283 lines
8.2 KiB
C++
283 lines
8.2 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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* 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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#include "linear_mesh_2d.h"
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void gctl::linear_mesh_2d::init(std::string in_name, std::string in_info, double xmin, double ymin,
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const gctl::array<double> &xsizes, const gctl::array<double> &ysizes)
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{
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check_initiated(true); // 检查网格是否已经初始化
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base_mesh::init(LINEAR_MESH, MESH_2D, in_name, in_info);
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lm_xmin = xmin;
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lm_ymin = ymin;
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lm_xbnum = xsizes.size();
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lm_ybnum = ysizes.size();
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lm_xsizes.resize(lm_xbnum);
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lm_ysizes.resize(lm_ybnum);
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node_num_ = (lm_xbnum+1) * (lm_ybnum+1);
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ele_num_ = lm_xbnum * lm_ybnum;
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for (int i = 0; i < lm_xbnum; i++)
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{
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lm_xsizes[i] = xsizes[i];
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}
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for (int i = 0; i < lm_ybnum; i++)
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{
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lm_ysizes[i] = ysizes[i];
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}
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nodes.resize(node_num_);
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elements.resize(ele_num_);
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double x_p, y_p = lm_ymin - 0.5*lm_ysizes[0];
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for (int j = 0; j < lm_ybnum+1; j++)
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{
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x_p = lm_xmin - 0.5*lm_xsizes[0];
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for (int i = 0; i < lm_xbnum+1; i++)
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{
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nodes[i+j*(lm_xbnum+1)].id = i+j*(lm_xbnum+1);
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nodes[i+j*(lm_xbnum+1)].x = x_p;
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nodes[i+j*(lm_xbnum+1)].y = y_p;
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if (i < lm_xbnum) x_p += lm_xsizes[i];
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}
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if (j < lm_ybnum) y_p += lm_ysizes[j];
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}
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for (int j = 0; j < lm_ybnum; j++)
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{
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for (int i = 0; i < lm_xbnum; i++)
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{
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elements[i+j*lm_xbnum].id = i+j*lm_xbnum;
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elements[i+j*lm_xbnum].vert[0] = nodes.get(i+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[1] = nodes.get(i+1+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[2] = nodes.get(i+1+(j+1)*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[3] = nodes.get(i+(j+1)*(lm_xbnum+1));
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elements[i+j*lm_xbnum].dl = nodes.get(i+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].ur = nodes.get(i+1+(j+1)*(lm_xbnum+1));
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}
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}
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initialized_ = true;
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return;
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}
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void gctl::linear_mesh_2d::show_mesh_dimension(std::ostream &os) const
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{
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os << "node num: " << node_num_ << std::endl;
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os << "elem num: " << ele_num_ << std::endl;
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os << "x-range: " << get_xmin() << " -> " << get_xmax() << "\n";
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os << "y-range: " << get_ymin() << " -> " << get_ymax() << "\n";
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os << "dimension: " << lm_xbnum << ", " << lm_ybnum << "\n";
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return;
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}
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void gctl::linear_mesh_2d::load_binary(std::string filename)
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{
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check_initiated(true); // 检查网格是否已经初始化
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std::ifstream infile;
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gctl::open_infile(infile, filename, ".2m", std::ios::in|std::ios::binary);
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// 读入网格头信息
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load_headinfo(infile, LINEAR_MESH, MESH_2D);
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// 读入网格信息
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infile.read((char*)&lm_xbnum, sizeof(int));
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infile.read((char*)&lm_ybnum, sizeof(int));
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infile.read((char*)&lm_xmin, sizeof(double));
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infile.read((char*)&lm_ymin, sizeof(double));
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lm_xsizes.resize(lm_xbnum);
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lm_ysizes.resize(lm_ybnum);
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node_num_ = (lm_xbnum+1) * (lm_ybnum+1);
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ele_num_ = lm_xbnum * lm_ybnum;
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for (int i = 0; i < lm_xbnum; i++)
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{
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infile.read((char*)lm_xsizes.get(i), sizeof(double));
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}
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for (int i = 0; i < lm_ybnum; i++)
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{
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infile.read((char*)lm_ysizes.get(i), sizeof(double));
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}
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nodes.resize(node_num_);
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elements.resize(ele_num_);
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double x_p, y_p = lm_ymin - 0.5*lm_ysizes[0];
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for (int j = 0; j < lm_ybnum+1; j++)
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{
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x_p = lm_xmin - 0.5*lm_xsizes[0];
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for (int i = 0; i < lm_xbnum+1; i++)
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{
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nodes[i+j*(lm_xbnum+1)].id = i+j*(lm_xbnum+1);
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nodes[i+j*(lm_xbnum+1)].x = x_p;
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nodes[i+j*(lm_xbnum+1)].y = y_p;
