EuclidianDistance.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) 2007-2008 Soeren Sonnenburg
00008  * Copyright (C) 2007-2008 Fraunhofer Institute FIRST and Max-Planck-Society
00009  */
00010 
00011 #ifndef _EUCLIDIANDISTANCE_H__
00012 #define _EUCLIDIANDISTANCE_H__
00013 
00014 #include "lib/common.h"
00015 #include "distance/RealDistance.h"
00016 #include "features/RealFeatures.h"
00017 
00019 class CEuclidianDistance: public CRealDistance
00020 {
00021     public:
00023         CEuclidianDistance();
00024 
00030         CEuclidianDistance(CRealFeatures* l, CRealFeatures* r);
00031         virtual ~CEuclidianDistance();
00032 
00039         virtual bool init(CFeatures* l, CFeatures* r);
00040 
00042         virtual void cleanup();
00043 
00049         virtual bool load_init(FILE* src);
00050 
00056         virtual bool save_init(FILE* dest);
00057 
00062         virtual EDistanceType get_distance_type() { return D_EUCLIDIAN; }
00063 
00068         inline virtual EFeatureType get_feature_type() { return F_DREAL; }
00069 
00074         virtual const CHAR* get_name() { return "Euclidian" ; } ;
00075 
00081         virtual bool get_disable_sqrt() { return disable_sqrt; };
00082 
00088         virtual void set_disable_sqrt(bool state) { disable_sqrt=state; };
00089 
00090     protected:
00094         virtual DREAL compute(INT idx_a, INT idx_b);
00095         /*    compute_kernel*/
00096 
00097     protected:
00099         double scale;
00101         bool disable_sqrt;
00102 };
00103 
00104 #endif /* _EUCLIDIANDISTANCE_H__ */

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