SbSphereSheetProjector(3IV)NAMESbSphereSheetProjector (SbSphSheetProj) - sphere-sheet projector
INHERITS FROM
SbProjector > SbSphereProjector > SbSphereSheetProjectorSYNOPSIS
#include <Inventor_c/projectors/SbSphereSheetProjector.h>
typedef SbSphereSheetProjector
SbSphSheetProj
Functions from class SbSphereSheetProjector:
SbSphereSheetProjector * SbSphSheetProjCreate(SbBool orientToEye = TRUE)
SbSphereSheetProjector * SbSphSheetProjCreateSph(const SbSphere *sph,
SbBool orientToEye = TRUE)
void SbSphSheetProjDelete(SbSphSheetProj *this)
Functions from class SbSphereProjector:
SbVec3f SbSphSheetProjProjectGetRot(SbSphSheetProj *this,
const SbVec2f *point, SbRotation *rot)
SbRotation SbSphSheetProjGetRot(SbSphSheetProj *this, const
SbVec3f *point1, const SbVec3f *point2)
void SbSphSheetProjSetSph(SbSphSheetProj *this, const
SbSphere *sph)
const SbSphere * SbSphSheetProjGetSph(const SbSphSheetProj *this)
void SbSphSheetProjSetOrientToEye(SbSphSheetProj *this,
SbBool orientToEye)
SbBool SbSphSheetProjIsOrientToEye(const SbSphSheetProj
*this)
void SbSphSheetProjSetFront(SbSphSheetProj *this, SbBool
isFront)
SbBool SbSphSheetProjIsFront(const SbSphSheetProj *this)
SbBool SbSphSheetProjIsPointInFront(const SbSphSheetProj
*this, const SbVec3f *point)
Functions from class SbProjector:
SbVec3f SbSphSheetProjProject(SbSphSheetProj *this, const
SbVec2f *point)
void SbSphSheetProjSetViewVol(SbSphSheetProj *this,
const SbViewVolume *vol)
const SbViewVolume * SbSphSheetProjGetViewVol(const SbSphSheetProj
*this)
void SbSphSheetProjSetWorkSpace(SbSphSheetProj *this,
const SbMatrix *space)
const SbMatrix * SbSphSheetProjGetWorkSpace(const SbSphSheetProj
*this)
SbProjector * SbSphSheetProjCopy(const SbSphSheetProj *this)
Page 1SbSphereSheetProjector(3IV)DESCRIPTIONSbSphereSheetProjector projects a window space point (usually based on
the mouse location) onto the surface of a sphere with a hyperbolic sheet
draped over it. This allows smooth transitions onto and off of the
sphere. Two projected points can produce a rotation about the sphere's
center. When the mouse position projects on to the sheet, the rotations
will be as if the sheet 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.
FUNCTIONSSbSphereSheetProjector * SbSphSheetProjCreate(SbBool orientToEye = TRUE)
SbSphereSheetProjector * SbSphSheetProjCreateSph(const SbSphere *sph,
SbBool orientToEye = TRUE)
Constructors. The first uses a default sphere centered at the origin
with radius 1.0; the sphere is supplied in the second. The
orientToEye parameter determines whether the sheet is perpendicular
to the eye, or perpendicular to the sphere's Z axis. Setting that
parameter to TRUE (the default) specifies that the sheet be
perpendicular to the eye, which is most often the desired behavior.
The default view volume is undefined, and the working space is
identity.
void SbSphSheetProjDelete(SbSphSheetProj *this)
Destructor.
FILE FORMAT/DEFAULTS
SphereSheetProjector {
}
SEE ALSO
SbCylinderProjector, SbCylinderPlaneProjector,
SbCylinderSectionProjector, SbCylinderSheetProjector, SbLineProjector,
SbPlaneProjector, SbSpherePlaneProjector
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