SbCylinderSheetProjector Class Reference

The SbCylinderSheetProjector class projects 2D points to 3D points on a sheet covering a cylindrical shape. More...

#include <Inventor/projectors/SbCylinderSheetProjector.h>

Inheritance diagram for SbCylinderSheetProjector:

Public Member Functions
	SbCylinderSheetProjector (const SbBool orienttoeye=TRUE)
	SbCylinderSheetProjector (const SbCylinder &cyl, 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 SbCylinderProjector
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
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)
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
virtual void	setupPlane (void)
Protected Member Functions inherited from SbCylinderProjector
	SbCylinderProjector (const SbBool orienttoeye)
	SbCylinderProjector (const SbCylinder &cylinder, const SbBool orienttoeye)
SbBool	intersectCylinderFront (const SbLine &line, 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
SbVec3f	workingProjPoint
SbVec3f	planeDir
SbPlane	tolPlane
Protected Attributes inherited from SbCylinderProjector
SbBool	intersectFront
SbCylinder	cylinder
SbBool	orientToEye
SbBool	needSetup
SbVec3f	lastPoint
Protected Attributes inherited from SbProjector
SbViewVolume	viewVol
SbMatrix	worldToWorking
SbMatrix	workingToWorld

Detailed Description

The SbCylinderSheetProjector class projects 2D points to 3D points on a sheet covering a cylindrical shape.

Constructor & Destructor Documentation

SbCylinderSheetProjector::SbCylinderSheetProjector

(

const SbBool

orienttoeye = TRUE

)

Constructor. Uses default cylinder defintion, see SbCylinderProjector::SbCylinderProjector().

orienttoeye decides whether or not the cylinder and sheet should always be oriented towards the viewer.

SbCylinderSheetProjector::SbCylinderSheetProjector	(	const SbCylinder &	cyl,
		const SbBool	orienttoeye = TRUE
	)

Constructor with explicit definition of projection cylinder.

Member Function Documentation

SbProjector * SbCylinderSheetProjector::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.

Implements SbProjector.

SbVec3f SbCylinderSheetProjector::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.

Implements SbCylinderProjector.

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

virtual

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

Implements SbCylinderProjector.

void SbCylinderSheetProjector::setupPlane ( void  )

protectedvirtual

Recalculates projection surface settings after changes to the parameters.

Member Data Documentation

SbCylinderSheetProjector::workingProjPoint

protected

Last projected point, in the working space coordinate system.

SbCylinderSheetProjector::planeDir

protected

Normal vector of the plane defining the orientation of the sheet.

SbCylinderSheetProjector::tolPlane

protected

The tolerance value specifying how much of the cylinder is "above" the sheet.

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

• SbCylinderSheetProjector.h
• SbCylinderSheetProjector.cpp