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SbCylinderProjector Class Reference
[Projector classes (mostly for internal use)]

The SbCylinderProjector class is the abstract base class for mapping to cylindrical surfaces. More...

#include <Inventor/projectors/SbCylinderProjector.h>

Inheritance diagram for SbCylinderProjector:

SbProjector SbCylinderSectionProjector SbCylinderSheetProjector SbCylinderPlaneProjector List of all members.

Public Methods

virtual SbVec3f project (const SbVec2f &point)=0
SbVec3f projectAndGetRotation (const SbVec2f &point, SbRotation &rot)
virtual SbRotation getRotation (const SbVec3f &point1, const SbVec3f &point2)=0
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)

Protected Methods

 SbCylinderProjector (const SbBool orienttoeye)
 SbCylinderProjector (const SbCylinder &cylinder, const SbBool orienttoeye)
SbBool intersectCylinderFront (const SbLine &line, SbVec3f &result)

Protected Attributes

SbBool intersectFront
SbCylinder cylinder
SbBool orientToEye
SbBool needSetup
SbVec3f lastPoint

Detailed Description

The SbCylinderProjector class is the abstract base class for mapping to cylindrical surfaces.

The cylinder projectors map 2D points to various surface types based on cylindrical shapes.

See also:
SbSphereProjector


Constructor & Destructor Documentation

SbCylinderProjector::SbCylinderProjector const SbBool    orienttoeye [protected]
 

Default constructor sets up a cylinder along the Y axis with height 1.

SbCylinderProjector::SbCylinderProjector const SbCylinder   cylinder,
const SbBool    orienttoeye
[protected]
 

Constructor taking an explicit cylinder projection definition.


Member Function Documentation

virtual SbVec3f SbCylinderProjector::project const SbVec2f   point [pure 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 SbProjector.

Implemented in SbCylinderPlaneProjector, SbCylinderSectionProjector, and SbCylinderSheetProjector.

SbVec3f SbCylinderProjector::projectAndGetRotation const SbVec2f   point,
SbRotation   rot
 

Project the 2D point to a 3D coordinate on the cylindrical surface, and find the rotation from the last projection to this one.

See also:
project(), getRotation()

SbRotation SbCylinderProjector::getRotation const SbVec3f   point1,
const SbVec3f   point2
[pure virtual]
 

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

Implemented in SbCylinderPlaneProjector, SbCylinderSectionProjector, and SbCylinderSheetProjector.

void SbCylinderProjector::setCylinder const SbCylinder   cylinder
 

Set cylinder to project onto.

const SbCylinder & SbCylinderProjector::getCylinder void    const
 

Returns projection cylinder.

void SbCylinderProjector::setOrientToEye const SbBool    orienttoeye
 

Sets whether or not the projection surface should be oriented towards the eye of the viewer.

SbBool SbCylinderProjector::isOrientToEye void    const
 

Returns the state of the cylinder orientation flag.

void SbCylinderProjector::setFront const SbBool    infront
 

Set whether to intersect with the outside of the cylinder (isfront equal to TRUE), or the inside.

SbBool SbCylinderProjector::isFront void    const
 

Returns value of the flag which decides whether to intersect with the outside or inside of the cylinder.

SbBool SbCylinderProjector::isPointInFront const SbVec3f   point const
 

Check if point is on the frontside or the backside of the cylinder.

void SbCylinderProjector::setWorkingSpace const SbMatrix   space [virtual]
 

Sets the matrix used for converting from the projector's coordinate system to the world coordinate system.

Reimplemented from SbProjector.

SbBool SbCylinderProjector::intersectCylinderFront const SbLine   line,
SbVec3f   result
[protected]
 

Intersect line with the SbCylinderProjector::cylinder and place the intersection point (if any) in result. Considers setFront() settings.

Returns TRUE if line actually hits the cylinder, FALSE if it doesn't intersect with it.


Member Data Documentation

SbCylinderProjector::intersectFront [protected]
 

Flag which says whether or not we should map to the outside or inside of the cylinder surface.

SbCylinderProjector::cylinder [protected]
 

Specification of the projection cylinder.

SbCylinderProjector::orientToEye [protected]
 

Which direction the cylindrical surface is oriented.

SbCylinderProjector::needSetup [protected]
 

Set to TRUE whenever the projection surface needs to be recalculated according to the setting of the SbCylinderProjector::orientToEye flag.

SbCylinderProjector::lastPoint [protected]
 

Stores the previously projected 3D point.


The documentation for this class was generated from the following files:
Generated on Sat May 24 22:39:31 2003 for Coin by doxygen1.2.18