Coin  4.0.3
Coin3D core library
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SbVec2f Class Reference

The SbVec2f class is a 2 dimensional vector with floating point coordinates. More...

#include <Inventor/SbVec2f.h>

Public Member Functions

 SbVec2f (const float v[2])
 
 SbVec2f (const SbVec2b &v)
 
 SbVec2f (const SbVec2d &v)
 
 SbVec2f (const SbVec2i32 &v)
 
 SbVec2f (const SbVec2s &v)
 
 SbVec2f (float x, float y)
 
 SbVec2f (void)
 
float dot (const SbVec2f &v) const
 
SbBool equals (const SbVec2f &v, float tolerance) const
 
SbBool fromString (const SbString &str)
 
void getValue (float &x, float &y) const
 
const float * getValue (void) const
 
float length (void) const
 
void negate (void)
 
float normalize (void)
 
SbVec2foperator*= (float d)
 
SbVec2foperator+= (const SbVec2f &v)
 
SbVec2f operator- (void) const
 
SbVec2foperator-= (const SbVec2f &v)
 
SbVec2foperator/= (float d)
 
float & operator[] (int i)
 
const float & operator[] (int i) const
 
void print (FILE *fp) const
 
SbVec2fsetValue (const float v[2])
 
SbVec2fsetValue (const SbVec2b &v)
 
SbVec2fsetValue (const SbVec2d &v)
 
SbVec2fsetValue (const SbVec2i32 &v)
 
SbVec2fsetValue (const SbVec2s &v)
 
SbVec2fsetValue (float x, float y)
 
float sqrLength (void) const
 
SbString toString () const
 

Protected Attributes

float vec [2]
 

Related Symbols

(Note that these are not member symbols.)

int operator!= (const SbVec2f &v1, const SbVec2f &v2)
 
SbVec2f operator* (const SbVec2f &v, float d)
 
SbVec2f operator* (float d, const SbVec2f &v)
 
SbVec2f operator+ (const SbVec2f &v1, const SbVec2f &v2)
 
SbVec2f operator- (const SbVec2f &v1, const SbVec2f &v2)
 
SbVec2f operator/ (const SbVec2f &v, float d)
 
int operator== (const SbVec2f &v1, const SbVec2f &v2)
 

Detailed Description

The SbVec2f class is a 2 dimensional vector with floating point coordinates.

This vector class is used by many other classes in Coin. It provides storage for a vector in 2 dimensions as well as simple floating point arithmetic operations on this vector.

See also
SbVec2s, SbVec2d, SbVec3s, SbVec3f, SbVec3d, SbVec4f, SbVec4d.

Constructor & Destructor Documentation

◆ SbVec2f() [1/7]

SbVec2f::SbVec2f ( void )
inline

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

◆ SbVec2f() [2/7]

SbVec2f::SbVec2f ( const float v[2])
inline

Constructs an SbVec2f instance with initial values from v.

◆ SbVec2f() [3/7]

SbVec2f::SbVec2f ( float x,
float y )
inline

Constructs an SbVec2f instance with the initial vector endpoints from x and y.

◆ SbVec2f() [4/7]

SbVec2f::SbVec2f ( const SbVec2d & v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5

◆ SbVec2f() [5/7]

SbVec2f::SbVec2f ( const SbVec2b & v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5

◆ SbVec2f() [6/7]

SbVec2f::SbVec2f ( const SbVec2s & v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5

◆ SbVec2f() [7/7]

SbVec2f::SbVec2f ( const SbVec2i32 & v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5

Member Function Documentation

◆ dot()

float SbVec2f::dot ( const SbVec2f & v) const
inline

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

◆ equals()

SbBool SbVec2f::equals ( const SbVec2f & 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.

◆ fromString()

SbBool SbVec2f::fromString ( const SbString & str)

Convert from a string representation, return whether this is a valid conversion

◆ getValue() [1/2]

void SbVec2f::getValue ( float & x,
float & y ) const
inline

Returns the x and y coordinates of the vector.

