Coin Logo Coin3D is Free Software,
published under the BSD 3-clause license.
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:
SbCylinderProjector SbProjector

Public Member Functions

 SbCylinderSheetProjector (const SbBool orienttoeye=TRUE)
 SbCylinderSheetProjector (const SbCylinder &cyl, const SbBool orienttoeye=TRUE)
virtual SbProjectorcopy (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 SbCylindergetCylinder (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 SbViewVolumegetViewVolume (void) const
const SbMatrixgetWorkingSpace (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() [1/2]

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() [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

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.

◆ project()

SbVec3f SbCylinderSheetProjector::project ( const SbVec2f point)

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.

◆ getRotation()

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

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

Implements SbCylinderProjector.

◆ setupPlane()

void SbCylinderSheetProjector::setupPlane ( void  )

Recalculates projection surface settings after changes to the parameters.

Member Data Documentation

◆ workingProjPoint


Last projected point, in the working space coordinate system.

◆ planeDir


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

◆ tolPlane


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

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