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Public Member Functions | Protected Member Functions | Protected Attributes
SbCylinderSectionProjector Class Reference

The SbCylinderSectionProjector projects 2D points to a sliced cylinder.The projection cylinder for this class is sliced by a clipping plane parallel to its height axis. Projections will be mapped to the remaining cylinder part. More...

#include <Inventor/projectors/SbCylinderSectionProjector.h>

Inheritance diagram for SbCylinderSectionProjector:
SbCylinderProjector SbProjector SbCylinderPlaneProjector

List of all members.

Public Member Functions

 SbCylinderSectionProjector (const float edgetol=0.9f, const SbBool orienttoeye=1)
 SbCylinderSectionProjector (const SbCylinder &cyl, const float edgetol=0.9f, const SbBool orienttoeye=1)
virtual SbProjectorcopy (void) const
virtual SbVec3f project (const SbVec2f &point)
virtual SbRotation getRotation (const SbVec3f &point1, const SbVec3f &point2)
void setTolerance (const float edgetol)
float getTolerance (void) const
SbBool isWithinTolerance (const SbVec3f &point)
- 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

Protected Member Functions

virtual void setupTolerance (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

float tolerance
float tolDist
SbVec3f planeDir
SbLine planeLine
float planeDist
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 SbCylinderSectionProjector projects 2D points to a sliced cylinder.

The projection cylinder for this class is sliced by a clipping plane parallel to its height axis. Projections will be mapped to the remaining cylinder part.

See also:
SbSphereSectionProjector

Constructor & Destructor Documentation

SbCylinderSectionProjector::SbCylinderSectionProjector ( const float  edgetol = 0.9f,
const SbBool  orienttoeye = 1 
)

Default constructor. See SbCylinderProjector::SbCylinderProjector().

The edgetol value should be within <0, 1], and specifies how much of the cylinder is used as a projection surface. 1.0 means the full front half is used.

References SbCylinderProjector::needSetup.

Referenced by copy().

SbCylinderSectionProjector::SbCylinderSectionProjector ( const SbCylinder cyl,
const float  edgetol = 0.9f,
const SbBool  orienttoeye = 1 
)

Constructor with explicit setting of the projection cylinder.

References SbCylinderProjector::needSetup.


Member Function Documentation

SbProjector * SbCylinderSectionProjector::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.

Reimplemented in SbCylinderPlaneProjector.

References SbCylinderSectionProjector().

SbVec3f SbCylinderSectionProjector::project ( const SbVec2f point)
virtual
SbRotation SbCylinderSectionProjector::getRotation ( const SbVec3f point1,
const SbVec3f point2 
)
virtual

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

Implements SbCylinderProjector.

Reimplemented in SbCylinderPlaneProjector.

References SbCylinderProjector::cylinder, SbVec3f::dot(), SbCylinder::getAxis(), SbLine::getClosestPoint(), SbLine::getDirection(), and SbRotation::getValue().

Referenced by SbCylinderPlaneProjector::getRotation().

void SbCylinderSectionProjector::setTolerance ( const float  edgetol)

The edgetol value decides how much of the surface of the cylinder is used for projection. 1.0 means the full cylinder half is used.

References SbCylinderProjector::needSetup, SoDebugError::postWarning(), and tolerance.

float SbCylinderSectionProjector::getTolerance ( void  ) const

Returns edge tolerance for the cylinder half.

References tolerance.

SbBool SbCylinderSectionProjector::isWithinTolerance ( const SbVec3f point)
void SbCylinderSectionProjector::setupTolerance ( void  )
protectedvirtual

Member Data Documentation

SbCylinderSectionProjector::tolerance
protected

Tolerance value, deciding how much of the half-cylinder to do projections against.

Referenced by getTolerance(), setTolerance(), and setupTolerance().

SbCylinderSectionProjector::tolDist
protected

Tolerance value multiplied with the cylinder radius.

Referenced by setupTolerance().

SbCylinderSectionProjector::planeDir
protected

Direction of cutting plane.

Referenced by SbCylinderPlaneProjector::getRotation(), and setupTolerance().

SbCylinderSectionProjector::planeLine
protected

A line within the plane which is parallel to the cylinder axis.

Referenced by SbCylinderPlaneProjector::getRotation(), isWithinTolerance(), project(), and setupTolerance().

SbCylinderSectionProjector::planeDist
protected

Distance from plane to cylinder axis.

Referenced by setupTolerance().

SbCylinderSectionProjector::tolPlane
protected

Defines the plane cutting the cylinder into a projection part.

Referenced by isWithinTolerance(), SbCylinderPlaneProjector::project(), project(), and setupTolerance().


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

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