SbVec2f3
The sbvec2f class is a 2 dimensional vector with floating point coordinates.
Usage
#include <Inventor/SbVec2f.h>
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 Symbols
(Note that these are not member symbols.) 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 as well 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) [inline], [explicit]
Constructs an instance from an SbVec2d instance.
Since
Coin 2.5
SbVec2f::SbVec2f (const SbVec2b & v) [inline], [explicit]
Constructs an instance from an SbVec2d instance.
Since
Coin 2.5
SbVec2f::SbVec2f (const SbVec2s & v) [inline], [explicit]
Constructs an instance from an SbVec2d instance.
Since
Coin 2.5
SbVec2f::SbVec2f (const SbVec2i32 & v) [inline], [explicit]
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 whether this is a valid conversion
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.
Releases
8 releases since Debian 3.0 (Woody); the text changed 7 times.