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mesh_io.cc
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Mon, Dec 2, 22:07

mesh_io.cc
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/**
* Copyright (©) 2010-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* Akantu is free software: 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 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*/
/* -------------------------------------------------------------------------- */
#include "mesh_io.hh"
#include "aka_common.hh"
#include "aka_iterators.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
MeshIO::MeshIO() {
canReadSurface = false;
canReadExtendedData = false;
}
/* -------------------------------------------------------------------------- */
MeshIO::~MeshIO() = default;
/* -------------------------------------------------------------------------- */
std::unique_ptr<MeshIO> MeshIO::getMeshIO(const std::string & filename,
const MeshIOType & type) {
MeshIOType t = type;
if (type == _miot_auto) {
std::string::size_type idx = filename.rfind('.');
std::string ext;
if (idx != std::string::npos) {
ext = filename.substr(idx + 1);
}
if (ext == "msh") {
t = _miot_gmsh;
} else if (ext == "diana") {
t = _miot_diana;
} else {
AKANTU_EXCEPTION("Cannot guess the type of file of "
<< filename << " (ext " << ext << "). "
<< "Please provide the MeshIOType to the read function");
}
}
switch (t) {
case _miot_gmsh:
return std::make_unique<MeshIOMSH>();
#if defined(AKANTU_STRUCTURAL_MECHANICS)
case _miot_gmsh_struct:
return std::make_unique<MeshIOMSHStruct>();
#endif
case _miot_diana:
return std::make_unique<MeshIODiana>();
default:
return nullptr;
}
}
/* -------------------------------------------------------------------------- */
void MeshIO::read(const std::string & filename, Mesh & mesh,
const MeshIOType & type) {
std::unique_ptr<MeshIO> mesh_io = getMeshIO(filename, type);
mesh_io->read(filename, mesh);
}
/* -------------------------------------------------------------------------- */
void MeshIO::write(const std::string & filename, Mesh & mesh,
const MeshIOType & type) {
std::unique_ptr<MeshIO> mesh_io = getMeshIO(filename, type);
mesh_io->write(filename, mesh);
}
/* -------------------------------------------------------------------------- */
void MeshIO::constructPhysicalNames(const std::string & tag_name, Mesh & mesh) {
if (not physical_names.empty()) {
for (auto type : mesh.elementTypes()) {
auto & name_vec =
mesh.getDataPointer<std::string>("physical_names", type);
const auto & tags_vec = mesh.getData<Int>(tag_name, type);
for (auto && pair : zip(tags_vec, name_vec)) {
auto tag = std::get<0>(pair);
auto & name = std::get<1>(pair);
auto map_it = physical_names.find(tag);
if (map_it == physical_names.end()) {
std::stringstream sstm;
sstm << tag;
name = sstm.str();
} else {
name = map_it->second;
}
}
}
}
}
/* -------------------------------------------------------------------------- */
void MeshIO::printself(std::ostream & stream, int indent) const {
std::string space(indent, AKANTU_INDENT);
if (not physical_names.empty()) {
stream << space << "Physical map:" << std::endl;
for (const auto & pair : physical_names) {
stream << space << pair.first << ": " << pair.second << std::endl;
}
}
}
/* -------------------------------------------------------------------------- */
} // namespace akantu

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