---

SbCylinderProjector Class Reference

The SbCylinderProjector class is the abstract base class for mapping to cylindrical surfaces. More...

#include <Inventor/projectors/SbCylinderProjector.h>

Inheritance diagram for SbCylinderProjector::

List of all members.

Public Methods
virtual SbVec3f	project (const SbVec2f &point)=0
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
virtual SbRotation	getRotation (const SbVec3f &point1, const SbVec3f &point2)=0
void	setCylinder (const SbCylinder &cyl)
const SbCylinder &	getCylinder (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
	SbCylinderProjector (const SbBool orienttoeye)
	SbCylinderProjector (const SbCylinder &cylinder, const SbBool orienttoeye)
SbBool	intersectCylinderFront (const SbLine &line, SbVec3f &result)
Protected Attributes
SbBool	intersectFront
SbCylinder	cylinder
SbBool	orientToEye
SbBool	needSetup
SbVec3f	lastPoint

---

Detailed Description

The SbCylinderProjector class is the abstract base class for mapping to cylindrical surfaces.

The cylinder projectors map 2D points to various surface types based on cylindrical shapes.

See also:

SbSphereProjector

---

Constructor & Destructor Documentation

SbCylinderProjector::SbCylinderProjector (  const SbBool orienttoeye )  [protected]

Default constructor sets up a cylinder along the Y axis with height 1.

SbCylinderProjector::SbCylinderProjector (  const SbCylinder & cylinder, const SbBool orienttoeye )  [protected]

Constructor taking an explicit cylinder projection definition.

---

Member Function Documentation

virtual SbVec3f SbCylinderProjector::project (  const SbVec2f & point )  [pure 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 SbProjector. Reimplemented in SbCylinderSectionProjector, SbCylinderPlaneProjector, and SbCylinderSheetProjector.

SbVec3f SbCylinderProjector::projectAndGetRotation (  const SbVec2f & point, SbRotation & rot )

Project the 2D point to a 3D coordinate on the cylindrical surface, and find the rotation from the last projection to this one. See also: project(), getRotation()

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

Returns rotation on the projection surface which re-orients point1 to point2. Reimplemented in SbCylinderSectionProjector, SbCylinderPlaneProjector, and SbCylinderSheetProjector.

void SbCylinderProjector::setCylinder (  const SbCylinder & cylinder )

Set cylinder to project onto.

const SbCylinder & SbCylinderProjector::getCylinder (  void )  const

Returns projection cylinder.

void SbCylinderProjector::setOrientToEye (  const SbBool orienttoeye )

Sets whether or not the projection surface should be oriented towards the eye of the viewer.

SbBool SbCylinderProjector::isOrientToEye (  void )  const

Returns the state of the cylinder orientation flag.

void SbCylinderProjector::setFront (  const SbBool infront )

Set whether to intersect with the outside of the cylinder (isfront equal to TRUE), or the inside.

SbBool SbCylinderProjector::isFront (  void )  const

Returns value of the flag which decides whether to intersect with the outside or inside of the cylinder.

SbBool SbCylinderProjector::isPointInFront (  const SbVec3f & point )  const

Check if point is on the frontside or the backside of the cylinder.

void SbCylinderProjector::setWorkingSpace (  const SbMatrix & space )  [virtual]

Overloaded from parent to set needSetup to TRUE. Reimplemented from SbProjector.

SbBool SbCylinderProjector::intersectCylinderFront (  const SbLine & line, SbVec3f & result )  [protected]

Intersect line with the SbCylinderProjector::cylinder and place the intersection point (if any) in result. Considers setFront() settings. Returns TRUE if line actually hits the cylinder, FALSE if it doesn't intersect with it.

---

Member Data Documentation

SbCylinderProjector::intersectFront [protected]

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

SbCylinderProjector::cylinder [protected]

Specification of the projection cylinder.

SbCylinderProjector::orientToEye [protected]

Which direction the cylindrical surface is oriented.

SbCylinderProjector::needSetup [protected]

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

SbCylinderProjector::lastPoint [protected]

Stores the previously projected 3D point.

---

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

• SbCylinderProjector.cpp
• SbCylinderProjector.h

---