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SbCylinderSectionProjector Class Reference

The SbCylinderSectionProjector projects 2D points to a sliced cylinder. More...

#include <Inventor/projectors/SbCylinderSectionProjector.h>

Inheritance diagram for SbCylinderSectionProjector::

List of all members.

Public Methods
	SbCylinderSectionProjector (const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
	SbCylinderSectionProjector (const SbCylinder &cyl, const float edgetol=0.9f, const SbBool orienttoeye=TRUE)
virtual SbProjector *	copy (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)
Protected Methods
virtual void	setupTolerance (void)
Protected Attributes
float	tolerance
float	tolDist
SbVec3f	planeDir
SbLine	planeLine
float	planeDist
SbPlane	tolPlane

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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

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Constructor & Destructor Documentation

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

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.

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

Constructor with explicit setting of the projection cylinder.

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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. Reimplemented from SbProjector. Reimplemented in SbCylinderPlaneProjector.

SbVec3f SbCylinderSectionProjector::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. Reimplemented from SbCylinderProjector. Reimplemented in SbCylinderPlaneProjector.

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

Returns rotation on the projection surface which re-orients point1 to point2. Reimplemented from SbCylinderProjector. Reimplemented in SbCylinderPlaneProjector.

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.

float SbCylinderSectionProjector::getTolerance (  void    )  const

Returns edge tolerance for the cylinder half.

SbBool SbCylinderSectionProjector::isWithinTolerance (  const SbVec3f &    point )

Check if point is within the part of the cylinder used for projections.

void SbCylinderSectionProjector::setupTolerance (  void    )  [protected, virtual]

Recalculate the internal projection surface settings. Needs to be done if any of the parameters influencing the projection surface have been changed from subclasses without using the access methods.

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Member Data Documentation

SbCylinderSectionProjector::tolerance [protected]

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

SbCylinderSectionProjector::tolDist [protected]

Tolerance value multiplied with the cylinder radius.

SbCylinderSectionProjector::planeDir [protected]

Direction of cutting plane.

SbCylinderSectionProjector::planeLine [protected]

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

SbCylinderSectionProjector::planeDist [protected]

Distance from plane to cylinder axis.

SbCylinderSectionProjector::tolPlane [protected]

Defines the plane cutting the cylinder into a projection part.

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

• SbCylinderSectionProjector.cpp
• SbCylinderSectionProjector.h

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