SbSphere(3IV)

NAME
     SbSphere (SbSph) - class for representing a sphere

INHERITS FROM
     SbSphere

SYNOPSIS
     #include <Inventor_c/SbLinear.h>

     typedef SbSphere    SbSph

          Functions from class SbSphere:

     void                SbSphCircumscribe(SbSph *this, const SbBox3f *box)
     SbBool              SbSphIntersect(const SbSph *this, const SbLine *l,
                              SbVec3f *intersection)
     SbBool              SbSphIntersect2(const SbSph *this, const SbLine *l,
                              SbVec3f *enter, SbVec3f *exit)


DESCRIPTION
     Represents a sphere in 3D. This is a lightweight datatype that is used
     for arguments or return values in the Inventor toolkit. See SoSphere for
     a database sphere (used for rendering, picking, etc.).  Note that there
     are no Create and Delete functions for SbSphere . C programmers should
     treat spheres as standard C structs (declare them locally or use malloc()
     ):


          /* This is defined in Inventor_c/SbLinear.h: */

          struct {
              struct SbVec3f center;
              float          radius;
          }


          /* Your code should look something like this: */
          #include <Inventor_c/SbLinear.h>

          SbSphere   s;

          s.radius = 5.0;
          SbV3fSetX_Y_Z( s.center, 0.0, 2.0, 0.0 );




FUNCTIONS
     void                SbSphCircumscribe(SbSph *this, const SbBox3f *box)
          Return a sphere containing a given box.
     SbBool              SbSphIntersect(const SbSph *this, const SbLine *l,
                              SbVec3f *intersection)
     SbBool              SbSphIntersect2(const SbSph *this, const SbLine *l,
                              SbVec3f *enter, SbVec3f *exit)
          Intersect line and sphere, returning TRUE if there is an
          intersection. The line is treated as a ray.


FILE FORMAT/DEFAULTS
     Sphere {
     }

SEE ALSO
     SbVec3f, SbLine, SoSphere