00001 /* 00002 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG) 00003 * UNIVERSITAT POMPEU FABRA 00004 * 00005 * 00006 * This program is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; either version 2 of the License, or 00009 * (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00019 * 00020 */ 00021 00022 00023 #ifndef _PolarTmplDec_ 00024 #define _PolarTmplDec_ 00025 00026 #include <iosfwd> 00027 #include "CLAM_Math.hxx" 00028 00029 namespace CLAM 00030 { 00031 00032 template <class T> 00033 class PolarTmpl 00034 { 00035 private: 00036 T mMag, mAng; 00037 00038 public: 00039 PolarTmpl(T mag = 0.0,T ang = 0.0)// constructor 00040 { 00041 mMag = mag; 00042 mAng = ang; 00043 }; 00044 00045 const T Mag(void) const {return mMag;}; // accessor 00046 const T Ang(void) const {return mAng;}; // accessor 00047 00048 void SetMag(const T& mag) { mMag = mag;}; // accesor 00049 void SetAng(const T& ang) { mAng = ang;}; // accesor 00050 00051 // returns real part 00052 const T Real (void) const 00053 { 00054 return fabs(mMag) * CLAM_cos(mAng); 00055 } 00056 00057 // returns imaginary part 00058 const T Imag (void) const 00059 { 00060 return fabs(mMag) * CLAM_sin(mAng); 00061 } 00062 00063 // friend function to handle cartesian coordinates 00064 friend PolarTmpl<T> ToComplex(const T& real, const T& imag) 00065 { 00066 return PolarTmpl<T> (CLAM_sqrt (real*real + imag*imag),CLAM_atan2 (imag,real)); 00067 }; 00068 00069 // ------ member operators ... ------ 00070 // complex '=' operator (float) 00071 const PolarTmpl<T>& operator = (const float mag) 00072 { 00073 mMag = mag; 00074 mAng = 0; 00075 return *this; 00076 } 00077 00078 // complex '=' operator 00079 const PolarTmpl<T>& operator = (const PolarTmpl<T>& a) 00080 { 00081 mMag = a.mMag; 00082 mAng = a.mAng; 00083 return *this; 00084 00085 } 00086 00087 // complex '+=' operator 00088 const PolarTmpl<T>& operator += (const PolarTmpl<T>& a); 00089 00090 // complex '-=' operator 00091 const PolarTmpl<T>& operator -= (const PolarTmpl<T>& a); 00092 00093 // polar '-' operator 00094 PolarTmpl<T> operator - (const PolarTmpl<T>& b) const; 00095 00096 // polar '+' operator 00097 PolarTmpl<T> operator + (const PolarTmpl<T>& b) const; 00098 00099 // complex '*' operator 00100 PolarTmpl<T> operator * (const PolarTmpl<T>& b) const 00101 { 00102 PolarTmpl<T> ret(mMag * b.mMag,mAng + b.mAng); 00103 return ret; 00104 } 00105 00106 // complex '/' operator 00107 PolarTmpl<T> operator / (const PolarTmpl<T>& b) const 00108 { 00109 PolarTmpl<T> ret(mMag / b.mMag,mAng - b.mAng); 00110 return ret; 00111 } 00112 00113 // complex '==' operator 00114 bool operator == (const PolarTmpl<T>& b) const 00115 { 00116 if ((mMag == b.mMag)&&(mAng == b.mAng)) return true; 00117 else return false; 00118 } 00119 00120 // polar '!=' operator 00121 bool operator != (const PolarTmpl<T>& b) const 00122 { 00123 if ((mMag == b.mMag)&&(mAng == b.mAng)) return false; 00124 else return true; 00125 } 00126 00127 }; 00128 00129 template <class T> 00130 std::istream& operator >> (std::istream & stream, PolarTmpl<T> & a); 00131 00132 template <class T> 00133 std::ostream& operator << (std::ostream & stream, const PolarTmpl<T> & a); 00134 00135 } // namespace CLAM 00136 00137 #endif // _PolarTmplDec_ 00138
1.6.3