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__ */