00001 /* 00002 * This program is free software; you can redistribute it and/or modify 00003 * it under the terms of the GNU General Public License as published by 00004 * the Free Software Foundation; either version 3 of the License, or 00005 * (at your option) any later version. 00006 * 00007 * Written (W) 2008 Christian Gehl 00008 * Copyright (C) 2008 Fraunhofer Institute FIRST 00009 */ 00010 00011 #ifndef _BRAYCURTISDISTANCE_H___ 00012 #define _BRAYCURTISDISTANCE_H___ 00013 00014 #include "lib/common.h" 00015 #include "distance/SimpleDistance.h" 00016 #include "features/RealFeatures.h" 00017 00029 class CBrayCurtisDistance: public CSimpleDistance<float64_t> 00030 { 00031 public: 00033 CBrayCurtisDistance(); 00034 00040 CBrayCurtisDistance(CRealFeatures* l, CRealFeatures* r); 00041 virtual ~CBrayCurtisDistance(); 00042 00049 virtual bool init(CFeatures* l, CFeatures* r); 00050 00052 virtual void cleanup(); 00053 00059 virtual bool load_init(FILE* src); 00060 00066 virtual bool save_init(FILE* dest); 00067 00072 virtual EDistanceType get_distance_type() { return D_BRAYCURTIS; } 00073 00078 virtual const char* get_name() { return "Bray-Curtis distance"; } 00079 00080 protected: 00084 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00085 }; 00086 00087 #endif /* _BRAYCURTISDISTANCE_H___ */