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matrix.h
00001 /*********************************************************************** 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved. 00005 * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved. 00006 * 00007 * THE BSD LICENSE 00008 * 00009 * Redistribution and use in source and binary forms, with or without 00010 * modification, are permitted provided that the following conditions 00011 * are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright 00014 * notice, this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in the 00017 * documentation and/or other materials provided with the distribution. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 00020 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00021 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 00022 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 00023 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 00024 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00025 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00026 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 00028 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00029 *************************************************************************/ 00030 00031 #ifndef OPENCV_FLANN_DATASET_H_ 00032 #define OPENCV_FLANN_DATASET_H_ 00033 00034 #include <stdio.h> 00035 00036 #include "general.h" 00037 00038 namespace cvflann 00039 { 00040 00041 /** 00042 * Class that implements a simple rectangular matrix stored in a memory buffer and 00043 * provides convenient matrix-like access using the [] operators. 00044 */ 00045 template <typename T> 00046 class Matrix 00047 { 00048 public: 00049 typedef T type; 00050 00051 size_t rows; 00052 size_t cols; 00053 size_t stride; 00054 T* data; 00055 00056 Matrix() : rows(0), cols(0), stride(0), data(NULL) 00057 { 00058 } 00059 00060 Matrix(T* data_, size_t rows_, size_t cols_, size_t stride_ = 0) : 00061 rows(rows_), cols(cols_), stride(stride_), data(data_) 00062 { 00063 if (stride==0) stride = cols; 00064 } 00065 00066 /** 00067 * Convenience function for deallocating the storage data. 00068 */ 00069 FLANN_DEPRECATED void free() 00070 { 00071 fprintf(stderr, "The cvflann::Matrix<T>::free() method is deprecated " 00072 "and it does not do any memory deallocation any more. You are" 00073 "responsible for deallocating the matrix memory (by doing" 00074 "'delete[] matrix.data' for example)"); 00075 } 00076 00077 /** 00078 * Operator that return a (pointer to a) row of the data. 00079 */ 00080 T* operator[](size_t index) const 00081 { 00082 return data+index*stride; 00083 } 00084 }; 00085 00086 00087 class UntypedMatrix 00088 { 00089 public: 00090 size_t rows; 00091 size_t cols; 00092 void* data; 00093 flann_datatype_t type; 00094 00095 UntypedMatrix(void* data_, long rows_, long cols_) : 00096 rows(rows_), cols(cols_), data(data_) 00097 { 00098 } 00099 00100 ~UntypedMatrix() 00101 { 00102 } 00103 00104 00105 template<typename T> 00106 Matrix<T> as() 00107 { 00108 return Matrix<T>((T*)data, rows, cols); 00109 } 00110 }; 00111 00112 00113 00114 } 00115 00116 #endif //OPENCV_FLANN_DATASET_H_ 00117
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