104 lines
3.8 KiB
C++
104 lines
3.8 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) 2022 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 "gctl/core.h"
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#include "gctl/io.h"
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#include "gctl/seismic.h"
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using namespace gctl;
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int main(int argc, char const *argv[])
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{
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try
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{
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std::string mesh_file = "../data/fmm2d/sample_mesh.1";
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std::string mod_file = "../data/fmm2d/sample_model.txt";
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// read triangular mesh's vertice and elements
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array<vertex2dc> mesh_node;
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array<triangle2d> mesh_ele;
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array<int> node_boundary;
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read_Triangle_node(mesh_file, mesh_node, gctl::Packed, &node_boundary);
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read_Triangle_element(mesh_file, mesh_ele, mesh_node);
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array<fmm_vertex2dc> fmm_node;
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array<fmm_triangle2d> fmm_ele;
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array<double> node_time(mesh_node.size(), GCTL_BDL_MAX);
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// save to gmsh file
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std::ofstream outfile;
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open_outfile(outfile, mesh_file, ".msh");
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save2gmsh(outfile, mesh_ele, mesh_node, gctl::NotPacked);
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array<double> mesh_slow;
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text_descriptor desc;
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desc.head_num_ = 1;
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get_data_column(mod_file, {&mesh_slow}, {1}, desc);
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create_fmm_mesh(mesh_node, mesh_ele, node_time, mesh_slow, fmm_node, fmm_ele);
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for (int i = 0; i < fmm_node.size(); i++)
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{
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if (node_boundary[i] && fabs(mesh_node[i].x) < 1e-6 )
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{
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*fmm_node.at(i).time_ptr = 0.0;
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fmm_node.at(i).tag = 2;
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}
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}
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array<double> tmp_jn(fmm_ele.size());
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sparray2d<double> jn(fmm_node.size(), fmm_ele.size(), 0.0);
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std::vector<fmm_vertex2dc*> wave_front;
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std::vector<fmm_vertex2dc*> march_record;
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clock_t start = clock();
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fmm2d_forward_triangle(&fmm_node, &fmm_ele, &wave_front, &march_record, nullptr, &jn, &tmp_jn);
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clock_t end = clock();
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std::cout << "FMM's time: " << 1000.0*(end - start)/(double)CLOCKS_PER_SEC << " ms" << std::endl;
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for (int i = 0; i < node_time.size(); i++)
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{
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if (node_time[i] == GCTL_BDL_MAX)
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{
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node_time[i] = NAN;
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}
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}
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array<double> node_grad(fmm_ele.size(), 0.0);
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jn.at(4451)->export_dense(node_grad);
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save_gmsh_data(outfile, "Arrival time", node_time.get(), node_time.size(), NodeData, gctl::NotPacked);
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save_gmsh_data(outfile, "Model gradient", node_grad.get(), node_grad.size(), ElemData, gctl::NotPacked);
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outfile.close();
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}
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catch(std::exception &e)
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{
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GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
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}
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return 0;
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}
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