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 : ICLUtils/src/ICLUtils/Point32f.h ** 00010 ** Module : ICLUtils ** 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 <ICLUtils/Point.h> 00034 #include <ICLUtils/ClippedCast.h> 00035 00036 namespace icl{ 00037 namespace utils{ 00038 00040 class Point32f{ 00041 public: 00042 00044 float x; 00045 00047 float y; 00048 00050 static const Point32f null; 00051 00053 Point32f(const Point32f& p=null):x(p.x),y(p.y){} 00054 00056 Point32f(float x,float y):x(x),y(y){} 00057 00059 Point32f(const Point &p):x(p.x),y(p.y){} 00060 00062 bool isNull() const { return (*this)==null; } 00063 00065 bool operator==(const Point32f &s) const {return x==s.x && y==s.y;} 00066 00068 bool operator!=(const Point32f &s) const {return x!=s.x || y!=s.y;} 00069 00071 Point32f operator+(const Point32f &s) const {return Point32f(x+s.x,y+s.y);} 00072 00074 Point32f operator-(const Point32f &s) const {return Point32f(x-s.x,y-s.y);} 00075 00077 Point32f operator*(double d) const { return Point32f(d*x,d*y);} 00078 00080 Point32f& operator+=(const Point32f &s){x+=s.x; y+=s.y; return *this;} 00081 00083 Point32f& operator-=(const Point32f &s){x-=s.x; y-=s.y; return *this;} 00084 00086 Point32f& operator*=(double d) {x*=d; y*=d; return *this; } 00087 00089 Point32f transform(double xfac, double yfac) const{ 00090 return Point32f(xfac*x,yfac*y); 00091 } 00092 00094 float distanceTo(const Point32f &p) const; 00095 00097 bool inTriangle(const utils::Point32f &v1, 00098 const utils::Point32f &v2, 00099 const utils::Point32f &v3) const; 00100 00102 00109 float norm(float p=2) const; 00110 00112 00115 Point32f &normalize(){ 00116 float l = norm(); x/=l; y/=l; return *this; 00117 } 00118 00120 00121 Point32f normalized() const{ 00122 return Point32f(*this).normalize(); 00123 } 00124 00126 float &operator[](int i) { return i?y:x; } 00127 00129 const float &operator[](int i) const { return i?y:x; } 00130 }; 00131 00133 std::ostream &operator<<(std::ostream &s, const Point32f &p); 00134 00136 std::istream &operator>>(std::istream &s, Point32f &p); 00137 00138 00139 } // namespace utils 00140 } // namespace icl 00141