Sphere-plane projector. More...
#include <Inventor/projectors/SbSpherePlaneProjector.h>
Public Member Functions | |
| SbSpherePlaneProjector (float edgeTol=0.9, SbBool orientToEye=TRUE) | |
| Default constructor. | |
| SbSpherePlaneProjector (const SbSphere &sph, float edgeTol=0.9, SbBool orientToEye=TRUE) | |
| Constructor taking the sphere. | |
| ~SbSpherePlaneProjector () | |
| Destructor. | |
| virtual SbProjector * | copy () const |
| Returns an instance that is a copy of this instance. | |
| virtual SbVec3f | project (const SbVec2f &point) |
| 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) |
| Computes a rotation based on two points on this projector. | |
Protected Member Functions | |
| SbRotation | getRotation (const SbVec3f &point1, SbBool tol1, const SbVec3f &point2, SbBool tol2) |
Detailed Description
SbSpherePlaneProjector projects a window space point (usually based on the mouse location) onto a surface defined by a sphere and plane cutting through the sphere. Two projected points can produce a rotation about the sphere's center. When the mouse position projects onto the plane, the rotations will be as if the plane is being dragged, causing the sphere to roll beneath it.
Incremental changes (delta rotation) can be computed during interactive sessions. Sphere projectors are typically used to write interactive 3D manipulators and viewers.
- See Also
- SbCylinderProjector, SbCylinderPlaneProjector, SbCylinderSectionProjector, SbCylinderSheetProjector, SbLineProjector, SbPlaneProjector, SbSphereSheetProjector
Definition at line 92 of file SbSpherePlaneProjector.h.
Constructor & Destructor Documentation
| SbSpherePlaneProjector::SbSpherePlaneProjector | ( | float | edgeTol = 0.9, |
| SbBool | orientToEye = TRUE |
||
| ) |
The default view volume is undefined. The default working space is identity (world space). The default sphere to use has a radius of 1.0 and is centered at (0,0,0). The default edge tolerance is .9. The default eye orientation is TRUE.
| SbSpherePlaneProjector::SbSpherePlaneProjector | ( | const SbSphere & | sph, |
| float | edgeTol = 0.9, |
||
| SbBool | orientToEye = TRUE |
||
| ) |
| SbSpherePlaneProjector::~SbSpherePlaneProjector | ( | ) | [inline] |
Definition at line 109 of file SbSpherePlaneProjector.h.
Member Function Documentation
| virtual SbProjector* SbSpherePlaneProjector::copy | ( | ) | const [virtual] |
The caller is responsible for deleting the copy when done.
Reimplemented from SbSphereSectionProjector.
| SbRotation SbSpherePlaneProjector::getRotation | ( | const SbVec3f & | point1, |
| SbBool | tol1, | ||
| const SbVec3f & | point2, | ||
| SbBool | tol2 | ||
| ) | [protected] |
| virtual SbRotation SbSpherePlaneProjector::getRotation | ( | const SbVec3f & | point1, |
| const SbVec3f & | point2 | ||
| ) | [virtual] |
Reimplemented from SbSphereSectionProjector.
The point should be normalized from 0-1, with (0,0) at the lower-left.
Reimplemented from SbSphereSectionProjector.
The documentation for this class was generated from the following file:
- MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/projectors/SbSpherePlaneProjector.h
