const SbVec4i32 &v)
SbVec4d &	setValue (const double v[4])
SbVec4d &	setValue (double x, double y, double z, double w)
SbVec4d &	setValue (const SbVec4f &v)
SbVec4d &	setValue (const SbVec4b &v)
SbVec4d &	setValue (const SbVec4s &v)
SbVec4d &	setValue (const SbVec4i32 &v)
const double *	getValue (void) const
void	getValue (double &x, double &y, double &z, double &w) const
double &	operator[] (int i)
const double &	operator[] (int i) const
double	dot (const SbVec4d &v) const
SbBool	equals (const SbVec4d &v, double tolerance) const
void	getReal (SbVec3d &v) const
double	length (void) const
double	sqrLength (void) const
void	negate (void)
double	normalize (void)
SbVec4d &	operator*= (double d)
SbVec4d &	operator/= (double d)
SbVec4d &	operator+= (const SbVec4d &v)
SbVec4d &	operator-= (const SbVec4d &v)
SbVec4d	operator- (void) const
void	print (FILE *fp) const

Protected Attributes
double	vec [4]

Related Functions
(Note that these are not member functions.)
SbVec4d	operator* (const SbVec4d &v, double d)
SbVec4d	operator* (double d, const SbVec4d &v)
SbVec4d	operator/ (const SbVec4d &v, double d)
SbVec4d	operator+ (const SbVec4d &v1, const SbVec4d &v2)
SbVec4d	operator- (const SbVec4d &v1, const SbVec4d &v2)
int	operator== (const SbVec4d &v1, const SbVec4d &v2)
int	operator!= (const SbVec4d &v1, const SbVec4d &v2)

Detailed Description

The SbVec4d class is a 4 dimensional vector with double precision floating point coordinates.

This vector class is not by many other classes in Coin. It provides storage for a 3 dimensional homogeneoues vector (with the 4 components usually referred to as <x, y, z, w>) aswell as simple double precision floating point arithmetic operations.

See also

SbVec2s, SbVec2f, SbVec2d, SbVec3s, SbVec3f, SbVec3d, SbVec4f.

Constructor & Destructor Documentation

SbVec4d::SbVec4d ( void  )

inline

The default constructor does nothing. The vector coordinates will be uninitialized until a call the setValue().

SbVec4d::SbVec4d ( const double  v[4] )

inline

Constructs an SbVec4d instance with initial values from v.

SbVec4d::SbVec4d ( double  x, double  y, double  z, double  w  )

inline

Constructs an SbVec4d instance with the initial homogeneous vector set to <x,y,z,w>.

SbVec4d::SbVec4d ( const SbVec4f &  v )

inlineexplicit

Constructs an SbVec4d instance from an SbVec4f instance.

SbVec4d::SbVec4d ( const SbVec4b &  v )

inlineexplicit

Constructs an SbVec4d instance from an SbVec4b instance.

Since

Coin 2.5

SbVec4d::SbVec4d ( const SbVec4s &  v )

inlineexplicit

Constructs an SbVec4d instance from an SbVec4s instance.

Since

Coin 2.5

SbVec4d::SbVec4d ( const SbVec4i32 &  v )

inlineexplicit

Constructs an SbVec4d instance from an SbVec4i32 instance.

Since

Coin 2.5

Member Function Documentation

SbVec4d & SbVec4d::setValue ( const double  v[4] )

inline

Set new coordinates for the vector from v. Returns reference to self.

See also

getValue().

SbVec4d & SbVec4d::setValue ( double  x, double  y, double  z, double  w  )

inline

Set new coordinates for the vector. Returns reference to self.

See also

getValue().

