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 : ICLCore/src/ICLCore/Line.h ** 00010 ** Module : ICLCore ** 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.LGPL ** 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 <ICLUtils/CompatMacros.h> 00034 #include <ICLUtils/Point.h> 00035 #include <ICLUtils/Rect.h> 00036 #include <vector> 00037 00038 namespace icl{ 00039 namespace core{ 00041 00048 class ICLCore_API Line{ 00049 public: 00051 static const Line null; 00052 00054 00057 Line(utils::Point start=utils::Point::null, 00058 utils::Point end=utils::Point::null): 00059 start(start),end(end){} 00060 00062 00066 Line(utils::Point start, float angle, float length); 00067 00069 00072 Line operator+(const utils::Point &p) const { return Line(start+p,end+p); } 00073 00075 00078 Line operator-(const utils::Point &p) const { return Line(start-p,end-p); } 00079 00081 00082 float length() const; 00083 00085 utils::Point findClosestPoint(const utils::Point &p) const; 00086 00088 00090 inline float getMinDist(const utils::Point &p) const{ 00091 return findClosestPoint(p).distanceTo(p); 00092 } 00093 00095 00100 bool intersects(const core::Line &other, utils::Point32f *p=0, 00101 float *dstr=0, float *dsts=0) const; 00102 00103 00105 00113 std::vector<utils::Point> sample( const utils::Rect &limits=utils::Rect::null ) const; 00114 00116 void swap() { utils::Point x=start; start=end; end=x; } 00117 00119 utils::Point start; 00120 00122 utils::Point end; 00123 }; 00124 00126 ICLCore_API std::ostream &operator<<(std::ostream &s, const Line &l); 00127 00129 ICLCore_API std::istream &operator>>(std::istream &s, Line &l); 00130 00131 } // namespace core 00132 } 00133