110 lines
6.0 KiB
C
110 lines
6.0 KiB
C
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/********************************************************
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* ██████╗ ██████╗████████╗██╗
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* ██╔════╝ ██╔════╝╚══██╔══╝██║
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* ██║ ███╗██║ ██║ ██║
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* ██║ ██║██║ ██║ ██║
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* ╚██████╔╝╚██████╗ ██║ ███████╗
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* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
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* Geophysical Computational Tools & Library (GCTL)
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*
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* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
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*
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* GCTL is distributed under a dual licensing scheme. You can redistribute
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* it and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either version 2
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* of the License, or (at your option) any later version. You should have
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* received a copy of the GNU Lesser General Public License along with this
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* program. If not, see <http://www.gnu.org/licenses/>.
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*
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* If the terms and conditions of the LGPL v.2. would prevent you from using
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* the GCTL, please consider the option to obtain a commercial license for a
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* fee. These licenses are offered by the GCTL's original author. As a rule,
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* licenses are provided "as-is", unlimited in time for a one time fee. Please
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* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
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* to include some description of your company and the realm of its activities.
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* Also add information on how to contact you by electronic and paper mail.
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******************************************************/
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#ifndef _GCTL_EXTRAPOLATE_H
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#define _GCTL_EXTRAPOLATE_H
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#include "../core/array.h"
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#include "../core/matrix.h"
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#include "../maths/mathfunc_t.h"
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namespace gctl
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{
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/**
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* @brief 使用cosine函数对一维数组进行外插
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*
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* @param in_arr 输入数组
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* @param[in] in_num 数组长度
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* @param out_arr 输出数组
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* @param[in] out_num 数组长度
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* @param[in] end_value 外插后的端点值，若为NAN则函数会计算原数组端点值的均值作为新的端点值
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*/
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void cosine_extrapolate_1d(double *in_arr, int in_num, double *out_arr, int out_num, double end_value = NAN);
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/**
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* @brief 使用cosine函数对一维数组进行外插
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*
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* @param[in] in_arr 输入数组
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* @param out_arr 输出数组
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* @param[in] end_val 外插后的端点值，若输入值为NAN函数会计算原数组端点值的均值作为新的端点值
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* @param[in] out_len 外插后的数组长度，若输入值小于0函数会计算最小的2的次方值作为输出的数组长度
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*/
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void cosine_extrapolate_1d(const array<double> &in_arr, array<double> &out_arr, double end_val = NAN, int out_len = -1);
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/**
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* @brief 使用cosine函数对二维数组进行外插
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*
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* @param[in] in_arr 输入数组
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* @param out_arr 输出数组
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* @param ori_row 原数据在扩边后的起始行号
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* @param ori_col 原数据在扩边后的起始列号
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* @param[in] end_valx x方向外插后的端点值，若输入值为NAN函数会计算原数组端点值的均值作为新的端点值
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* @param[in] end_valy y方向外插后的端点值，若输入值为NAN函数会计算原数组端点值的均值作为新的端点值
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* @param[in] out_lenx x方向外插后的数组长度，若输入值小于0函数会计算最小的2的次方值作为输出的数组长度
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* @param[in] out_leny y方向外插后的数组长度，若输入值小于0函数会计算最小的2的次方值作为输出的数组长度
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*/
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void cosine_extrapolate_2d(const _2d_matrix &in_arr, _2d_matrix &out_arr,
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int &ori_row, int &ori_col, double end_valx = NAN, double end_valy = NAN, int out_lenx = -1, int out_leny = -1);
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/**
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* @brief 使用cosine函数对二维数组进行外插
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*
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* 按一维数组排列（列优先，按行排列）
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*
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* @param[in] in_arr 输入数组
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* @param out_arr 输出数组
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* @param[in] in_row 输入数组的行数
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* @param[in] in_col 输入数组的列数
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* @param out_row 输出数组的行数（如果输入值为负则函数会计算最小的2的次方值作为输出的行数，否则即按照输入值进行扩边）
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* @param out_col 输出数组的列数（如果输入值为负则函数会计算最小的2的次方值作为输出的行数，否则即按照输入值进行扩边）
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* @param ori_row 原数据在扩边后的起始行号
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* @param ori_col 原数据在扩边后的起始列号
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* @param[in] end_valx x方向外插后的端点值，若输入值为NAN函数会计算原数组端点值的均值作为新的端点值
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* @param[in] end_valy y方向外插后的端点值，若输入值为NAN函数会计算原数组端点值的均值作为新的端点值
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*/
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void cosine_extrapolate_2d(const array<double> &in_arr, array<double> &out_arr, int in_row, int in_col,
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int &out_row, int &out_col, int &ori_row, int &ori_col, double end_valx = NAN, double end_valy = NAN);
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/**
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* @brief 使用零值对二维数组进行外插
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*
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* 按一维数组排列（列优先，按行排列）
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*
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* @param[in] in_arr 输入数组
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* @param out_arr 输出数组
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* @param[in] in_row 输入数组的行数
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* @param[in] in_col 输入数组的列数
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* @param out_row 输出数组的行数（如果输入值为负则函数会计算最小的2的次方值作为输出的行数，否则即按照输入值进行扩边）
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* @param out_col 输出数组的列数（如果输入值为负则函数会计算最小的2的次方值作为输出的行数，否则即按照输入值进行扩边）
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* @param ori_row 原数据在扩边后的起始行号
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* @param ori_col 原数据在扩边后的起始列号
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*/
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void zeros_extrapolate_2d(const array<double> &in_arr, array<double> &out_arr, int in_row, int in_col,
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int &out_row, int &out_col, int &ori_row, int &ori_col);
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}
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#endif // _GCTL_EXTRAPOLATE_H
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