/******************************************************** * ██████╗ ██████╗████████╗██╗ * ██╔════╝ ██╔════╝╚══██╔══╝██║ * ██║ ███╗██║ ██║ ██║ * ██║ ██║██║ ██║ ██║ * ╚██████╔╝╚██████╗ ██║ ███████╗ * ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝ * Geophysical Computational Tools & Library (GCTL) * * Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn) * * GCTL is distributed under a dual licensing scheme. You can redistribute * it and/or modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation, either version 2 * of the License, or (at your option) any later version. You should have * received a copy of the GNU Lesser General Public License along with this * program. If not, see . * * If the terms and conditions of the LGPL v.2. would prevent you from using * the GCTL, please consider the option to obtain a commercial license for a * fee. These licenses are offered by the GCTL's original author. As a rule, * licenses are provided "as-is", unlimited in time for a one time fee. Please * send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget * to include some description of your company and the realm of its activities. * Also add information on how to contact you by electronic and paper mail. ******************************************************/ #ifndef _GAUSSFUNC_H #define _GAUSSFUNC_H #include "../core/enum.h" #include "../core/macro.h" #include "../core/exceptions.h" namespace gctl { /** * @brief 一维高斯分布参数 */ struct gaussian_para1d { double mu; ///< 分布中心 double sigma; ///< 分布标准差 gaussian_para1d(); gaussian_para1d(double in_mu, double in_sigma); }; //正态函数参数组 struct gaussian_para2d { // 中心位置x y 标准差位置半径x y 绕x轴逆时针旋转的弧度 double mu_x, mu_y, sigma_x, sigma_y, rho; gaussian_para2d(); gaussian_para2d(double in_mux, double in_muy, double in_sigmax, double in_sigmay, double in_rho); }; /** * @brief 一维高斯分布值 * * @param[in] para 高斯分布参数 * @param[in] x 采样位置 * * @return 采样位置的概率值 */ double gaussian_dist1d(double x, const gaussian_para1d ¶, gradient_type_e mode = Value); /** * @brief 二维高斯分布,返回坐标位置的数值 * * @param[in] x x坐标 * @param[in] y y坐标 * @param[in] p 高斯分布参数 * @param[in] mode 计算模式(Value为分布值,Dx为x方向梯度,Dy为y方向梯度) * * @return 坐标位置的数值 */ double gaussian_dist2d(double x, double y, const gaussian_para2d &p, gradient_type_e mode = Value); } #endif // _GAUSSFUNC_H