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The SbCylinderSheetProjector class projects 2D points to 3D points on a sheet covering a cylindrical shape. More...
#include <Inventor/projectors/SbCylinderSheetProjector.h>
Public Member Functions | |
SbCylinderSheetProjector (const SbBool orienttoeye=TRUE) | |
SbCylinderSheetProjector (const SbCylinder &cyl, const SbBool orienttoeye=TRUE) | |
virtual SbProjector * | copy (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 |
The SbCylinderSheetProjector class projects 2D points to 3D points on a sheet covering a cylindrical shape.
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.
Referenced by copy().
SbCylinderSheetProjector::SbCylinderSheetProjector | ( | const SbCylinder & | cyl, |
const SbBool | orienttoeye = TRUE |
||
) |
Constructor with explicit definition of projection cylinder.
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().
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] |
Recalculates projection surface settings after changes to the parameters.
References SbCylinderProjector::cylinder, SbCylinder::getAxis(), SbLine::getClosestPoint(), SbLine::getPosition(), SbViewVolume::getProjectionDirection(), SbViewVolume::getViewUp(), SbCylinderProjector::intersectFront, SbMatrix::multDirMatrix(), SbCylinderProjector::needSetup, SbVec3f::normalize(), SbCylinderProjector::orientToEye, planeDir, tolPlane, SbProjector::viewVol, and SbProjector::worldToWorking.
Referenced by project().
SbCylinderSheetProjector::workingProjPoint [protected] |
Last projected point, in the working space coordinate system.
Referenced by project().
SbCylinderSheetProjector::planeDir [protected] |
Normal vector of the plane defining the orientation of the sheet.
Referenced by setupPlane().
SbCylinderSheetProjector::tolPlane [protected] |
The tolerance value specifying how much of the cylinder is "above" the sheet.
Referenced by project(), and setupPlane().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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