gctl_mesh/example/meshio_ex.cpp
2025-04-23 21:55:30 +08:00

109 lines
4.2 KiB
C++

/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* 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 <http://www.gnu.org/licenses/>.
*
* 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.
******************************************************/
#include "../lib/mesh/mesh_io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mesh_io mshio;
mshio.read_gmsh_v2_ascii("tmp/test");
mshio.info();
array<vertex3dc> nodes;
array<triangle> tris;
mshio.select_elements("Bz (pT)", NodeData);
mshio.export_selected_to(tris, nodes);
//meshio_data &d = mshio.get_data("Bz (pT)", NodeData);
//array<double> dat = d.val;
array<double> dat1 = mshio.get_selected_data("Bx (pT)", NodeData);
array<double> dat2 = mshio.get_selected_data("By (pT)", NodeData);
array<double> dat3 = mshio.get_selected_data("Bz (pT)", NodeData);
mesh_io mshio2;
mshio2.import_from(tris, nodes);
mshio2.add_data("Bx (pT)", dat1, NodeData, OverWrite);
mshio2.add_data("By (pT)", dat2, NodeData, OverWrite);
mshio2.add_data("Bz (pT)", dat3, NodeData, OverWrite);
mshio2.save_gmsh_v2_ascii("tmp");
mshio2.info();
/*
mshio.read_tetgen_ascii("tmp/ex1.1");
mshio.edit_group(Disable, GeometryTag, 5);
mshio.edit_group(GeometryTag, 1, PhysicalTag, 1);
mshio.edit_group(GeometryTag, 2, PhysicalTag, 2);
mshio.edit_group(GeometryTag, 3, PhysicalTag, 3);
mshio.edit_group(GeometryTag, 4, PhysicalTag, 4);
mshio.edit_group(GeometryTag, 1, "Boundary");
mshio.edit_group(GeometryTag, 2, "Body1");
mshio.edit_group(GeometryTag, 3, "Body2");
mshio.edit_group(GeometryTag, 4, "Body3");
mshio.save_gmsh_v2_ascii("tmp/ex1.1");
*/
/*
mshio.read_gmsh_v2_ascii("tmp/ex1.1");
mshio.convert_tags_to_data(GeometryTag);
array<double> body_val(mshio.element_size("Body2"), 2.0);
mshio.add_element_data("BodyValue", "Body2", body_val);
array<double> body_val2(mshio.element_size("Body3"), 1.0);
mshio.add_element_data("BodyValue", "Body3", body_val2);
mshio.save_gmsh_v2_ascii("tmp/ex1.2");
//mshio.save_vtk_legacy_ascii("tmp/ex1.1");
mshio.info();
const array<vertex3dc> &nodes = mshio.get_nodes();
array<tetrahedron> body2_tets;
mshio.export_elements_to(body2_tets, "All");
gmshio gio;
gio.init_file("tmp.msh", Output);
gio.set_packed(NotPacked, Output);
gio.save_mesh(body2_tets, nodes);
*/
/*
mshio.read_gmsh_v2_ascii("tmp/wjb.1");
mshio.edit_group(Disable);
mshio.edit_group(Enable, GeometryTag, 3);
mshio.edit_group(Enable, GeometryTag, 8);
mshio.edit_group(Enable, GeometryTag, 9);
mshio.save_gmsh_v2_ascii("tmp/wjb.2");
*/
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}