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) 1999-2009 Soeren Sonnenburg 00008 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _DIAGKERNEL_H___ 00012 #define _DIAGKERNEL_H___ 00013 00014 #include "lib/common.h" 00015 #include "kernel/Kernel.h" 00016 00024 class CDiagKernel: public CKernel 00025 { 00026 public: 00032 CDiagKernel(int32_t size, float64_t diag=1.0); 00033 00040 CDiagKernel(CFeatures* l, CFeatures* r, float64_t diag=1.0); 00041 00042 virtual ~CDiagKernel(); 00043 00049 virtual bool load_init(FILE* src); 00050 00056 virtual bool save_init(FILE* dest); 00057 00062 inline virtual EFeatureType get_feature_type() 00063 { 00064 return F_ANY; 00065 } 00066 00071 inline virtual EFeatureClass get_feature_class() 00072 { 00073 return C_ANY; 00074 } 00075 00080 virtual EKernelType get_kernel_type() { return K_DIAG; } 00081 00086 virtual const char* get_name() const { return "Diagonal"; } 00087 00088 protected: 00097 inline virtual float64_t compute(int32_t idx_a, int32_t idx_b) 00098 { 00099 if (idx_a==idx_b) 00100 return diag; 00101 else 00102 return 0; 00103 } 00104 00105 protected: 00107 float64_t diag; 00108 }; 00109 00110 #endif /* _DIAGKERNEL_H__ */