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SbPlaneProjector.3sim
Langue: en
Version: 151709 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Constructor & Destructor Documentation
- Member Function Documentation
- SbProjector * SbPlaneProjector::copy (void) const [virtual]
- SbVec3f SbPlaneProjector::project (const SbVec2f & point) [virtual]
- void SbPlaneProjector::setPlane (const SbPlane & planeref)
- const SbPlane & SbPlaneProjector::getPlane (void) const
- void SbPlaneProjector::setOrientToEye (const SbBool orienttoeye)
- SbBool SbPlaneProjector::isOrientToEye (void) const
- SbVec3f SbPlaneProjector::getVector (const SbVec2f & viewpos1, const SbVec2f & viewpos2) [virtual]
- SbVec3f SbPlaneProjector::getVector (const SbVec2f & viewpos) [virtual]
- void SbPlaneProjector::setStartPosition (const SbVec2f & viewpos)
- void SbPlaneProjector::setStartPosition (const SbVec3f & point)
- void SbPlaneProjector::setupPlane (void) [protected]
- Member Data Documentation
- Author
NAME
SbPlaneProjector - The SbPlaneProjector class projects 2D points to 3D points in a plane.The 3D projection of the 2D coordinates is for this projector class constrained to lie inside a pre-defined 3D plane.
SYNOPSIS
#include <Inventor/projectors/SbPlaneProjector.h>
Inherits SbProjector.
Public Member Functions
SbPlaneProjector (const SbBool orient=0)
SbPlaneProjector (const SbPlane &plane, const SbBool orient=0)
virtual SbProjector * copy (void) const
virtual SbVec3f project (const SbVec2f &point)
void setPlane (const SbPlane &plane)
const SbPlane & getPlane (void) const
void setOrientToEye (const SbBool orienttoeye)
SbBool isOrientToEye (void) const
virtual SbVec3f getVector (const SbVec2f &viewpos1, const SbVec2f &viewpos2)
virtual SbVec3f getVector (const SbVec2f &viewpos)
void setStartPosition (const SbVec2f &viewpos)
void setStartPosition (const SbVec3f &point)
Protected Member Functions
void setupPlane (void)
Protected Attributes
SbPlane plane
SbPlane nonOrientPlane
SbBool orientToEye
SbBool needSetup
SbVec3f lastPoint
Detailed Description
The SbPlaneProjector class projects 2D points to 3D points in a plane.
The 3D projection of the 2D coordinates is for this projector class constrained to lie inside a pre-defined 3D plane.
See also:
- SbLineProjector
Constructor & Destructor Documentation
SbPlaneProjector::SbPlaneProjector (const SbBool orient = 0)
Constructor. Sets up a projection plane parallel with the XY-plane in world coordinates.
Referenced by copy().
SbPlaneProjector::SbPlaneProjector (const SbPlane & plane, const SbBool orient = 0)
Constructor taking an explicit projection plane definition.
Member Function Documentation
SbProjector * SbPlaneProjector::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 SbPlaneProjector().
SbVec3f SbPlaneProjector::project (const SbVec2f & point) [virtual]
Projects 2D point into a 3D point within the current projection plane.
Implements SbProjector.
References SbProjector::findVanishingDistance(), SbLine::getClosestPoints(), SbViewVolume::getDepth(), SbLine::getDirection(), SbPlane::getDistance(), SbViewVolume::getNearDist(), SbPlane::getNormal(), SbViewVolume::getPlane(), SbLine::getPosition(), SbViewVolume::getProjectionType(), SbProjector::getWorkingLine(), SbPlane::intersect(), SbMatrix::multLineMatrix(), SbMatrix::multVecMatrix(), needSetup, SbViewVolume::ORTHOGRAPHIC, plane, SoDebugError::post(), setupPlane(), SbPlane::transform(), SbProjector::verifyProjection(), SbProjector::viewVol, SbProjector::workingToWorld, and SbProjector::worldToWorking.
Referenced by SoTranslate2Dragger::drag(), SoTabPlaneDragger::drag(), SoSpotLightDragger::drag(), SoScale2Dragger::drag(), SoRotateDiscDragger::drag(), SoHandleBoxDragger::drag(), SoVRMLPlaneSensor::drag(), getVector(), and setStartPosition().
void SbPlaneProjector::setPlane (const SbPlane & planeref)
Set a new projection plane.
References needSetup, nonOrientPlane, and plane.
Referenced by SoTranslate2Dragger::dragStart(), SoTransformerDragger::dragStart(), SoTabPlaneDragger::dragStart(), SoSpotLightDragger::dragStart(), SoScale2Dragger::dragStart(), SoRotateDiscDragger::dragStart(), SoHandleBoxDragger::dragStart(), and SoVRMLPlaneSensor::dragStart().
const SbPlane & SbPlaneProjector::getPlane (void) const
Returns the current projection plane.
References plane.
void SbPlaneProjector::setOrientToEye (const SbBool orienttoeye)
Sets whether or not the plane should always be oriented towards the 'eye' of the viewer.
References needSetup, and orientToEye.
SbBool SbPlaneProjector::isOrientToEye (void) const
Returns the state of the plane orientation flag.
References orientToEye.
SbVec3f SbPlaneProjector::getVector (const SbVec2f & viewpos1, const SbVec2f & viewpos2) [virtual]
Returns a vector between the projected 3D points of viewpos1 and viewpos2.
References lastPoint, and project().
SbVec3f SbPlaneProjector::getVector (const SbVec2f & viewpos) [virtual]
Returns a vector between the last projected point and the projected 3D point of viewpos.
References lastPoint, and project().
void SbPlaneProjector::setStartPosition (const SbVec2f & viewpos)
Explicitly set position of initial projection, so we get correct values for later calls to getVector() etc.
References lastPoint, and project().
void SbPlaneProjector::setStartPosition (const SbVec3f & point)
Explicitly set position of initial projection, so we get correct values for later calls to getVector() etc.
References lastPoint.
void SbPlaneProjector::setupPlane (void) [protected]
Should be called whenever SbPlaneProjector::needSetup is TRUE. Will recalculate projection plane.
References SbPlane::getDistanceFromOrigin(), SbPlane::getNormal(), SbViewVolume::getProjectionDirection(), SbMatrix::multDirMatrix(), needSetup, nonOrientPlane, orientToEye, plane, SbProjector::viewVol, and SbProjector::worldToWorking.
Referenced by project().
Member Data Documentation
SbPlaneProjector::plane [protected]
The projection plane.
Referenced by getPlane(), project(), setPlane(), and setupPlane().
SbPlaneProjector::nonOrientPlane [protected]
The 'original' plane which was set (as opposed to the recalculated projection plane according to the SbPlaneProjector::orientToEye setting).
Referenced by setPlane(), and setupPlane().
SbPlaneProjector::orientToEye [protected]
Which direction the plane is oriented.
Referenced by isOrientToEye(), setOrientToEye(), and setupPlane().
SbPlaneProjector::needSetup [protected]
Set to TRUE whenever the plane needs to be recalculated according to the setting of the SbPlaneProjector::orientToEye flag.
Referenced by project(), setOrientToEye(), setPlane(), and setupPlane().
SbPlaneProjector::lastPoint [protected]
Stores the previously projected 3D point.
Referenced by getVector(), and setStartPosition().
Author
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Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre