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SbSphereSheetProjector.h
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1/*=======================================================================
2 * Copyright 1991-1996, Silicon Graphics, Inc.
3 * ALL RIGHTS RESERVED
4 *
5 * UNPUBLISHED -- Rights reserved under the copyright laws of the United
6 * States. Use of a copyright notice is precautionary only and does not
7 * imply publication or disclosure.
8 *
9 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
10 * Use, duplication or disclosure by the Government is subject to restrictions
11 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
12 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
13 * in similar or successor clauses in the FAR, or the DOD or NASA FAR
14 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc.,
15 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
16 *
17 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
18 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
19 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
20 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
21 * GRAPHICS, INC.
22**=======================================================================*/
23/*=======================================================================
24** Author : Howard Look (MMM yyyy)
25** Modified by : Gavin Bell (MMM yyyy)
26** Modified by : Paul Isaacs (MMM yyyy)
27**=======================================================================*/
28/*=======================================================================
29 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
30 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
31 *** ***
32 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
33 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
34 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
35 *** ***
36 *** RESTRICTED RIGHTS LEGEND ***
37 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
38 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
39 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
40 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
41 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
42 *** ***
43 *** COPYRIGHT (C) 1996-2014 BY FEI S.A.S, ***
44 *** BORDEAUX, FRANCE ***
45 *** ALL RIGHTS RESERVED ***
46**=======================================================================*/
47/*=======================================================================
48** Modified by : VSG (MMM YYYY)
49**=======================================================================*/
50
51
52#ifndef _SB_SPHERE_SHEET_PROJECTOR_
53#define _SB_SPHERE_SHEET_PROJECTOR_
54
56
86{
87 public:
99
110 SbBool orientToEye = TRUE);
111
120 virtual SbProjector * copy() const;
126 virtual SbVec3f project(const SbVec2f &point);
132 virtual SbVec3f intersect( const SbLine &line );
136 virtual SbRotation getRotation(const SbVec3f &point1,
137 const SbVec3f &point2);
138
139 private:
140 // Sets up the plane use to project on to.
141 // If projecting from a point, call with no parameters.
142 // If intersecting a line, pass the line in *working space*.
143 virtual void setupPlane( const SbLine *line = NULL );
144
145 // The projection point in working space.
146 SbVec3f workingProjPoint;
147
148 // Information about the plane used for intersection testing.
149 SbVec3f planePoint; // point on plane
150 SbVec3f planeDir; // normal direction
151 float planeDist; // distance from sphere center
152 SbPlane tolPlane; // the plane itself
153
154};
155
156#endif /* _SB_SPHERE_SHEET_PROJECTOR_ */
157
#define TRUE
Possible value of SbBool.
Definition SbBase.h:77
Directed line in 3D.
Definition SbLine.h:57
Oriented plane in 3D.
Definition SbPlane.h:64
Base class for representing projectors.
Definition SbProjector.h:85
Class for representing a rotation.
Definition SbRotation.h:126
Class for representing a sphere.
Definition SbSphere.h:57
Sphere projector.
Sphere-sheet projector.
virtual SbVec3f project(const SbVec2f &point)
Applies the projector using the given point, returning the point in three dimensions that it projects...
virtual SbProjector * copy() const
Returns an instance that is a copy of this instance.
SbSphereSheetProjector(SbBool orientToEye=TRUE)
Constructor that uses a default sphere centered at the origin with radius 1.0.
SbSphereSheetProjector(const SbSphere &sph, SbBool orientToEye=TRUE)
Constructor that uses a supplied sphere.
virtual SbVec3f intersect(const SbLine &line)
Applies the projector using the given line in world coordinates, returning the point in three dimensi...
virtual SbRotation getRotation(const SbVec3f &point1, const SbVec3f &point2)
Computes a rotation based on two points on this projector.
2D vector class.
Definition SbVec.h:76
3D vector class.
Definition SbVec.h:932
int SbBool
Boolean type.
Definition SbBase.h:87