SbCylinderPlaneProjector(3IV)NAMESbCylinderPlaneProjector (SbCylPlnProj) - cylinder-plane projector
INHERITS FROM
SbProjector > SbCylinderProjector > SbCylinderSectionProjector >
SbCylinderPlaneProjectorSYNOPSIS
#include <Inventor_c/projectors/SbCylinderPlaneProjector.h>
typedef SbCylinderPlaneProjector
SbCylPlnProj
Functions from class SbCylinderPlaneProjector:
SbCylinderPlaneProjector * SbCylPlnProjCreate(float edgeTol = .9, SbBool
orientToEye = TRUE)
SbCylinderPlaneProjector * SbCylPlnProjCreateCyl(const SbCylinder *cyl,
float edgeTol = .9, SbBool orientToEye =
TRUE)
void SbCylPlnProjDelete(SbCylPlnProj *this)
Functions from class SbCylinderSectionProjector:
void SbCylPlnProjSetTol(SbCylPlnProj *this, float edgeTol)
float SbCylPlnProjGetTol(const SbCylPlnProj *this)
SbBool SbCylPlnProjIsWithinTol(SbCylPlnProj *this, const
SbVec3f *point)
Functions from class SbCylinderProjector:
SbVec3f SbCylPlnProjProjectGetRot(SbCylPlnProj *this, const
SbVec2f *point, SbRotation *rot)
SbRotation SbCylPlnProjGetRot(SbCylPlnProj *this, const SbVec3f
*point1, const SbVec3f *point2)
void SbCylPlnProjSetCyl(SbCylPlnProj *this, const
SbCylinder *cyl)
const SbCylinder * SbCylPlnProjGetCyl(const SbCylPlnProj *this)
void SbCylPlnProjSetOrientToEye(SbCylPlnProj *this, SbBool
orientToEye)
SbBool SbCylPlnProjIsOrientToEye(const SbCylPlnProj *this)
void SbCylPlnProjSetFront(SbCylPlnProj *this, SbBool
isFront)
SbBool SbCylPlnProjIsFront(const SbCylPlnProj *this)
SbBool SbCylPlnProjIsPointInFront(const SbCylPlnProj *this,
const SbVec3f *point)
Functions from class SbProjector:
SbVec3f SbCylPlnProjProject(SbCylPlnProj *this, const
SbVec2f *point)
Page 1SbCylinderPlaneProjector(3IV)
void SbCylPlnProjSetViewVol(SbCylPlnProj *this, const
SbViewVolume *vol)
const SbViewVolume * SbCylPlnProjGetViewVol(const SbCylPlnProj *this)
void SbCylPlnProjSetWorkSpace(SbCylPlnProj *this, const
SbMatrix *space)
const SbMatrix * SbCylPlnProjGetWorkSpace(const SbCylPlnProj *this)
SbProjector * SbCylPlnProjCopy(const SbCylPlnProj *this)
DESCRIPTIONSbCylinderPlaneProjector projects a window space point (usually based on
the mouse location) onto a surface defined by a cylinder and plane
cutting through the cylinder. Two projected points can produce a rotation
along the cylinder's axis. When the mouse position projects onto the
plane, the rotations will be as if the plane is being dragged, causing
the cylinder to roll beneath it.
Incremental changes (delta rotation) can be computed during interactive
sessions. Cylinder projectors are typically used to write interactive 3D
manipulators and viewers.
FUNCTIONSSbCylinderPlaneProjector * SbCylPlnProjCreate(float edgeTol = .9, SbBool
orientToEye = TRUE)
SbCylinderPlaneProjector * SbCylPlnProjCreateCyl(const SbCylinder *cyl,
float edgeTol = .9, SbBool orientToEye =
TRUE)
Constructors. The first uses a default cylinder aligned with the Y
axis with radius 1.0; the cylinder is supplied in the second. The
position of the plane is specified as a fraction of the cylinder
radius with the parameter edgeTol. A tolerance value of 1.0
positions the plane down the center of the cylinder. A tolerance
value of 0.5 defines the longitudinal plane halfway between the
center and the outside edge of the cylinder. The default value is
.9, so that almost half the cylinder is in front of the plane. The
orientToEye parameter determines whether the plane is perpendicular
to the eye, or perpendicular to the cylinder's Z axis. Setting that
parameter to TRUE (the default) specifies that the plane 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 SbCylPlnProjDelete(SbCylPlnProj *this)
Destructor.
FILE FORMAT/DEFAULTS
CylinderPlaneProjector {
}
Page 2SbCylinderPlaneProjector(3IV)SEE ALSO
SbCylinderSheetProjector, SbLineProjector, SbPlaneProjector,
SbSpherePlaneProjector, SbSphereProjector, SbSphereSectionProjector,
SbSphereSheetProjector
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