CanberraMetric.h

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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) 2006 Christian Gehl
00008  * Copyright (C) 1999-2008 Fraunhofer Institute FIRST
00009  */
00010 
00011 #ifndef _CANBERRAMETRIC_H__
00012 #define _CANBERRAMETRIC_H___
00013 
00014 #include "lib/common.h"
00015 #include "distance/SimpleDistance.h"
00016 #include "features/RealFeatures.h"
00017 
00031 class CCanberraMetric: public CSimpleDistance<float64_t>
00032 {
00033     public:
00035         CCanberraMetric();
00036 
00042         CCanberraMetric(CRealFeatures* l, CRealFeatures* r);
00043         virtual ~CCanberraMetric();
00044 
00051         virtual bool init(CFeatures* l, CFeatures* r);
00052 
00054         virtual void cleanup();
00055 
00061         virtual bool load_init(FILE* src);
00062 
00068         virtual bool save_init(FILE* dest);
00069 
00074         virtual EDistanceType get_distance_type() { return D_CANBERRA; }
00075 
00080         virtual const char* get_name() { return "Canberra-Metric"; }
00081 
00082     protected:
00086         virtual float64_t compute(int32_t idx_a, int32_t idx_b);
00087 };
00088 
00089 #endif /* _CANBERRAMETRIC_H__ */

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