00001 /*======================================================================= 00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States. Use of a copyright notice is precautionary only and does not 00007 * imply publication or disclosure. 00008 * 00009 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: 00010 * Use, duplication or disclosure by the Government is subject to restrictions 00011 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights 00012 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or 00013 * in similar or successor clauses in the FAR, or the DOD or NASA FAR 00014 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc., 00015 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311. 00016 * 00017 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY 00018 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION, 00019 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY 00020 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON 00021 * GRAPHICS, INC. 00022 **=======================================================================*/ 00023 /*======================================================================= 00024 ** Author : Howard Look (MMM yyyy) 00025 ** Modified by : Gavin Bell (MMM yyyy) 00026 ** Modified by : Paul Isaacs (MMM yyyy) 00027 **=======================================================================*/ 00028 /*======================================================================= 00029 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00030 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00031 *** *** 00032 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00033 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00034 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00035 *** *** 00036 *** RESTRICTED RIGHTS LEGEND *** 00037 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00038 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00039 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00040 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00041 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00042 *** *** 00043 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00044 *** BORDEAUX, FRANCE *** 00045 *** ALL RIGHTS RESERVED *** 00046 **=======================================================================*/ 00047 /*======================================================================= 00048 ** Modified by : VSG (MMM YYYY) 00049 **=======================================================================*/ 00050 00051 00052 #ifndef _SB_SPHERE_SHEET_PROJECTOR_ 00053 #define _SB_SPHERE_SHEET_PROJECTOR_ 00054 00055 #include <Inventor/projectors/SbSphereProjector.h> 00056 00086 class SbSphereSheetProjector : public SbSphereProjector 00087 { 00088 public: 00099 SbSphereSheetProjector(SbBool orientToEye = TRUE); 00100 00110 SbSphereSheetProjector(const SbSphere &sph, 00111 SbBool orientToEye = TRUE); 00112 00116 ~SbSphereSheetProjector() {} 00121 virtual SbProjector * copy() const; 00127 virtual SbVec3f project(const SbVec2f &point); 00133 virtual SbVec3f intersect( const SbLine &line ); 00137 virtual SbRotation getRotation(const SbVec3f &point1, 00138 const SbVec3f &point2); 00139 00140 private: 00141 // Sets up the plane use to project on to. 00142 // If projecting from a point, call with no parameters. 00143 // If intersecting a line, pass the line in *working space*. 00144 virtual void setupPlane( const SbLine *line = NULL ); 00145 00146 // The projection point in working space. 00147 SbVec3f workingProjPoint; 00148 00149 // Information about the plane used for intersection testing. 00150 SbVec3f planePoint; // point on plane 00151 SbVec3f planeDir; // normal direction 00152 float planeDist; // distance from sphere center 00153 SbPlane tolPlane; // the plane itself 00154 00155 }; 00156 00157 #endif /* _SB_SPHERE_SHEET_PROJECTOR_ */ 00158 00159