SbVec2f — 2D vector class

       2D vector class used to store 2D vectors and points. This class is used throughout Inventor for arguments
       and return values.

       SbVec2f

SbVec2f()
          Default constructor.

                         SbVec2f(constfloatv[2])SbVec2f(floatx,floaty)
          Constructor given vector components.

     floatdot(constSbVec2f&v)const
          Returns dot (inner) product of vector and another vector.

     SbBoolequals(constSbVec2fv,floattolerance)const
          Equality  comparison within given tolerance — the square of the length of the maximum distance between
          the two vectors.

     constfloat*getValue()constvoidgetValue(float&x,float&y)const
          Returns vector components.

     floatlength()const
          Returns geometric length of vector.

     voidnegate()
          Negates each component of vector in place.

     floatnormalize()
          Changes vector to be unit length.

     SbVec2f&setValue(constfloatv[2])SbVec2f&setValue(floatx,floaty)
          Sets the vector components.

     float&operator[](inti)constfloat&operator[](inti)
          Accesses indexed component of vector.

     SbVec2f&operator*=(floatd)SbVec2f&operator/=(floatd)
          Component-wise scalar multiplication and division operators.

     SbVec2f&operator+=(constSbVec2f&u)SbVec2f&operator-=(constSbVec2f&u)
          Component-wise vector addition and subtraction operators.

     SbVec2foperator-()const
          Nondestructive unary negation — returns a new vector.

     SbVec2foperator*(constSbVec2f&v,floatd)SbVec2foperator*(floatd,constSbVec2f&v)SbVec2foperator/(constSbVec2f&v,floatd)
          Component-wise binary scalar multiplication and division operators.

     SbVec2foperator+(constSbVec2f&v1,constSbVec2f&v2)SbVec2foperator-(constSbVec2f&v1,constSbVec2f&v2)
          Component-wise binary vector addition and subtraction operators.

     intoperator==(constSbVec2f&v1,constSbVec2f&v2)intoperator!=(constSbVec2f&v1,constSbVec2f&v2)
          Equality comparison operators.

       SbVec2f — 2D vector class

SbVec3f,SbVec4f,SbVec2s,SbRotationSbVec2f(3IV)()

#include<Inventor/SbLinear.h>

          Methods from class SbVec2f:

                         SbVec2f()SbVec2f(constfloatv[2])SbVec2f(floatx,floaty)floatdot(constSbVec2f&v)constSbBoolequals(constSbVec2fv,floattolerance)constconstfloat*getValue()constvoidgetValue(float&x,float&y)constfloatlength()constvoidnegate()floatnormalize()SbVec2f&setValue(constfloatv[2])SbVec2f&setValue(floatx,floaty)float&operator[](inti)constfloat&operator[](inti)SbVec2f&operator*=(floatd)SbVec2f&operator/=(floatd)SbVec2f&operator+=(constSbVec2f&u)SbVec2f&operator-=(constSbVec2f&u)SbVec2foperator-()constSbVec2foperator*(constSbVec2f&v,floatd)SbVec2foperator*(floatd,constSbVec2f&v)SbVec2foperator/(constSbVec2f&v,floatd)SbVec2foperator+(constSbVec2f&v1,constSbVec2f&v2)SbVec2foperator-(constSbVec2f&v1,constSbVec2f&v2)intoperator==(constSbVec2f&v1,constSbVec2f&v2)intoperator!=(constSbVec2f&v1,constSbVec2f&v2)