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 SbRotation	getRotation (const SbVec3f &point1, const SbVec3f &point2)
virtual SbVec3f	project (const SbVec2f &point)
Public Member Functions inherited from SbCylinderProjector
const SbCylinder &	getCylinder (void) const
SbBool	isFront (void) const
SbBool	isOrientToEye (void) const
SbBool	isPointInFront (const SbVec3f &point) const
SbVec3f	projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
void	setCylinder (const SbCylinder &cyl)
void	setFront (const SbBool infront)
void	setOrientToEye (const SbBool orienttoeye)
virtual void	setWorkingSpace (const SbMatrix &space)
Public Member Functions inherited from SbProjector
const SbViewVolume &	getViewVolume (void) const
const SbMatrix &	getWorkingSpace (void) const
virtual void	setViewVolume (const SbViewVolume &vol)
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 ()
float	findVanishingDistance (void) const
SbLine	getWorkingLine (const SbVec2f &point) const
SbBool	verifyProjection (const SbVec3f &projpt) const

Protected Attributes
SbVec3f	planeDir
SbPlane	tolPlane
SbVec3f	workingProjPoint
Protected Attributes inherited from SbCylinderProjector
SbCylinder	cylinder
SbBool	intersectFront
SbVec3f	lastPoint
SbBool	needSetup
SbBool	orientToEye
Protected Attributes inherited from SbProjector
SbViewVolume	viewVol
SbMatrix	workingToWorld
SbMatrix	worldToWorking

Detailed Description

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

Constructor & Destructor Documentation

SbCylinderSheetProjector() [1/2]

SbCylinderSheetProjector::SbCylinderSheetProjector

(

const SbBool

orienttoeye = TRUE

)

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

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

SbCylinderSheetProjector() [2/2]

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

Constructor with explicit definition of projection cylinder.

Member Function Documentation

copy()

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 are 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.

getRotation()

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

virtual

Returns rotation on the projection surface which reorients point1 to point2.

Implements SbCylinderProjector.

project()

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.

setupPlane()

void SbCylinderSheetProjector::setupPlane ( void )

protectedvirtual

Recalculates projection surface settings after changes to the parameters.

Member Data Documentation

planeDir

SbCylinderSheetProjector::planeDir

protected

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

tolPlane

SbCylinderSheetProjector::tolPlane

protected

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

workingProjPoint

SbCylinderSheetProjector::workingProjPoint

protected

Last projected point, in the working space coordinate system.

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

• SbCylinderSheetProjector.h
• SbCylinderSheetProjector.cpp