Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91,92 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file contains the definition of the SbCylinderSheetProjector 00048 | class. This projector projects the mouse position onto the 00049 | surface of a cylinder with a hyperbolic sheet draped over it. 00050 | This allows smooth transitions onto and off of the cylinder. 00051 | 00052 | Author(s) : Howard Look, Paul Isaacs 00053 | 00054 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00055 _______________________________________________________________________ 00056 */ 00057 00058 #ifndef _SB_CYLINDER_SHEET_PROJECTOR_ 00059 #define _SB_CYLINDER_SHEET_PROJECTOR_ 00060 00061 #include <Inventor/projectors/SbCylinderProjector.h> 00062 00065 00087 00088 00089 class INVENTOR_API SbCylinderSheetProjector : public SbCylinderProjector 00090 { 00091 public: 00092 00094 SbCylinderSheetProjector(SbBool orientToEye = TRUE); 00095 00106 SbCylinderSheetProjector(const SbCylinder &cyl, 00107 SbBool orientToEye = TRUE); 00108 00110 ~SbCylinderSheetProjector() {} 00111 00114 virtual SbProjector * copy() const; 00115 00120 virtual SbVec3f project(const SbVec2f &point); 00121 00123 virtual SbRotation getRotation(const SbVec3f &point1, 00124 const SbVec3f &point2); 00125 00126 protected: 00128 virtual void setupPlane(); 00129 00131 SbVec3f workingProjPoint; 00132 00134 SbVec3f planeDir; 00135 SbPlane tolPlane; 00136 }; 00137 00138 #endif /* _SB_CYLINDER_SHEET_PROJECTOR_ */