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if (i < lm_xbnum) x_p += lm_xsizes[i];
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}
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if (j < lm_ybnum) y_p += lm_ysizes[j];
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}
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for (int j = 0; j < lm_ybnum; j++)
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{
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for (int i = 0; i < lm_xbnum; i++)
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{
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elements[i+j*lm_xbnum].id = i+j*lm_xbnum;
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elements[i+j*lm_xbnum].vert[0] = nodes.get(i+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[1] = nodes.get(i+1+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[2] = nodes.get(i+1+(j+1)*(lm_xbnum+1));
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elements[i+j*lm_xbnum].vert[3] = nodes.get(i+(j+1)*(lm_xbnum+1));
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elements[i+j*lm_xbnum].dl = nodes.get(i+j*(lm_xbnum+1));
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elements[i+j*lm_xbnum].ur = nodes.get(i+1+(j+1)*(lm_xbnum+1));
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}
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}
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initialized_ = true;
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// 读入模型数据单元
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load_datablock(infile);
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infile.close();
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return;
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}
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void gctl::linear_mesh_2d::save_binary(std::string filename)
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{
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check_initiated(); // 检查网格是否已经初始化
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std::ofstream outfile;
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gctl::open_outfile(outfile, filename, ".2m", std::ios::out|std::ios::binary);
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// 首先输出网格的头信息
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save_headinfo(outfile);
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// 输出网格信息
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outfile.write((char*)&lm_xbnum, sizeof(int));
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outfile.write((char*)&lm_ybnum, sizeof(int));
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outfile.write((char*)&lm_xmin, sizeof(double));
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outfile.write((char*)&lm_ymin, sizeof(double));
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for (int i = 0; i < lm_xbnum; i++)
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{
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outfile.write((char*)lm_xsizes.get(i), sizeof(double));
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}
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for (int i = 0; i < lm_ybnum; i++)
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{
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outfile.write((char*)lm_ysizes.get(i), sizeof(double));
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}
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// 输出的模型数据单元
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save_datablock(outfile);
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outfile.close();
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return;
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}
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gctl::linear_mesh_2d::linear_mesh_2d() : base_mesh::base_mesh(){}
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gctl::linear_mesh_2d::linear_mesh_2d(std::string in_name, std::string in_info, double xmin, double ymin,
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const gctl::array<double> &xsizes, const gctl::array<double> &ysizes)
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{
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init(in_name, in_info, xmin, ymin, xsizes, ysizes);
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}
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gctl::linear_mesh_2d::~linear_mesh_2d(){}
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int gctl::linear_mesh_2d::get_xbnum() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return lm_xbnum;
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}
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int gctl::linear_mesh_2d::get_ybnum() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return lm_ybnum;
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}
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double gctl::linear_mesh_2d::get_xmin() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return lm_xmin;
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}
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double gctl::linear_mesh_2d::get_ymin() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return lm_ymin;
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}
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double gctl::linear_mesh_2d::get_xmax() const
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{
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check_initiated(); // 检查网格是否已经初始化
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double xmax = lm_xmin - 0.5*lm_xsizes[0];
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for (size_t i = 0; i < lm_xsizes.size(); i++)
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{
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xmax += lm_xsizes[i];
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}
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xmax -= 0.5*lm_xsizes.back();
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return xmax;
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}
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double gctl::linear_mesh_2d::get_ymax() const
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{
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check_initiated(); // 检查网格是否已经初始化
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double ymax = lm_ymin - 0.5*lm_ysizes[0];
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for (size_t i = 0; i < lm_ysizes.size(); i++)
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{
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ymax += lm_ysizes[i];
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}
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ymax -= 0.5*lm_ysizes.back();
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return ymax;
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}
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const gctl::array<double> *gctl::linear_mesh_2d::get_xsizes() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return &lm_xsizes;
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}
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const gctl::array<double> *gctl::linear_mesh_2d::get_ysizes() const
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{
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check_initiated(); // 检查网格是否已经初始化
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return &lm_ysizes;
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}
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void gctl::linear_mesh_2d::save_gmsh(std::string filename, index_packed_e packed)
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{
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meshio_.init_file(filename, Output);
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meshio_.set_packed(packed, Output);
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meshio_.save_mesh(elements, nodes);
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return;
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} |