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SbVec4f(3) | Coin | SbVec4f(3) |
NAME¶
SbVec4f - The SbVec4f class is a 4 dimensional vector with floating point coordinates. This vector class is used by many other classes in Coin. It provides storage for a 3 dimensional homogeneoues vector (with the 4 components usually referred to as <x, y, z, w>) aswell as simple floating point arithmetic operations.SYNOPSIS¶
Inherited by SbColor4f.Public Member Functions¶
SbVec4f (void)
Protected Attributes¶
float vec [4]
Related Functions¶
(Note that these are not member functions.)SbVec4f operator* (const SbVec4f &v, float d)
Detailed Description¶
The SbVec4f class is a 4 dimensional vector with floating point coordinates. This vector class is used by many other classes in Coin. It provides storage for a 3 dimensional homogeneoues vector (with the 4 components usually referred to as <x, y, z, w>) aswell as simple floating point arithmetic operations.SbVec2s, SbVec2f,
SbVec2d, SbVec3s, SbVec3f, SbVec3d,
SbVec4d.
Constructor & Destructor Documentation¶
SbVec4f::SbVec4f (void) [inline]¶
The default constructor does nothing. The vector coordinates will be uninitialized until a call the setValue().SbVec4f::SbVec4f (const floatv[4]) [inline]¶
Constructs an SbVec4f instance with initial values from v.SbVec4f::SbVec4f (floatx, floaty, floatz, floatw) [inline]¶
Constructs an SbVec4f instance with the initial homogeneous vector set to <x,y,z,w>.SbVec4f::SbVec4f (const SbVec4d &v) [inline], [explicit]¶
Constructs an SbVec4f instance from an SbVec4d instance.SbVec4f::SbVec4f (const SbVec4b &v) [inline], [explicit]¶
Constructs an SbVec4f instance from an SbVec4b instance. Since:Coin 2.5
SbVec4f::SbVec4f (const SbVec4s &v) [inline], [explicit]¶
Constructs an SbVec4f instance from an SbVec4s instance. Since:Coin 2.5
SbVec4f::SbVec4f (const SbVec4i32 &v) [inline], [explicit]¶
Constructs an SbVec4f instance from an SbVec4i32 instance. Since:Coin 2.5
Member Function Documentation¶
SbVec4f & SbVec4f::setValue (const floatv[4]) [inline]¶
Set new coordinates for the vector from v. Returns reference to self. See Also:getValue().
SbVec4f & SbVec4f::setValue (floatx, floaty, floatz, floatw) [inline]¶
Set new coordinates for the vector. Returns reference to self. See Also:getValue().
SbVec4f & SbVec4f::setValue (const SbVec4d &v)¶
Sets the value from an SbVec4d instance.SbVec4f & SbVec4f::setValue (const SbVec4b &v)¶
Since:Coin 2.5
SbVec4f & SbVec4f::setValue (const SbVec4s &v)¶
Since:Coin 2.5
SbVec4f & SbVec4f::setValue (const SbVec4i32 &v)¶
Since:Coin 2.5
const float * SbVec4f::getValue (void) const [inline]¶
Returns a pointer to an array of four floats containing the x, y, z and w coordinates of the vector. See Also:setValue().
void SbVec4f::getValue (float &x, float &y, float &z, float &w) const [inline]¶
Returns the x, y, z and w coordinates of the vector. See Also:setValue().
float & SbVec4f::operator[] (inti) [inline]¶
Index operator. Returns modifiable x, y, z or w component of vector. See Also:getValue() and setValue().
const float & SbVec4f::operator[] (inti) const [inline]¶
Index operator. Returns x, y, z or w component of vector. See Also:getValue() and setValue().
SbBool SbVec4f::equals (const SbVec4f &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. The comparison is done in 4D-space, i.e. the w component of the vector is not used to make x, y and z into Cartesian coordinates first.float SbVec4f::dot (const SbVec4f &v) const [inline]¶
Calculates and returns the result of taking the dot product of this vector and v.void SbVec4f::getReal (SbVec3f &v) const¶
Returns the vector as a Cartesian 3D vector in v. This means that the 3 first components x, y and z will be divided by the fourth, w.float SbVec4f::length (void) const¶
Return the length of the vector in 4D space.float SbVec4f::sqrLength (void) const [inline]¶
Return the square of the length of the vector in 4D space.void SbVec4f::negate (void) [inline]¶
Negate the vector.float SbVec4f::normalize (void)¶
Normalize the vector to unit length. Return value is the original length of the vector before normalization.SbVec4f & SbVec4f::operator*= (floatd) [inline]¶
Multiply components of vector with value d. Returns reference to self. Reimplemented in SbColor4f.SbVec4f & SbVec4f::operator/= (floatd) [inline]¶
Divides components of vector with value d. Returns reference to self. Reimplemented in SbColor4f.SbVec4f & SbVec4f::operator+= (const SbVec4f &v) [inline]¶
Adds this vector and vector v. Returns reference to self.SbVec4f & SbVec4f::operator-= (const SbVec4f &v) [inline]¶
Subtracts vector v from this vector. Returns reference to self.SbVec4f SbVec4f::operator- (void) const [inline]¶
Non-destructive negation operator. Returns a new SbVec4f instance which has all components negated. See Also:negate().
void SbVec4f::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¶
SbVec4f operator* (const SbVec4f &v, floatd) [related]¶
Returns an SbVec4f instance which is the components of vector v multiplied with d.SbVec4f operator* (floatd, const SbVec4f &v) [related]¶
Returns an SbVec4f instance which is the components of vector v multiplied with d.SbVec4f operator/ (const SbVec4f &v, floatd) [related]¶
Returns an SbVec4f instance which is the components of vector v divided on the scalar factor d.SbVec4f operator+ (const SbVec4f &v1, const SbVec4f &v2) [related]¶
Returns an SbVec4f instance which is the sum of vectors v1 and v2.SbVec4f operator- (const SbVec4f &v1, const SbVec4f &v2) [related]¶
Returns an SbVec4f instance which is vector v2 subtracted from vector v1.int operator== (const SbVec4f &v1, const SbVec4f &v2) [related]¶
Returns 1 if v1 and v2 are equal, 0 otherwise. See Also:equals().
int operator!= (const SbVec4f &v1, const SbVec4f &v2) [related]¶
Returns 1 if v1 and v2 are not equal, 0 if they are equal. See Also:equals().
Author¶
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