From d63b1a82098072ba27607efdd6d5d06884eecec2 Mon Sep 17 00:00:00 2001 From: iridiumR Date: Tue, 22 Mar 2022 15:57:58 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B4=BE=E7=94=9F=E4=BF=AE=E6=94=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- SoftwareDesign/Code/inc/matrix.hpp | 632 +++++++++++++++-------------- 1 file changed, 321 insertions(+), 311 deletions(-) mode change 100644 => 100755 SoftwareDesign/Code/inc/matrix.hpp diff --git a/SoftwareDesign/Code/inc/matrix.hpp b/SoftwareDesign/Code/inc/matrix.hpp old mode 100644 new mode 100755 index 4243d8a..1f12f70 --- a/SoftwareDesign/Code/inc/matrix.hpp +++ b/SoftwareDesign/Code/inc/matrix.hpp @@ -1,312 +1,322 @@ -/* - * @Author: iR - * @Date: 2022-03-11 16:44:46 - * @LastEditors: iR - * @LastEditTime: 2022-03-12 17:25:28 - * @FilePath: \Code\inc\matrix.hpp - * @Description: - * - * Copyright (c) 2022 by iR, All Rights Reserved. - */ -#ifndef _MATRIX_HPP_ -#define _MATRIX_HPP_ - -#include -#include - -#include "../inc/vector.hpp" - -template -class Matrix -{ -private: - int _height; - int _width; - Vector *_mat; - -protected: -public: - ~Matrix() - { - delete _mat; - } - /** - * @description: 极度缺省初始化, 大小为2*2, 初值为0 - * @param {int} w - * @param {int} h - */ - Matrix(); - /** - * @description: 缺省初始化，初值为0 - * @param {int} w - * @param {int} h - */ - Matrix(int w, int h); - - /** - * @description: 以相同值初始化矩阵元素 - * @param {int} w - * @param {int} h - * @param {T} init_value - */ - Matrix(int w, int h, T init_value); - - /** - * @description: 以顺序访问数组的值初始化矩阵元素 - * 必须给出正确的数组,因为在函数内无法判定数组是否正确 - * @param {int} w - * @param {int} h - * @param {const T} elements[] - */ - Matrix(int w, int h, const T elements[]); - - // /** - // * @description: 以顺序访问指针的值初始化矩阵元素 - // * @note: 必须给出正确的数组,因为在函数内无法判定数组是否正确 - // * @param {int} w - // * @param {int} h - // * @param {T*} data - // */ - // Matrix(int w, int h, T *data); - - /** - * @description: 以另一个矩阵初始化当前矩阵的元素，实际是元素拷贝 - * @param {Matrix} &another - */ - Matrix(const Matrix &another); - - /** - * @description: 只读访问内容 - * @param {int} w - * @param {int} h - * @return {*} - */ - const T get(int w, int h) const; - - /** - * @description: []运算符重载 - */ - const T operator[](int i) const { return _mat->get(i); } - - /** - * @description: =运算符重载 - */ - T operator=(const Matrix &b); - - /** - * @description: +=运算符重载 - * @note: 即 a += b，其中*this即为a - * @param {*} - * @return None - */ - void operator+=(const Matrix &b); - - /** - * @description: +=运算符重载 - * @note:即 c = a + b，其中*this即为a，返回值即为c - * @param {*} - * @return None - */ - Matrix operator+(const Matrix &b) const; - - /** - * @description: 可读可写访问 - * @param {int} w - * @param {int} h - * @return {*} - */ - T &at(int w, int h) - { - T &ref = _mat->get(h * _width + w); - return ref; - } - - /** - * @description: 只读引用访问 - * @param {int} w - * @param {int} h - * @return {*} - */ - const T &at(int w, int h) const - { - T &ref = _mat->get(h * _width + w); - return ref; - } - - const int getWidth() const { return _width; } - const int getHeight() const { return _height; } -}; - -template -Matrix::Matrix() -{ - _width = 2; - _height = 2; - _mat = new Vector(2 * 2, 0); -} - -template -Matrix::Matrix(int w, int h) -{ - _width = w; - _height = h; - _mat = new Vector(w * h, 0); -} - -template -Matrix::Matrix(int w, int h, T init_value) -{ - _width = w; - _height = h; - _mat = new Vector(w * h, init_value); -} - -template -Matrix::Matrix(int w, int h, const T elements[]) -{ - int size = w * h; - try - { - //实际上似乎并不能在这里判断数组是否合法 - // if (w * h > size) - // throw "Error: The number of array elements is less than the matrix elements.\n"; - // if (w * h < size) - // throw "Error: The number of array elements is greater than the matrix elements.\n"; - - _width = w; - _height = h; - _mat = new Vector(w * h); - for (int i = 0; i < size; i++) - _mat->put(i, elements[i]); - } - catch (const char *msg) - { - std::cout << msg << "SIZE:" << size << std::endl; - ; - } -} - -//这个方法似乎有问题 -// template -// Matrix::Matrix(int w, int h, T *data) -// { -// int size = w * h; -// try -// { -// //实际上似乎并不能在这里判断数组是否合法 -// // if (w * h > size) -// // throw "Error: The number of array elements is less than the matrix elements.