See also
setValue().

◆ getValue() [2/2]

const float * SbVec2f::getValue ( void ) const
inline

Returns a pointer to an array of two floats containing the x and y coordinates of the vector.

See also
setValue().

◆ length()

float SbVec2f::length ( void ) const

Return length of vector.

◆ negate()

void SbVec2f::negate ( void )
inline

Negate the vector (i.e. point it in the opposite direction).

◆ normalize()

float SbVec2f::normalize ( void )

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

◆ operator*=()

SbVec2f & SbVec2f::operator*= ( float d)
inline

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

◆ operator+=()

SbVec2f & SbVec2f::operator+= ( const SbVec2f & v)
inline

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

◆ operator-()

SbVec2f SbVec2f::operator- ( void ) const
inline

Non-destructive negation operator. Returns a new SbVec2f instance which points in the opposite direction of this vector.

See also
negate().

◆ operator-=()

SbVec2f & SbVec2f::operator-= ( const SbVec2f & v)
inline

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

◆ operator/=()

SbVec2f & SbVec2f::operator/= ( float d)
inline

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

◆ operator[]() [1/2]

float & SbVec2f::operator[] ( int i)
inline

Index operator. Returns modifiable x or y coordinate.

See also
getValue() and setValue().

◆ operator[]() [2/2]

const float & SbVec2f::operator[] ( int i) const
inline

Index operator. Returns x or y coordinate.

See also
getValue().

◆ print()

void SbVec2f::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.

◆ setValue() [1/6]

SbVec2f & SbVec2f::setValue ( const float v[2])
inline

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

See also
getValue().

◆ setValue() [2/6]

SbVec2f & SbVec2f::setValue ( const SbVec2b & v)

Sets the value from an SbVec2b instance.

Since
Coin 2.5

◆ setValue() [3/6]

SbVec2f & SbVec2f::setValue ( const SbVec2d & v)

Sets the value from an SbVec2d instance.

Since
Coin 2.5

◆ setValue() [4/6]

SbVec2f & SbVec2f::setValue ( const SbVec2i32 & v)

Sets the value from an SbVec2i32 instance.

Since
Coin 2.5

◆ setValue() [5/6]

SbVec2f & SbVec2f::setValue ( const SbVec2s & v)

Sets the value from an SbVec2s instance.

Since
Coin 2.5

◆ setValue() [6/6]

SbVec2f & SbVec2f::setValue ( float x,
float y )
inline

Set new x and y coordinates for the vector. Returns reference to self.

See also
getValue().

◆ sqrLength()

float SbVec2f::sqrLength ( void ) const
inline

Returns the square of the length of the vector.

Since
Coin 2.5

◆ toString()

SbString SbVec2f::toString ( ) const

Return a string representation of this object

Friends And Related Symbol Documentation

◆ operator!=()

int operator!= ( const SbVec2f & v1,
const SbVec2f & v2 )
related

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

See also
equals().

◆ operator*() [1/2]

SbVec2f operator* ( const SbVec2f & v,
float d )
related

Returns an SbVec2f instance which is the components of vector v multiplied with d.

◆ operator*() [2/2]

SbVec2f operator* ( float d,
const SbVec2f & v )
related

Returns an SbVec2f instance which is the components of vector v multiplied with d.

◆ operator+()

SbVec2f operator+ ( const SbVec2f & v1,
const SbVec2f & v2 )
related

Returns an SbVec2f instance which is the sum of vectors v1 and v2.

◆ operator-()

SbVec2f operator- ( const SbVec2f & v1,
const SbVec2f & v2 )
related

Returns an SbVec2f instance which is vector v2 subtracted from vector v1.

◆ operator/()

SbVec2f operator/ ( const SbVec2f & v,
float d )
related

Returns an SbVec2f instance which is the components of vector v divided on the scalar factor d.

◆ operator==()

int operator== ( const SbVec2f & v1,
const SbVec2f & v2 )
related

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

See also
equals().

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