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SbVec2f Class Reference
Base Classes

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 aswell as simple floating point arithmetic operations on this vector. More...

Public Member Functions

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

Protected Attributes

float vec [2]
 

Related Functions

(Note that these are not member functions.)

SbVec2f operator* (const SbVec2f &v, float d)
 
SbVec2f operator* (float d, const SbVec2f &v)
 
SbVec2f operator/ (const SbVec2f &v, float d)
 
SbVec2f operator+ (const SbVec2f &v1, const SbVec2f &v2)
 
SbVec2f operator- (const SbVec2f &v1, const SbVec2f &v2)
 
int operator== (const SbVec2f &v1, const SbVec2f &v2)
 
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 aswell as simple floating point arithmetic operations on this vector.

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

Constructor & Destructor Documentation

SbVec2f::SbVec2f ( void  )
inline

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

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

Constructs an SbVec2f instance with initial values from v.

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

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

SbVec2f::SbVec2f ( const SbVec2d &  v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5
SbVec2f::SbVec2f ( const SbVec2b &  v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5
SbVec2f::SbVec2f ( const SbVec2s &  v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5
SbVec2f::SbVec2f ( const SbVec2i32 &  v)
inlineexplicit

Constructs an instance from an SbVec2d instance.

Since
Coin 2.5

Member Function Documentation

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

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

See also
getValue().
SbVec2f & SbVec2f::setValue ( const SbVec2d &  v)

Sets the value from an SbVec2d instance.

Since
Coin 2.5
SbVec2f & SbVec2f::setValue ( const SbVec2b &  v)

Sets the value from an SbVec2b instance.

Since
Coin 2.5
SbVec2f & SbVec2f::setValue ( const SbVec2s &  v)

Sets the value from an SbVec2s instance.

Since
Coin 2.5
SbVec2f & SbVec2f::setValue ( const SbVec2i32 &  v)

Sets the value from an SbVec2i32 instance.

Since
Coin 2.5
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().
void SbVec2f::getValue ( float &  x,
float &  y 
) const
inline

Returns the x and y coordinates of the vector.

See also
setValue().
float & SbVec2f::operator[] ( int  i)
inline

Index operator. Returns modifiable x or y coordinate.

See also
getValue() and setValue().
const float & SbVec2f::operator[] ( int  i) const
inline

Index operator. Returns x or y coordinate.

See also
getValue().
float SbVec2f::dot ( const SbVec2f &  v) const
inline

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

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.

float SbVec2f::length ( void  ) const

Return length of vector.

float SbVec2f::sqrLength ( void  ) const
inline

Returns the square of the length of the vector.

Since
Coin 2.5
void SbVec2f::negate ( void  )
inline

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

float SbVec2f::normalize ( void  )

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

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

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

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

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

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

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

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

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

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().
SbString SbVec2f::toString ( ) const

Return a string representation of this object

SbBool SbVec2f::fromString ( const SbString &  str)

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

void SbVec2f::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

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

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

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

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

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.

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

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

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

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

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

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

See also
equals().
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().
The documentation for this class was generated from the following files:

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