SbVec4d & SbVec4d::setValue

(

const SbVec4f &

v

)

Since

Coin 2.5

SbVec4d & SbVec4d::setValue

(

const SbVec4b &

v

)

Since

Coin 2.5

SbVec4d & SbVec4d::setValue

(

const SbVec4s &

v

)

Since

Coin 2.5

SbVec4d & SbVec4d::setValue

(

const SbVec4i32 &

v

)

Since

Coin 2.5

const double * SbVec4d::getValue ( void  ) const

inline

Returns a pointer to an array of four doubles containing the x, y, z and w coordinates of the vector.

See also

setValue().

void SbVec4d::getValue ( double &  x, double &  y, double &  z, double &  w  ) const

inline

Returns the x, y, z and w coordinates of the vector.

See also

setValue().

double & SbVec4d::operator[] ( int  i )

inline

Index operator. Returns modifiable x, y, z or w component of vector.

See also

getValue() and setValue().

const double & SbVec4d::operator[] ( int  i ) const

inline

Index operator. Returns x, y, z or w component of vector.

See also

getValue() and setValue().

double SbVec4d::dot ( const SbVec4d &  v ) const

inline

Calculates and returns the result of taking the dot product of this vector and v.

SbBool SbVec4d::equals	(	const SbVec4d &	v,
		double	tolerance
	)		const

Compares the vector with v and returns TRUE if the distance between the vectors is smaller or equal to the square root of tolerance.

The comparison is done in 4D-space, i.e. the w component of the vector is not used to make x, y and z into Cartesian coordinates first.

void SbVec4d::getReal

(

SbVec3d &

v

)

const

Returns the vector as a Cartesian 3D vector in v. This means that the 3 first components x, y and z will be divided by the fourth, w.

double SbVec4d::length

(

void

)

const

Return the length of the vector in 4D space.

double SbVec4d::sqrLength ( void  ) const

inline

Return the square of the length of the vector in 4D space.

void SbVec4d::negate ( void  )

inline

Negate the vector.

double SbVec4d::normalize

(

void

)

Normalize the vector to unit length. Return value is the original length of the vector before normalization.

SbVec4d & SbVec4d::operator*= ( double  d )

inline

Multiply components of vector with value d. Returns reference to self.

SbVec4d & SbVec4d::operator+= ( const SbVec4d &  v )

inline

SbVec4d & SbVec4d::operator /= (double d)

Divides components of vector with value d. Returns reference to self.

Adds this vector and vector v. Returns reference to self.

SbVec4d & SbVec4d::operator-= ( const SbVec4d &  v )

inline

Subtracts vector v from this vector. Returns reference to self.

SbVec4d SbVec4d::operator- ( void  ) const

inline

Non-destructive negation operator. Returns a new SbVec4d instance which has all components negated.

See also

negate().

void SbVec4d::print

(

FILE *

fp

)

const

Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.

Friends And Related Function Documentation

SbVec4d operator* ( const SbVec4d &  v, double  d  )

related

Returns an SbVec4d instance which is the components of vector v multiplied with d.

SbVec4d operator* ( double  d, const SbVec4d &  v  )

related

Returns an SbVec4d instance which is the components of vector v multiplied with d.

SbVec4d operator/ ( const SbVec4d &  v, double  d  )

related

Returns an SbVec4d instance which is the components of vector v divided on the scalar factor d.

SbVec4d operator+ ( const SbVec4d &  v1, const SbVec4d &  v2  )

related

Returns an SbVec4d instance which is the sum of vectors v1 and v2.

SbVec4d operator- ( const SbVec4d &  v1, const SbVec4d &  v2  )

related

Returns an SbVec4d instance which is vector v2 subtracted from vector v1.

int operator== ( const SbVec4d &  v1, const SbVec4d &  v2  )

related

Returns 1 if v1 and v2 are equal, 0 otherwise.

See also

equals().

int operator!= ( const SbVec4d &  v1, const SbVec4d &  v2  )

related

Returns 1 if v1 and v2 are not equal, 0 if they are equal.

See also

equals().

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The documentation for this class was generated from the following files:

• SbVec4d.h
• SbVec4d.cpp