SbSpherePlaneProjector Class Reference

The SbSpherePlaneProjector class projects 2D points to a half-sphere and a plane.This projector uses a plane along with the half-sphere of SbSphereSectionProjector for projections. If the 2D point mapping "misses" the sphere section, the 3D point will be projected onto the plane. More...

#include <Inventor/projectors/SbSpherePlaneProjector.h>

Inheritance diagram for SbSpherePlaneProjector:

Public Member Functions
	SbSpherePlaneProjector (const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
	SbSpherePlaneProjector (const SbSphere &sph, const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
virtual SbProjector *	copy (void) const
virtual SbVec3f	project (const SbVec2f &point)
virtual SbRotation	getRotation (const SbVec3f &point1, const SbVec3f &point2)
Public Member Functions inherited from SbSphereSectionProjector
	SbSphereSectionProjector (const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
	SbSphereSectionProjector (const SbSphere &sph, const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
void	setTolerance (const float edgetol)
float	getTolerance (void) const
void	setRadialFactor (const float rad=0.0f)
float	getRadialFactor (void) const
SbBool	isWithinTolerance (const SbVec3f &point)
Public Member Functions inherited from SbSphereProjector
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
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 void	setViewVolume (const SbViewVolume &vol)
const SbViewVolume &	getViewVolume (void) const
const SbMatrix &	getWorkingSpace (void) const
virtual SbBool	tryProject (const SbVec2f &point, const float epsilon, SbVec3f &result)

Protected Member Functions
SbRotation	getRotation (const SbVec3f &point1, const SbBool tol1, const SbVec3f &point2, const SbBool tol2)
Protected Member Functions inherited from SbSphereSectionProjector
virtual void	setupTolerance (void)
Protected Member Functions inherited from SbSphereProjector
	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

Additional Inherited Members
Protected Attributes inherited from SbSphereSectionProjector
float	tolerance
float	tolDist
float	radialFactor
SbVec3f	planePoint
SbVec3f	planeDir
float	planeDist
SbPlane	tolPlane
Protected Attributes inherited from SbSphereProjector
SbBool	intersectFront
SbSphere	sphere
SbBool	orientToEye
SbBool	needSetup
SbVec3f	lastPoint
Protected Attributes inherited from SbProjector
SbViewVolume	viewVol
SbMatrix	worldToWorking
SbMatrix	workingToWorld

Detailed Description

The SbSpherePlaneProjector class projects 2D points to a half-sphere and a plane.

This projector uses a plane along with the half-sphere of SbSphereSectionProjector for projections. If the 2D point mapping "misses" the sphere section, the 3D point will be projected onto the plane.

See also

SbCylinderPlaneProjector

Constructor & Destructor Documentation

SbSpherePlaneProjector::SbSpherePlaneProjector	(	const float	edgetol = 0.9f,
		const SbBool	orienttoeye = TRUE
	)

Default constructor. See SbSphereSectionProjector::SbSphereSectionProjector().

SbSpherePlaneProjector::SbSpherePlaneProjector	(	const SbSphere &	sph,
		const float	edgetol = 0.9f,
		const SbBool	orienttoeye = TRUE
	)

Constructor with explicit specification of projection sphere.

Member Function Documentation

SbProjector * SbSpherePlaneProjector::copy ( void  ) const

virtual

Construct and return a copy of this projector. The caller is responsible for destructing the new instance.

Note that if the Coin library has been built as a DLL under Microsoft Windows and you use this method from application code, you must make sure that both the Coin DLL and the application executable is using the same instance of a C Run-Time (CRT) library. Otherwise, you will get memory heap corruption upon deallocating the returned instances, eventually leading to mysterious crashes.

Reimplemented from SbSphereSectionProjector.

SbVec3f SbSpherePlaneProjector::project ( const SbVec2f &  point )

virtual

Project the 2D point from normalized viewport coordinates to a 3D point. The mapping will be done in accordance with the type of the projector.

Reimplemented from SbSphereSectionProjector.

SbRotation SbSpherePlaneProjector::getRotation ( const SbVec3f &  point1, const SbVec3f &  point2  )

virtual

Returns rotation on the projection surface which re-orients point1 to point2.

Reimplemented from SbSphereSectionProjector.

SbRotation SbSpherePlaneProjector::getRotation ( const SbVec3f &  point1, const SbBool  tol1, const SbVec3f &  point2, const SbBool  tol2  )

protected

Calculates rotation from point1 to point2, with tol1 and tol2 deciding whether or not to use the tolerance setting.

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The documentation for this class was generated from the following files:

• SbSpherePlaneProjector.h
• SbSpherePlaneProjector.cpp