SbPlane(3IV)

NAME
     SbPlane (SbPln) - oriented plane in 3D

INHERITS FROM
     SbPlane

SYNOPSIS
     #include <Inventor_c/SbLinear.h>

     typedef SbPlane     SbPln

          Functions from class SbPlane:

     void                SbPlnOffset(SbPln *this, float d)
     SbBool              SbPlnIntersect(const SbPln *this, const SbLine *l,
                              SbVec3f *intersection)
     void                SbPlnTransform(SbPln *this, const SbMatrix *matrix)
     SbBool              SbPlnIsInHalfSpace(const SbPln *this, const SbVec3f
                              *point)
     int                 SbPlnIsEq(SbPln *this, const SbPlane *p1, const
                              SbPlane *p2)
     int                 SbPlnIsNEq(SbPln *this, const SbPlane *p1, const
                              SbPlane *p2)


DESCRIPTION
     Represents an oriented plane in 3D. This is a lightweight class/datatype
     that is used for arguments to some Inventor objects.  Note that there are
     no Create or Delete functions available for this class. SbPlane's should
     be declared and/or malloc'd as standard C structs:

               /* This is defined in Inventor_c/SbLinear.h: */
               struct SbPlane {
                    struct SbVec3f  normalVec;
                    float   distance;
               };
               typedef SbPlane SbPln;


               /* This is what your code should look like: */
               SbPlane  p;

               SbV3fSetX_Y_Z( p.normalVec, 1.0, 0.0, 0.0 );
               p.distance = 3.0;



FUNCTIONS
     void                SbPlnOffset(SbPln *this, float d)
          Offset a plane by a given distance.
     SbBool              SbPlnIntersect(const SbPln *this, const SbLine *l,
                              SbVec3f *intersection)
          Intersect line and plane, returning TRUE if there is an
          intersection, FALSE if line is parallel to plane.

     void                SbPlnTransform(SbPln *this, const SbMatrix *matrix)
          Transforms the plane by the given matrix.

     SbBool              SbPlnIsInHalfSpace(const SbPln *this, const SbVec3f
                              *point)
          Returns TRUE if the given point is within the half-space defined by
          the plane.

     int                 SbPlnIsEq(SbPln *this, const SbPlane *p1, const
                              SbPlane *p2)
     int                 SbPlnIsNEq(SbPln *this, const SbPlane *p1, const
                              SbPlane *p2)
          Equality/inequality comparison operators.


FILE FORMAT/DEFAULTS
     Plane {
     }

SEE ALSO
     SbVec3f, SbLine