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 SbPlaneProjector 00048 | class. This projects the mouse onto a plane. If orientToEye 00049 | is set to TRUE, the plane will be oriented to the eye. 00050 | 00051 | Author(s) : Howard Look, Paul Isaacs 00052 | 00053 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00054 _______________________________________________________________________ 00055 */ 00056 00057 #ifndef _SB_PLANE_PROJECTOR_ 00058 #define _SB_PLANE_PROJECTOR_ 00059 00060 #include <Inventor/projectors/SbProjector.h> 00061 00064 00076 00077 00078 class INVENTOR_API SbPlaneProjector : public SbProjector 00079 { 00080 public: 00081 00084 SbPlaneProjector(SbBool orient = FALSE); 00085 00087 SbPlaneProjector(const SbPlane &plane, 00088 SbBool orient = FALSE); 00089 00091 ~SbPlaneProjector(){}; 00092 00095 virtual SbProjector * copy() const; 00096 00101 virtual SbVec3f project(const SbVec2f &point); 00102 00104 void setPlane(const SbPlane &plane); 00105 00107 const SbPlane & getPlane() const { return plane; } 00108 00115 void setOrientToEye(SbBool orientToEye); 00117 SbBool isOrientToEye() const { return orientToEye; } 00118 00120 virtual SbVec3f getVector(const SbVec2f &mousePosition1, 00121 const SbVec2f &mousePosition2); 00122 00131 virtual SbVec3f getVector(const SbVec2f &mousePosition); 00132 00134 void setStartPosition(const SbVec2f &mousePosition) 00135 { lastPoint = project(mousePosition); } 00136 00138 void setStartPosition(const SbVec3f &point) 00139 { lastPoint = point; } 00140 protected: 00141 00142 SbPlane plane; 00143 SbBool orientToEye; 00144 SbBool needSetup; 00145 SbPlane nonOrientPlane; 00146 00147 SbVec3f lastPoint; 00148 00149 void setupPlane(); 00150 }; 00151 00152 #endif /* _SB_PLANE_PROJECTOR_ */