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Cylinder projector. More...
#include <Inventor/projectors/SbCylinderProjector.h>
Public Member Functions | |
~SbCylinderProjector () | |
Destructor. | |
virtual SbVec3f | project (const SbVec2f &point)=0 |
Apply the projector using the given point, returning the point in three dimensions that it projects to. | |
SbVec3f | projectAndGetRotation (const SbVec2f &point, SbRotation &rot) |
Apply the projector using the given point, returning the point in three dimensions that it projects to. | |
virtual SbRotation | getRotation (const SbVec3f &point1, const SbVec3f &point2)=0 |
Get a rotation given two points on this cylinder projector. | |
void | setCylinder (const SbCylinder &cyl) |
Set and get the cylinder on which to project points. | |
const SbCylinder & | getCylinder () const |
Set and get the cylinder on which to project points. | |
void | setOrientToEye (SbBool orientToEye) |
Set and get whether the projector should always be oriented towards the eye. | |
SbBool | isOrientToEye () const |
Set and get whether the projector should always be oriented towards the eye. | |
void | setFront (SbBool isFront) |
Set and get whether the projector should intersect the half of the cylinder that faces the eye. | |
SbBool | isFront () const |
Set and get whether the projector should intersect the half of the cylinder that faces the eye. | |
SbBool | isPointInFront (const SbVec3f &point) const |
Set and get whether the projector should intersect the half of the cylinder that faces the eye. | |
virtual void | setWorkingSpace (const SbMatrix &space) |
Set the transform space to work in. | |
Protected Member Functions | |
SbCylinderProjector (SbBool orientToEye) | |
Constructors The default cylinder to is centered about the Y axis and has a radius of 1.0. | |
SbCylinderProjector (const SbCylinder &cyl, SbBool orientToEye) | |
SbBool | intersectCylinderFront (const SbLine &line, SbVec3f &result) |
Just like cylinder::intersect, except always returns the intersection that is in "front". | |
Protected Attributes | |
SbBool | intersectFront |
Are intersections done on the front half ( if not, they're done on th e back half) of the cylinder? | |
SbCylinder | cylinder |
Cylinder for this projector. | |
SbBool | orientToEye |
TRUE if always oriented to eye. | |
SbBool | needSetup |
Set TRUE whenever cylinder, work space or orientation changes. | |
SbVec3f | lastPoint |
Cached last point on this projector. |
SbCylinderProjector is an abstract base class for projectors that use a cylinder in their projection. The getRotation() method
for an SbCylinderProjector will always return a rotation that is about the axis of the cylinder. Cylinder projectors are typically used to write interactive 3D manipulators and viewers.
Definition at line 86 of file SbCylinderProjector.h.
SbCylinderProjector::~SbCylinderProjector | ( | ) | [inline] |
Definition at line 91 of file SbCylinderProjector.h.
SbCylinderProjector::SbCylinderProjector | ( | SbBool | orientToEye | ) | [protected] |
SbCylinderProjector::SbCylinderProjector | ( | const SbCylinder & | cyl, |
SbBool | orientToEye | ||
) | [protected] |
const SbCylinder& SbCylinderProjector::getCylinder | ( | ) | const [inline] |
The default cylinder is aligned with the Y axis and has radius 1.0.
Definition at line 118 of file SbCylinderProjector.h.
virtual SbRotation SbCylinderProjector::getRotation | ( | const SbVec3f & | point1, |
const SbVec3f & | point2 | ||
) | [pure virtual] |
The rotation will be about the axis of the cylinder.
Implemented in SbCylinderPlaneProjector, SbCylinderSectionProjector, and SbCylinderSheetProjector.
SbBool SbCylinderProjector::intersectCylinderFront | ( | const SbLine & | line, |
SbVec3f & | result | ||
) | [protected] |
SbBool SbCylinderProjector::isFront | ( | ) | const [inline] |
Definition at line 133 of file SbCylinderProjector.h.
SbBool SbCylinderProjector::isOrientToEye | ( | ) | const [inline] |
Set to FALSE if the tolerance should be evaluated in working space.
Definition at line 125 of file SbCylinderProjector.h.
The point should be normalized from 0-1, with (0,0) at the lower-left.
Implements SbProjector.
Implemented in SbCylinderPlaneProjector, SbCylinderSectionProjector, and SbCylinderSheetProjector.
SbVec3f SbCylinderProjector::projectAndGetRotation | ( | const SbVec2f & | point, |
SbRotation & | rot | ||
) |
This also returns in rot a rotation about the axis of the cylinder from the last projected point to this one. The passed point should be normalized (i.e. lie in the range [0.0,1.0]), with (0,0) at the lower-left.
void SbCylinderProjector::setCylinder | ( | const SbCylinder & | cyl | ) |
The default cylinder is aligned with the Y axis and has radius 1.0.
void SbCylinderProjector::setFront | ( | SbBool | isFront | ) |
Set to FALSE if the projector should intersect with the rear half.
void SbCylinderProjector::setOrientToEye | ( | SbBool | orientToEye | ) |
Set to FALSE if the tolerance should be evaluated in working space.
virtual void SbCylinderProjector::setWorkingSpace | ( | const SbMatrix & | space | ) | [virtual] |
Reimplemented from SbProjector.
SbCylinder SbCylinderProjector::cylinder [protected] |
Definition at line 158 of file SbCylinderProjector.h.
SbBool SbCylinderProjector::intersectFront [protected] |
Definition at line 152 of file SbCylinderProjector.h.
SbVec3f SbCylinderProjector::lastPoint [protected] |
Subclasses must set this in their project and getRotation methods.
Definition at line 165 of file SbCylinderProjector.h.
SbBool SbCylinderProjector::needSetup [protected] |
Definition at line 160 of file SbCylinderProjector.h.
SbBool SbCylinderProjector::orientToEye [protected] |
Definition at line 159 of file SbCylinderProjector.h.