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

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.

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

SbRotation SbSphereProjector::getRotation (const SbVec3f & point1, const SbVec3f & point2) [pure virtual]¶

Returns rotation on the projection surface which re-orients 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 frontside or the backside 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.

SbSphereProjector::intersectFront [protected]¶

Flag which says whether or not we should map to the outside or inside of the sphere surface.

SbSphereProjector::sphere [protected]¶

Projection sphere.

SbSphereProjector::orientToEye [protected]¶

Which direction the spherical surface is oriented.

SbSphereProjector::needSetup [protected]¶

Set to TRUE whenever the projection surface needs to be recalculated according to the setting of the SbSphereProjector::orientToEye flag.

SbSphereProjector::lastPoint [protected]¶

Stores the previously projected 3D point.