--- name: "SbVec2f" section: "3" platform: "linux" package: "coin" version: "1:4.0.10-1" release: "Arch Linux 2026-11-01" platforms: ["linux"] url: "https://new.carta.tech/SbVec2f" --- # SbVec2f(3) The SbVec2f class is a 2 dimensional vector with floating point coordinates. ## NAME SbVec2f - The **SbVec2f** class is a 2 dimensional vector with floating point coordinates. ## SYNOPSIS \#include \ ### 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. ## Friends And Related Symbol 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()**. ## Author Generated automatically by Doxygen for Coin from the source code.