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- jessie 3.1.4~abc9f50-7
SbVec2f(3) | Coin | SbVec2f(3) |
NAME¶
SbVec2f - 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.SYNOPSIS¶
Public Member Functions¶
SbVec2f (void)
Protected Attributes¶
float vec [2]
Related Functions¶
(Note that these are not member functions.)SbVec2f operator* (const SbVec2f &v, float d)
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 floatv[2]) [inline]¶
Constructs an SbVec2f instance with initial values from v.SbVec2f::SbVec2f (floatx, floaty) [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 floatv[2]) [inline]¶
Set new x and y coordinates for the vector from v. Returns reference to self. See also:getValue().
SbVec2f & SbVec2f::setValue (floatx, floaty) [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[] (inti) [inline]¶
Index operator. Returns modifiable x or y coordinate. See also:getValue() and setValue().
const float & SbVec2f::operator[] (inti) 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, floattolerance) 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*= (floatd) [inline]¶
Multiply components of vector with value d. Returns reference to self.SbVec2f & SbVec2f::operator/= (floatd) [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 objectSbBool SbVec2f::fromString (const SbString &str)¶
Convert from a string representation, return wether this is a valid conversionvoid 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, floatd) [related]¶
Returns an SbVec2f instance which is the components of vector v multiplied with d.SbVec2f operator* (floatd, const SbVec2f &v) [related]¶
Returns an SbVec2f instance which is the components of vector v multiplied with d.SbVec2f operator/ (const SbVec2f &v, floatd) [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¶
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