SbSphereProjector(3)                 Coin                 SbSphereProjector(3)

NAME
       SbSphereProjector - The SbSphereProjector class is the abstract base
       class for mapping to spherical surfaces.


SYNOPSIS
       #include <Inventor/projectors/SbSphereProjector.h>

       Inherits SbProjector.

       Inherited by SbSphereSectionProjector, and SbSphereSheetProjector.

   Public Member Functions
       SbVec3f projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
       virtual SbRotation getRotation (const SbVec3f &point1, const SbVec3f
           &point2)=0
       void setSphere (const SbSphere &sph)
       const SbSphere & getSphere (void) const
       void setOrientToEye (const SbBool orienttoeye)
       SbBool isOrientToEye (void) const
       void setFront (const SbBool infront)
       SbBool isFront (void) const
       SbBool isPointInFront (const SbVec3f &point) const
       virtual void setWorkingSpace (const SbMatrix &space)

       Public Member Functions inherited from SbProjector
       virtual SbVec3f project (const SbVec2f &point)=0
       virtual void setViewVolume (const SbViewVolume &vol)
       const SbViewVolume & getViewVolume (void) const
       const SbMatrix & getWorkingSpace (void) const
       virtual SbProjector * copy (void) const =0
       virtual SbBool tryProject (const SbVec2f &point, const float epsilon,
           SbVec3f &result)

   Protected Member Functions
       SbSphereProjector (const SbBool orienttoeye)
       SbSphereProjector (const SbSphere &s, const SbBool orienttoeye)
       SbBool intersectSphereFront (const SbLine &l, SbVec3f &result)

       Protected Member Functions inherited from SbProjector
       SbProjector (void)
       virtual ~SbProjector ()
       SbLine getWorkingLine (const SbVec2f &point) const
       float findVanishingDistance (void) const
       SbBool verifyProjection (const SbVec3f &projpt) const

   Protected Attributes
       SbBool intersectFront
       SbSphere sphere
       SbBool orientToEye
       SbBool needSetup
       SbVec3f lastPoint

       Protected Attributes inherited from SbProjector
       SbViewVolume viewVol
       SbMatrix worldToWorking
       SbMatrix workingToWorld

Detailed Description
       The SbSphereProjector class is the abstract base class for mapping to
       spherical surfaces.

       The sphere projectors map 2D points to various surface types based on
       spherical shapes.


       See also
           SbCylinderProjector

Constructor & Destructor Documentation
   SbSphereProjector::SbSphereProjector (const SbBool orienttoeye) [protected]
       Default constructor sets up a sphere at the origin with radius 1.

   SbSphereProjector::SbSphereProjector (const SbSphere & s, const SbBool
       orienttoeye) [protected]
       Constructor taking an explicit sphere projection definition.

Member Function Documentation
   SbVec3f SbSphereProjector::projectAndGetRotation (const SbVec2f & point,
       SbRotation & rot)
       Project the 2D point to a 3D coordinate on the spherical surface, and
       find the rotation from the last projection to this one.


       See also
           project(), getRotation()

   virtual SbRotation SbSphereProjector::getRotation (const SbVec3f & point1,
       const SbVec3f & point2) [pure virtual]
       Returns rotation on the projection surface which reorients point1 to
       point2.

       Implemented in SbSpherePlaneProjector, SbSphereSectionProjector, and
       SbSphereSheetProjector.

   void SbSphereProjector::setSphere (const SbSphere & sph)
       Set sphere to project onto.

   const SbSphere & SbSphereProjector::getSphere (void ) const
       Returns projection sphere.

   void SbSphereProjector::setOrientToEye (const SbBool orienttoeye)
       Sets whether or not the projection surface should be oriented towards
       the eye of the viewer. Default is TRUE.

   SbBool SbSphereProjector::isOrientToEye (void ) const
       Returns the state of the sphere orientation flag.

   void SbSphereProjector::setFront (const SbBool infront)
       Set whether to intersect with the outside of the sphere (infront equal
       to TRUE), or the inside.

   SbBool SbSphereProjector::isFront (void ) const
       Returns value of the flag which decides whether to intersect with the
       outside or inside of the sphere.

   SbBool SbSphereProjector::isPointInFront (const SbVec3f & point) const
       Check if point is on the front side or the back side of the cylinder.

   void SbSphereProjector::setWorkingSpace (const SbMatrix & space) [virtual]
       Sets the matrix used for converting from the projector's coordinate
       system to the world coordinate system.

       Reimplemented from SbProjector.

   SbBool SbSphereProjector::intersectSphereFront (const SbLine & l, SbVec3f &
       result) [protected]
       Intersect line with the SbSphereProjector::sphere and place the
       intersection point (if any) in result. Considers setFront() settings.


       Returns TRUE if line actually hits the sphere, FALSE if it doesn't
       intersect with it.

Member Data Documentation
   SbBool SbSphereProjector::intersectFront [protected]
       Flag which says whether or not we should map to the outside or inside
       of the sphere surface.

   SbSphere SbSphereProjector::sphere [protected]
       Projection sphere.

   SbBool SbSphereProjector::orientToEye [protected]
       Which direction the spherical surface is oriented.

   SbBool SbSphereProjector::needSetup [protected]
       Set to TRUE whenever the projection surface needs to be recalculated
       according to the setting of the SbSphereProjector::orientToEye flag.

   SbVec3f SbSphereProjector::lastPoint [protected]
       Stores the previously projected 3D point.


Author
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Version 4.0.10             Tue Jun 23 2026 23:48:38       SbSphereProjector(3)