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rAKA/examples/regular_meshes/regular_meshes.cc
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/**
* @file scalability_test.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Tue Feb 22 09:35:58 2011
*
* @brief Test de scalability
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 <limits>
#include <fstream>
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "mesh_io_msh.hh"
#include "solid_mechanics_model.hh"
#include "material.hh"
#include "static_communicator.hh"
#include "mesh_partition_scotch.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char *argv[])
{
akantu::debug::setDebugLevel(akantu::dblWarning);
initialize(&argc, &argv);
/* -------------------------------------------------------------------------- */
UInt spatial_dimension = 2;
ElementType type = _quadrangle_4;
UInt nex = 50, ney = 5;
Real width = 1., height = 1.;
if(argc == 3) {
nex = atoi(argv[1]);
ney = atoi(argv[2]);
} else if (argc != 1) {
std::cout << "Usage : " << argv[0] << " [nb_element_x nb_element_y]" << std::endl;
exit(EXIT_FAILURE);
}
/* ------------------------------------------------------------------------ */
Mesh mesh(spatial_dimension);
std::cout << "Generating mesh..." << std::endl;
Real height_el = height / ney;
Real width_el = width / nex;
UInt nnx = nex + 1, nny = ney + 1;
Vector<Real> & nodes = const_cast<Vector<Real> &>(mesh.getNodes());
nodes.resize(nnx * nny);
mesh.addConnecticityType(type);
Vector<UInt> & connectivity = const_cast<Vector<UInt> &>(mesh.getConnectivity(type));
UInt t = 0;
if(type == _quadrangle_4) t = nex * ney;
if(type == _triangle_3) t = nex * ney * 2;
connectivity.resize(t);
for (UInt i = 0; i < nnx; ++i) {
for (UInt j = 0; j < nny; ++j) {
UInt n = i * nny + j;
nodes.at(n, 0) = i * width_el;
nodes.at(n, 1) = j * height_el;
}
}
for (UInt i = 0; i < nex; ++i) {
for (UInt j = 0; j < ney; ++j) {
if(type == _quadrangle_4) {
/*
* 3 2
* x------x
* | |
* | |
* | |
* x------x
* 0 1
*/
UInt e = (i * ney + j);
connectivity.at(e, 0) = i * nny + j;
connectivity.at(e, 1) = (i + 1) * nny + j;
connectivity.at(e, 2) = (i + 1) * nny + (j + 1);
connectivity.at(e, 3) = i * nny + j + 1;
}
if(type == _triangle_3) {
/*
* 3 2
* x------x
* | / |
* | / |
* |/ |
* x------x
* 0 1
*/
UInt e = (i * ney + j) * 2;
connectivity.at(e, 0) = i * nny + j;
connectivity.at(e, 1) = (i + 1) * nny + j;
connectivity.at(e, 2) = (i + 1) * nny + (j + 1);
connectivity.at(e + 1, 0) = i * nny + j;
connectivity.at(e + 1, 1) = (i + 1) * nny + (j + 1);
connectivity.at(e + 1, 2) = i * nny + j + 1;
}
}
}
akantu::MeshIOMSH mesh_io;
mesh_io.write("bar.msh", mesh);
return EXIT_SUCCESS;
}
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