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

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

List of all members.

Public Member Functions

 SbCylinderSheetProjector (const SbBool orienttoeye=1)
 SbCylinderSheetProjector (const SbCylinder &cyl, const SbBool orienttoeye=1)
virtual SbProjectorcopy (void) const
virtual SbVec3f project (const SbVec2f &point)
virtual SbRotation getRotation (const SbVec3f &point1, const SbVec3f &point2)

Protected Member Functions

virtual void setupPlane (void)

Protected Attributes

SbVec3f workingProjPoint
SbVec3f planeDir
SbPlane tolPlane


Detailed Description

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

Constructor & Destructor Documentation

SbCylinderSheetProjector::SbCylinderSheetProjector ( const SbBool  orienttoeye = 1  ) 

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

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

Referenced by copy().

SbCylinderSheetProjector::SbCylinderSheetProjector ( const SbCylinder cyl,
const SbBool  orienttoeye = 1 
)

Constructor with explicit definition of projection cylinder.


Member Function Documentation

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 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.

References SbCylinderSheetProjector().

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.

References SbProjector::getWorkingLine(), SbPlane::intersect(), SbCylinderProjector::intersectCylinderFront(), SbCylinderProjector::lastPoint, SbCylinderProjector::needSetup, SoDebugError::postWarning(), setupPlane(), tolPlane, and workingProjPoint.

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

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

Implements SbCylinderProjector.

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

void SbCylinderSheetProjector::setupPlane ( void   )  [protected, virtual]


Member Data Documentation

Last projected point, in the working space coordinate system.

Referenced by project().

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

Referenced by setupPlane().

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

Referenced by project(), and setupPlane().


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

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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