SbVec4f3
The sbvec4f class is a 4 dimensional vector with floating point coordinates.
Usage
#include <Inventor/SbVec4f.h>
Inherited by SbColor4f.
Public Member Functions
SbVec4f (void)
SbVec4f (const float v[4])
SbVec4f (float x, float y, float z, float w)
SbVec4f (const SbVec4d &v)
SbVec4f (const SbVec4b &v)
SbVec4f (const SbVec4s &v)
SbVec4f (const SbVec4i32 &v)
SbVec4f & setValue (const float v[4])
SbVec4f & setValue (float x, float y, float z, float w)
SbVec4f & setValue (const SbVec4d &v)
SbVec4f & setValue (const SbVec4b &v)
SbVec4f & setValue (const SbVec4s &v)
SbVec4f & setValue (const SbVec4i32 &v)
const float * getValue (void) const
void getValue (float &x, float &y, float &z, float &w) const
float & operator[] (int i)
const float & operator[] (int i) const
SbBool equals (const SbVec4f &v, float tolerance) const
float dot (const SbVec4f &v) const
void getReal (SbVec3f &v) const
float length (void) const
float sqrLength (void) const
void negate (void)
float normalize (void)
SbVec4f & operator*= (float d)
SbVec4f & operator/= (float d)
SbVec4f & operator+= (const SbVec4f &v)
SbVec4f & operator-= (const SbVec4f &v)
SbVec4f operator- (void) const
void print (FILE *fp) const
Protected Attributes
float vec [4]
Related Symbols
(Note that these are not member symbols.) SbVec4f operator* (const SbVec4f &v, float d)
SbVec4f operator* (float d, const SbVec4f &v)
SbVec4f operator/ (const SbVec4f &v, float d)
SbVec4f operator+ (const SbVec4f &v1, const SbVec4f &v2)
SbVec4f operator- (const SbVec4f &v1, const SbVec4f &v2)
int operator== (const SbVec4f &v1, const SbVec4f &v2)
int operator!= (const SbVec4f &v1, const SbVec4f &v2)
Detailed Description
The SbVec4f class is a 4 dimensional vector with floating point coordinates.
This vector class is used by many other classes in Coin. It provides storage for a 3 dimensional homogeneous vector (with the 4 components usually referred to as <x, y, z, w>) as well as simple floating point arithmetic operations.
See also
SbVec2s, SbVec2f, SbVec2d, SbVec3s, SbVec3f, SbVec3d, SbVec4d.
Constructor & Destructor Documentation
SbVec4f::SbVec4f (void ) [inline]
The default constructor does nothing. The vector coordinates will be uninitialized until a call the setValue().
SbVec4f::SbVec4f (const float v[4]) [inline]
Constructs an SbVec4f instance with initial values from v.
SbVec4f::SbVec4f (float x, float y, float z, float w) [inline]
Constructs an SbVec4f instance with the initial homogeneous vector set to <x,y,z,w>.
SbVec4f::SbVec4f (const SbVec4d & v) [inline], [explicit]
Constructs an SbVec4f instance from an SbVec4d instance.
SbVec4f::SbVec4f (const SbVec4b & v) [inline], [explicit]
Constructs an SbVec4f instance from an SbVec4b instance.
Since
Coin 2.5
SbVec4f::SbVec4f (const SbVec4s & v) [inline], [explicit]
Constructs an SbVec4f instance from an SbVec4s instance.
Since
Coin 2.5
SbVec4f::SbVec4f (const SbVec4i32 & v) [inline], [explicit]
Constructs an SbVec4f instance from an SbVec4i32 instance.
Since
Coin 2.5
Member Function Documentation
SbVec4f & SbVec4f::setValue (const float v[4]) [inline]
Set new coordinates for the vector from v. Returns reference to self.
See also
getValue().
SbVec4f & SbVec4f::setValue (float x, float y, float z, float w) [inline]
Set new coordinates for the vector. Returns reference to self.
See also
getValue().
SbVec4f & SbVec4f::setValue (const SbVec4d & v)
Sets the value from an SbVec4d instance.
SbVec4f & SbVec4f::setValue (const SbVec4b & v)
Since
Coin 2.5
SbVec4f & SbVec4f::setValue (const SbVec4s & v)
Since
Coin 2.5
SbVec4f & SbVec4f::setValue (const SbVec4i32 & v)
Since
Coin 2.5
const float * SbVec4f::getValue (void ) const [inline]
Returns a pointer to an array of four floats containing the x, y, z and w coordinates of the vector.
See also
setValue().
void SbVec4f::getValue (float & x, float & y, float & z, float & w) const [inline]
Returns the x, y, z and w coordinates of the vector.
See also
setValue().
float & SbVec4f::operator[] (int i) [inline]
Index operator. Returns modifiable x, y, z or w component of vector.
See also
getValue() and setValue().
const float & SbVec4f::operator[] (int i) const [inline]
Index operator. Returns x, y, z or w component of vector.
See also
getValue() and setValue().
SbBool SbVec4f::equals (const SbVec4f & v, float 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.
float SbVec4f::dot (const SbVec4f & v) const [inline]
Calculates and returns the result of taking the dot product of this vector and v.
void SbVec4f::getReal (SbVec3f & 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.
float SbVec4f::length (void ) const
Return the length of the vector in 4D space.
float SbVec4f::sqrLength (void ) const [inline]
Return the square of the length of the vector in 4D space.
void SbVec4f::negate (void ) [inline]
Negate the vector.
float SbVec4f::normalize (void )
Normalize the vector to unit length. Return value is the original length of the vector before normalization.
SbVec4f & SbVec4f::operator*= (float d) [inline]
Multiply components of vector with value d. Returns reference to self.
SbVec4f & SbVec4f::operator/= (float d) [inline]
Divides components of vector with value d. Returns reference to self.
SbVec4f & SbVec4f::operator+= (const SbVec4f & v) [inline]
Adds this vector and vector v. Returns reference to self.
SbVec4f & SbVec4f::operator-= (const SbVec4f & v) [inline]
Subtracts vector v from this vector. Returns reference to self.
SbVec4f SbVec4f::operator- (void ) const [inline]
Non-destructive negation operator. Returns a new SbVec4f instance which has all components negated.
See also
negate().
void SbVec4f::print (FILE * fp) const
Dump the state of this object to the fp file stream. Only works in debug version of library, method does nothing in an optimized build.
Releases
8 releases since Debian 3.0 (Woody); the text changed 7 times.