1SbCylinderSectionProjector(3IV)() SbCylinderSectionProjector(3IV)()
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6 SbCylinderSectionProjector — cylinder-section projector
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9 SbProjector > SbCylinderProjector > SbCylinderSectionProjector
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12 #include <Inventor/projectors/SbCylinderSectionProjector.h>
13 Methods from class SbCylinderSectionProjector:
15 SbCylinderSectionProjector(float edgeTol = .9, SbBool
17 orientToEye = TRUE)
18 SbCylinderSectionProjector(const SbCylinder &cyl,
19 float edgeTol = .9, SbBool orientToEye = TRUE)
20 ~SbCylinderSectionProjector()
21 void setTolerance(float edgeTol)
22 float getTolerance() const
23 SbBool isWithinTolerance(const SbVec3f &point)
24 Methods from class SbCylinderProjector:
26 SbVec3f projectAndGetRotation(const SbVec2f &point, SbRota‐
28 tion &rot)
29 virtual SbRotation getRotation(const SbVec3f &point1, const SbVec3f
30 &point2)
31 void setCylinder(const SbCylinder &cyl)
32 const SbCylinder & getCylinder() const
33 void setOrientToEye(SbBool orientToEye)
34 SbBool isOrientToEye() const
35 void setFront(SbBool isFront)
36 SbBool isFront() const
37 SbBool isPointInFront(const SbVec3f &point) const
38 Methods from class SbProjector:
40 virtual SbVec3f project(const SbVec2f &point)
42 virtual void setViewVolume(const SbViewVolume &vol)
43 const SbViewVolume & getViewVolume() const
44 virtual void setWorkingSpace(const SbMatrix &space)
45 const SbMatrix & getWorkingSpace() const
46 virtual SbProjector * copy() const
47
50 SbCylinderSectionProjector projects a window space point (usually based
51 on the mouse location) onto the section of a cylinder that has been
52 sliced by a plane. Two projected points can produce a rotation along
53 the cylinder's axis. The tolerance slice can be specified as a frac‐
54 tion of the radius of the cylinder. The projection point will not
55 extend beyond the sliced portion of the cylinder.
56 Incremental changes (delta rotation) can be computed during interactive
58 sessions. Cylinder projectors are typically used to write interactive
59 3D manipulators and viewers.
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62 SbCylinderSectionProjector(float edgeTol = .9, SbBool
63 orientToEye = TRUE)
64 SbCylinderSectionProjector(const SbCylinder &cyl,
65 float edgeTol = .9, SbBool orientToEye = TRUE)
66 Constructors. The first uses a default cylinder aligned with the Y
67 axis with radius 1.0; the cylinder is supplied in the second. The
68 position of the plane which slices the cylinder into a section is
69 specified as a fraction of the cylinder radius with the parameter
70 edgeTol. A tolerance value of 1.0 positions the plane down the cen‐
71 ter of the cylinder. A tolerance value of 0.5 defines the longitudi‐
72 nal plane halfway between the center and the outside edge of the
73 cylinder. The default value is .9, so that almost half the cylinder
74 is in front of the plane. The orientToEye parameter determines
75 whether the plane is perpendicular to the eye, or perpendicular to
76 the cylinder's Z axis. Setting that parameter to TRUE (the default)
77 specifies that the plane be perpendicular to the eye, which is most
78 often the desired behavior.
79 The default view volume is undefined, and the working space is iden‐
81 tity.
82 ~SbCylinderSectionProjector()
84 Destructor.
85 void setTolerance(float edgeTol)
87 float getTolerance() const
88 Set and get the edge tolerance as a fraction of the radius of the
89 cylinder. If this is 1.0, the projector is a half cylinder. If this
90 is .1, the projector is a slice of the cylinder with radius
91 .1*radius. Default is .9.
92 SbBool isWithinTolerance(const SbVec3f &point)
94 Find whether this point on the cylinder or tolerance plane is within
95 tolerance.
96
99 SbCylinderPlaneProjector, SbCylinderSheetProjector, SbLineProjector,
100 SbPlaneProjector, SbSpherePlaneProjector, SbSphereProjector, SbSphere‐
101 SectionProjector, SbSphereSheetProjector
102 SbCylinderSectionProjector(3IV)()