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) 2007-2009 Soeren Sonnenburg 00008 * Copyright (C) 2007-2009 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/SimpleFeatures.h" 00017 00041 class CEuclidianDistance: public CRealDistance 00042 { 00043 public: 00045 CEuclidianDistance(); 00046 00052 CEuclidianDistance(CSimpleFeatures<float64_t>* l, CSimpleFeatures<float64_t>* r); 00053 virtual ~CEuclidianDistance(); 00054 00061 virtual bool init(CFeatures* l, CFeatures* r); 00062 00064 virtual void cleanup(); 00065 00071 virtual bool load_init(FILE* src); 00072 00078 virtual bool save_init(FILE* dest); 00079 00084 virtual EDistanceType get_distance_type() { return D_EUCLIDIAN; } 00085 00090 inline virtual EFeatureType get_feature_type() { return F_DREAL; } 00091 00096 virtual const char* get_name() const { return "Euclidian"; } 00097 00103 virtual bool get_disable_sqrt() { return disable_sqrt; }; 00104 00110 virtual void set_disable_sqrt(bool state) { disable_sqrt=state; }; 00111 00112 protected: 00116 virtual float64_t compute(int32_t idx_a, int32_t idx_b); 00117 /* compute_kernel*/ 00118 00119 protected: 00121 float64_t scale; 00123 bool disable_sqrt; 00124 }; 00125 00126 #endif /* _EUCLIDIANDISTANCE_H__ */