SbVec4d.3coin3 man page

SbVec4d — 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.

Synopsis

#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]

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) [inline], [explicit]

Constructs an SbVec4d instance from an SbVec4f instance.

SbVec4d::SbVec4d (const SbVec4b & v) [inline], [explicit]

Constructs an SbVec4d instance from an SbVec4b instance.

Since:

Coin 2.5

SbVec4d::SbVec4d (const SbVec4s & v) [inline], [explicit]

Constructs an SbVec4d instance from an SbVec4s instance.

Since:

Coin 2.5

SbVec4d::SbVec4d (const SbVec4i32 & v) [inline], [explicit]

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.

Author

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Referenced By

SbVec4d.3coin2(3) is an alias of SbVec4d.3coin3(3).

Mon Sep 5 2016 Version 3.1.3 Coin