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SbVec4f(3IV)()							SbVec4f(3IV)()

NAME
       SbVec4f -- 4D vector class

INHERITS FROM
       SbVec4f

SYNOPSIS
       #include	<Inventor/SbLinear.h>

	  Methods from class SbVec4f:

			 SbVec4f()
			 SbVec4f(const float v[4])
			 SbVec4f(float x, float	y, float z, float w)
     float		 dot(const SbVec4f &v) const
     SbBool		 equals(const SbVec4f v, float tolerance) const
     void		 getReal(SbVec3f &v) const
     const float *	 getValue() const
     void		 getValue(float	 &x,  float  &y,  float	 &z, float &w)
			      const
     float		 length() const
     void		 negate()
			 normalize()
     SbVec4f &		 setValue(const	float v[4])
     SbVec4f &		 setValue(float	x, float y, float z, float w)
     float &		 operator [](int i)
     const float &	 operator [](int i)
     SbVec4f &		 operator *=(float d)
     SbVec4f &		 operator /=(float d)
     SbVec4f &		 operator +=(const SbVec4f &u)
     SbVec4f &		 operator -=(const SbVec4f &u)
     SbVec4f		 operator -() const
     SbVec4f		 operator *(const SbVec4f &v, float d)
     SbVec4f		 operator *(float d, const SbVec4f &v)
     SbVec4f		 operator /(const SbVec4f &v, float d)
     SbVec4f		 operator +(const SbVec4f &v1, const SbVec4f &v2)
     SbVec4f		 operator -(const SbVec4f &v1, const SbVec4f &v2)
     int		 operator ==(const SbVec4f &v1,	const SbVec4f &v2)
     int		 operator !=(const SbVec4f &v1,	const SbVec4f &v2)

DESCRIPTION
       4D vector class used to store homogeneous coordinates.  This  class  is
       used in Inventor	for arguments and return values.

METHODS
			 SbVec4f()
	  Default constructor.

			 SbVec4f(const float v[4])
			 SbVec4f(float x, float	y, float z, float w)
	  Constructor given vector components.

     float		 dot(const SbVec4f &v) const
	  Returns dot (inner) product of vector	and another vector.

     SbBool		 equals(const SbVec4f v, float tolerance) const
	  Equality  comparison	within	given  tolerance  -- the square	of the
	  length of the	maximum	distance between the two vectors.

     void		 getReal(SbVec3f &v) const
	  Returns the real portion of the vector by  dividing  by  the	fourth
	  value.

     const float *	 getValue() const
     void		 getValue(float	 &x,  float  &y,  float	 &z, float &w)
			      const
	  Returns vector components.

     float		 length() const
	  Returns geometric length of vector.

     void		 negate()
	  Negates each component of vector in place.

			 normalize()
	  Changes vector to be unit length.

     SbVec4f &		 setValue(const	float v[4])
     SbVec4f &		 setValue(float	x, float y, float z, float w)
	  Sets the vector components.

     float &		 operator [](int i)
     const float &	 operator [](int i)
	  Accesses indexed component of	vector.

     SbVec4f &		 operator *=(float d)
     SbVec4f &		 operator /=(float d)
	  Component-wise scalar	multiplication and division operators.

     SbVec4f &		 operator +=(const SbVec4f &u)
     SbVec4f &		 operator -=(const SbVec4f &u)
	  Component-wise vector	addition and subtraction operators.

     SbVec4f		 operator -() const
	  Nondestructive unary negation	-- returns a new vector.

     SbVec4f		 operator *(const SbVec4f &v, float d)
     SbVec4f		 operator *(float d, const SbVec4f &v)
     SbVec4f		 operator /(const SbVec4f &v, float d)
	  Component-wise binary	scalar multiplication and division operators.

     SbVec4f		 operator +(const SbVec4f &v1, const SbVec4f &v2)
     SbVec4f		 operator -(const SbVec4f &v1, const SbVec4f &v2)
	  Component-wise binary	vector addition	and subtraction	operators.

     int		 operator ==(const SbVec4f &v1,	const SbVec4f &v2)
     int		 operator !=(const SbVec4f &v1,	const SbVec4f &v2)
	  Equality comparison operators.

FILE FORMAT/DEFAULTS
SEE ALSO
       SbVec2f,	SbVec3f, SbVec2s, SbRotation

								SbVec4f(3IV)()

NAME | INHERITS FROM | SYNOPSIS | DESCRIPTION | METHODS | FILE FORMAT/DEFAULTS | SEE ALSO

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