\n"; -// // if (w * h < size) -// // throw "Error: The number of array elements is greater than the matrix elements.\n"; -// if (data == NULL) -// throw 1; -// _width = w; -// _height = h; -// _mat = new Vector; -// for (int i = 0; i < size; i++) -// _mat->put(i, *(data+i)); -// } - -// catch (const int a) -// { -// if (a == 1) -// { -// std::cout << "Error: Empty array. Set elements to 0." << std::endl; -// for (int i = 0; i < size; i++) -// _mat->put(i, 0); -// } -// } -// } - -template -Matrix::Matrix(const Matrix &another) -{ - try - { - _width = another.getWidth(); - _height = another.getHeight(); - _mat = new Vector; - for (int i = 0; i < _width * _height; i++) - _mat->put(i, another[i]); - } - catch (const char *msg) - { - std::cout << msg; - } -} - -template -T Matrix::operator=(const Matrix &another) -{ - try - { - _width = another.getWidth(); - _height = another.getHeight(); - _mat = new Vector; - for (int i = 0; i < _width * _height; i++) - _mat->put(i, another[i]); - } - catch (const char *msg) - { - std::cout << msg; - } -} - -template -const T Matrix::get(int w, int h) const -{ - return _mat->get(h * _width + w); -} - -template -void Matrix::operator+=(const Matrix &b) -{ - try - { - if (this->_height == b.getHeight() && this->_width == b.getWidth()) - { - for (int i = 0; i < _width * _height; i++) - this->_mat->put(i, (*this)[i] + b[i]); - - return; - } - throw "Error: Different size."; - } - catch (const char *msg) - { - std::cout << msg; - } -} - -/** - * @description: +=运算符重载 - * @note:即 c = a + b，其中*this即为a，返回值即为c - * @param {*} - * @return None - */ -template -Matrix Matrix::operator+(const Matrix &b) const -{ - int h = this->_height; - int w = this->_width; - try - { - if (h == b.getHeight() && w == b.getWidth()) - { - Matrix temp(w, h, T(0)); - temp += *this; - temp += b; - return temp; - } - - throw "Error: Different size."; - } - catch (const char *msg) - { - std::cout << msg; - Matrix temp(w, h, T(0)); - return temp; - } -} - +/* + * @Author: iR + * @Date: 2022-03-11 16:44:46 + * @LastEditors: iR + * @LastEditTime: 2022-03-15 17:02:42 + * @FilePath: \Code\inc\matrix.hpp + * @Description: + * + * Copyright (c) 2022 by iR, All Rights Reserved. + */ +#ifndef _MATRIX_HPP_ +#define _MATRIX_HPP_ + +#include +#include + +#include "../inc/vector.hpp" + +template +class MatBase +{ // 定义基类，其中包含了矩阵元素读取的纯虚函数 +public: + virtual T &at(int y, int x) = 0; // 定义纯虚函数 + virtual const T &at(int y, int x) const = 0; // 定义纯虚函数 +}; + +template +class Matrix : public MatBase +{ +private: + int _height; + int _width; + Vector *_mat; + +protected: +public: + ~Matrix() + { + delete _mat; + } + /** + * @description: 极度缺省初始化, 大小为2*2, 初值为0 + * @param {int} w + * @param {int} h + */ + Matrix(); + /** + * @description: 缺省初始化，初值为0 + * @param {int} w + * @param {int} h + */ + Matrix(int w, int h); + + /** + * @description: 以相同值初始化矩阵元素 + * @param {int} w + * @param {int} h + * @param {T} init_value + */ + Matrix(int w, int h, T init_value); + + /** + * @description: 以顺序访问数组的值初始化矩阵元素 + * 必须给出正确的数组,因为在函数内无法判定数组是否正确 + * @param {int} w + * @param {int} h + * @param {const T} elements[] + */ + Matrix(int w, int h, const T elements[]); + + // /** + // * @description: 以顺序访问指针的值初始化矩阵元素 + // * @note: 必须给出正确的数组,因为在函数内无法判定数组是否正确 + // * @param {int} w + // * @param {int} h + // * @param {T*} data + // */ + // Matrix(int w, int h, T *data); + + /** + * @description: 以另一个矩阵初始化当前矩阵的元素，实际是元素拷贝 + * @param {Matrix} &another + */ + Matrix(const Matrix &another); + + /** + * @description: 只读访问内容 + * @param {int} w + * @param {int} h + * @return {*} + */ + const T get(int w, int h) const; + + /** + * @description: []运算符重载 + */ + const T operator[](int i) const { return _mat->get(i); } + + /** + * @description: =运算符重载 + */ + void operator=(const Matrix &b); + + /** + * @description: +=运算符重载 + * @note: 即 a += b，其中*this即为a + * @param {*} + * @return None + */ + void operator+=(const Matrix &b); + void operator+=(T &a) + { + for (int i = 0; i < _width * _height;i++) + { + _mat[i] = a; + } + } + + /** + * @description: +=运算符重载 + * @note:即 c = a + b，其中*this即为a，返回值即为c + * @param {*} + * @return None + */ + Matrix operator+(const Matrix &b) const; + + /** + * @description: 可读可写访问 + * @param {int} w + * @param {int} h + * @return {*} + */ + T &at(int w, int h) + { + T &ref = _mat->get(h * _width + w); + return ref; + } + + /** + * @description: 只读引用访问 + * @param {int} w + * @param {int} h + * @return {*} + */ + const T &at(int w, int h) const + { + T &ref = _mat->get(h * _width + w); + return ref; + } + + const int getWidth() const { return _width; } + const int getHeight() const { return _height; } +}; + +template +Matrix::Matrix() +{ + _width = 2; + _height = 2; + _mat = new Vector(2 * 2, 0); +} + +template +Matrix::Matrix(int w, int h) +{ + _width = w; + _height = h; + _mat = new Vector(w * h, 0); +} + +template +Matrix::Matrix(int w, int h, T init_value) +{ + _width = w; + _height = h; + _mat = new Vector(w * h, init_value); +} + +template +Matrix::Matrix(int w, int h, const T elements[]) +{ + int size = w * h; + try + { + //实际上似乎并不能在这里判断数组是否合法 + // if (w * h > size) + // throw "Error: The number of array elements is less than the matrix elements.\n"; + // if (w * h < size) + // throw "Error: The number of array elements is greater than the matrix elements.\n"; + + _width = w; + _height = h; + _mat = new Vector(w * h); + for (int i = 0; i < size; i++) + _mat->put(i, elements[i]); + } + catch (const char *msg) + { + std::cout << msg << "SIZE:" << size << std::endl; + ; + } +} + +//这个方法似乎有问题 +// template +// Matrix::Matrix(int w, int h, T *data) +// { +// int size = w * h; +// try +// { +// //实际上似乎并不能在这里判断数组是否合法 +// // if (w * h > size) +// // throw "Error: The number of array elements is less than the matrix elements.\n"; +// // if (w * h < size) +// // throw "Error: The number of array elements is greater than the matrix elements.\n"; +// if (data == NULL) +// throw 1; +// _width = w; +// _height = h; +// _mat = new Vector; +// for (int i = 0; i < size; i++) +// _mat->put(i, *(data+i)); +// } + +// catch (const int a) +// { +// if (a == 1) +// { +// std::cout << "Error: Empty array. Set elements to 0." << std::endl; +// for (int i = 0; i < size; i++) +// _mat->put(i, 0); +// } +// } +// } + +template +Matrix::Matrix(const Matrix &another) +{ + try + { + _width = another.getWidth(); + _height = another.getHeight(); + _mat = new Vector; + for (int i = 0; i < _width * _height; i++) + _mat->put(i, another[i]); + } + catch (const char *msg) + { + std::cout << msg; + } +} + +template +void Matrix::operator=(const Matrix &another) +{ + try + { + _width = another.getWidth(); + _height = another.getHeight(); + _mat = new Vector; + for (int i = 0; i < _width * _height; i++) + _mat->put(i, another[i]); + + } + catch (const char *msg) + { + std::cout << msg; + } +} + +template +const T Matrix::get(int w, int h) const +{ + return _mat->get(h * _width + w); +} + +template +void Matrix::operator+=(const Matrix &b) +{ + try + { + if (this->_height == b.getHeight() && this->_width == b.getWidth()) + { + for (int i = 0; i < _width * _height; i++) + this->_mat->put(i, (*this)[i] + b[i]); + + return; + } + throw "Error: Different size."; + } + catch (const char *msg) + { + std::cout << msg; + } +} + +template +Matrix Matrix::operator+(const Matrix &b) const +{ + int h = this->_height; + int w = this->_width; + try + { + if (h == b.getHeight() && w == b.getWidth()) + { + Matrix temp(w, h, T(0)); + temp += *this; + temp += b; + return temp; + } + + throw "Error: Different size."; + } + catch (const char *msg) + { + std::cout << msg; + Matrix temp(w, h, T(0)); + return temp; + } +} + #endif \ No newline at end of file