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test_fe_engine_inradius.cc
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rAKA akantu
test_fe_engine_inradius.cc
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/**
* @file test_fe_engine_precomputation.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sun Oct 19 2014
* @date last modification: Wed Nov 18 2020
*
* @brief test of the fem class
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* 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 <fstream>
/* -------------------------------------------------------------------------- */
#include "test_fe_engine_fixture.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
TYPED_TEST(TestFEMFixture, Inradius) {
const auto & connectivities = this->mesh->getConnectivity(this->type);
const auto & nodes = this->mesh->getNodes().begin(this->dim);
std::ifstream fin;
fin.open(std::to_string(this->type) + ".csv");
if (not fin.is_open()) {
throw std::runtime_error("Could not open file " +
std::to_string(this->type) + ".csv");
}
int id;
std::vector<Real> inradiuses(connectivities.size());
Real inradius;
std::string line;
while (std::getline(fin, line)) {
// Create a stringstream of the current line
std::stringstream ss(line);
ss >> id;
// If the next token is a comma, ignore it and move on
if (ss.peek() == ',') {
ss.ignore();
}
ss >> inradius;
inradiuses[id] = inradius;
}
Matrix<Real> X(this->dim, connectivities.getNbComponent());
Element element{this->type, 0, _not_ghost};
for (auto && conn :
make_view(connectivities, connectivities.getNbComponent())) {
for (auto s : arange(conn.size())) {
Vector<Real>(X(s)) = Vector<Real>(nodes[conn(s)]);
}
auto inradius_coor = this->fem->getElementInradius(X, this->type);
auto inradius_elem = this->fem->getElementInradius(element);
auto inradius_file = inradiuses[element.element];
// Files was written in simple precision...
EXPECT_NEAR(inradius_elem, inradius_file, 1e-6);
EXPECT_NEAR(inradius_coor, inradius_file, 1e-6);
++element.element;
}
}
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