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SbSphereProjector Class Reference

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

#include <Inventor/projectors/SbSphereProjector.h>

Inheritance diagram for SbSphereProjector::

List of all members.

Public Methods
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)
Protected Methods
	SbSphereProjector (const SbBool orienttoeye)
	SbSphereProjector (const SbSphere &s, const SbBool orienttoeye)
SbBool	intersectSphereFront (const SbLine &l, SbVec3f &result)
Protected Attributes
SbBool	intersectFront
SbSphere	sphere
SbBool	orientToEye
SbBool	needSetup
SbVec3f	lastPoint

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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

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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.

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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()

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

Returns rotation on the projection surface which re-orients point1 to point2. Reimplemented in SbSphereSheetProjector, SbSphereSectionProjector, and SbSpherePlaneProjector.

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.

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]

Overloaded from parent to set needSetup to TRUE. 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.

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Member Data Documentation

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.

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

• SbSphereProjector.cpp
• SbSphereProjector.h

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