Image Component Library (ICL)
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00001 /******************************************************************** 00002 ** Image Component Library (ICL) ** 00003 ** ** 00004 ** Copyright (C) 2006-2013 CITEC, University of Bielefeld ** 00005 ** Neuroinformatics Group ** 00006 ** Website: www.iclcv.org and ** 00007 ** http://opensource.cit-ec.de/projects/icl ** 00008 ** ** 00009 ** File : ICLGeom/src/ICLGeom/ViewRay.h ** 00010 ** Module : ICLGeom ** 00011 ** Authors: Christof Elbrechter ** 00012 ** ** 00013 ** ** 00014 ** GNU LESSER GENERAL PUBLIC LICENSE ** 00015 ** This file may be used under the terms of the GNU Lesser General ** 00016 ** Public License version 3.0 as published by the ** 00017 ** ** 00018 ** Free Software Foundation and appearing in the file LICENSE.GPL ** 00019 ** included in the packaging of this file. Please review the ** 00020 ** following information to ensure the license requirements will ** 00021 ** be met: http://www.gnu.org/licenses/lgpl-3.0.txt ** 00022 ** ** 00023 ** The development of this software was supported by the ** 00024 ** Excellence Cluster EXC 277 Cognitive Interaction Technology. ** 00025 ** The Excellence Cluster EXC 277 is a grant of the Deutsche ** 00026 ** Forschungsgemeinschaft (DFG) in the context of the German ** 00027 ** Excellence Initiative. ** 00028 ** ** 00029 ********************************************************************/ 00030 00031 #pragma once 00032 00033 #include <ICLGeom/GeomDefs.h> 00034 #include <ICLUtils/Exception.h> 00035 #include <ICLUtils/Point32f.h> 00036 #include <iostream> 00037 00038 namespace icl{ 00039 namespace geom{ 00041 struct PlaneEquation; 00044 00045 00048 struct ViewRay{ 00050 explicit ViewRay(const Vec &offset=Vec(), const Vec &direction=Vec(), bool autoNormalizeDirection=false); 00051 00053 Vec offset; 00054 00056 Vec direction; 00057 00059 00060 Vec getIntersection(const PlaneEquation &plane) const throw (utils::ICLException); 00061 00063 enum TriangleIntersection{ 00064 noIntersection, 00065 foundIntersection, 00066 wrongDirection, 00067 degenerateTriangle, 00068 rayIsCollinearWithTriangle 00069 }; 00070 00072 00079 TriangleIntersection getIntersectionWithTriangle(const geom::Vec &a, const geom::Vec &b, const geom::Vec &c, 00080 geom::Vec *intersectionPoint=0, 00081 utils::Point32f *parametricCoords=0) const; 00082 00084 00092 float closestDistanceTo(const Vec &p) const; 00093 00095 float closestSqrDistanceTo(const Vec &p) const; 00096 00098 00108 float closestDistanceTo(const ViewRay &other) const; 00109 00111 00112 Vec operator()(float lambda) const; 00113 }; 00114 00116 std::ostream &operator<<(std::ostream &s, const ViewRay &vr); 00117 } // namespace geom 00118 } 00119