Page MenuHomec4science
Files F90727238

mesh_io_diana.cc
No OneTemporary
Actions

File Metadata

Created
Mon, Nov 4, 05:36

mesh_io_diana.cc
View Options

/**
* @file mesh_io_diana.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author David Simon Kammer <david.kammer@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Alodie Schneuwly <alodie.schneuwly@epfl.ch>
*
* @date creation: Sat Mar 26 2011
* @date last modification: Tue Feb 20 2018
*
* @brief handles diana meshes
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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 <iostream>
/* -------------------------------------------------------------------------- */
#include "element_group.hh"
#include "mesh_io_diana.hh"
#include "mesh_utils.hh"
/* -------------------------------------------------------------------------- */
#include <string.h>
/* -------------------------------------------------------------------------- */
#include <stdio.h>
namespace akantu {
/* -------------------------------------------------------------------------- */
/* Methods Implentations */
/* -------------------------------------------------------------------------- */
MeshIODiana::MeshIODiana() {
canReadSurface = true;
canReadExtendedData = true;
_diana_to_akantu_element_types["T9TM"] = _triangle_3;
_diana_to_akantu_element_types["CT6CM"] = _triangle_6;
_diana_to_akantu_element_types["Q12TM"] = _quadrangle_4;
_diana_to_akantu_element_types["CQ8CM"] = _quadrangle_8;
_diana_to_akantu_element_types["TP18L"] = _pentahedron_6;
_diana_to_akantu_element_types["CTP45"] = _pentahedron_15;
_diana_to_akantu_element_types["TE12L"] = _tetrahedron_4;
_diana_to_akantu_element_types["HX24L"] = _hexahedron_8;
_diana_to_akantu_element_types["CHX60"] = _hexahedron_20;
_diana_to_akantu_mat_prop["YOUNG"] = "E";
_diana_to_akantu_mat_prop["DENSIT"] = "rho";
_diana_to_akantu_mat_prop["POISON"] = "nu";
std::map<std::string, ElementType>::iterator it;
for (it = _diana_to_akantu_element_types.begin();
it != _diana_to_akantu_element_types.end(); ++it) {
UInt nb_nodes = Mesh::getNbNodesPerElement(it->second);
auto * tmp = new UInt[nb_nodes];
for (UInt i = 0; i < nb_nodes; ++i) {
tmp[i] = i;
}
switch (it->second) {
case _tetrahedron_10:
tmp[8] = 9;
tmp[9] = 8;
break;
case _pentahedron_15:
tmp[0] = 2;
tmp[1] = 8;
tmp[2] = 0;
tmp[3] = 6;
tmp[4] = 1;
tmp[5] = 7;
tmp[6] = 11;
tmp[7] = 9;
tmp[8] = 10;
tmp[9] = 5;
tmp[10] = 14;
tmp[11] = 3;
tmp[12] = 12;
tmp[13] = 4;
tmp[14] = 13;
break;
case _hexahedron_20:
tmp[0] = 5;
tmp[1] = 16;
tmp[2] = 4;
tmp[3] = 19;
tmp[4] = 7;
tmp[5] = 18;
tmp[6] = 6;
tmp[7] = 17;
tmp[8] = 13;
tmp[9] = 12;
tmp[10] = 15;
tmp[11] = 14;
tmp[12] = 1;
tmp[13] = 8;
tmp[14] = 0;
tmp[15] = 11;
tmp[16] = 3;
tmp[17] = 10;
tmp[18] = 2;
tmp[19] = 9;
break;
default:
// nothing to change
break;
}
_read_order[it->second] = tmp;
}
}
/* -------------------------------------------------------------------------- */
MeshIODiana::~MeshIODiana() = default;
/* -------------------------------------------------------------------------- */
inline void my_getline(std::ifstream & infile, std::string & line) {
std::getline(infile, line); // read the line
size_t pos = line.find('\r'); /// remove the extra \r if needed
line = line.substr(0, pos);
}
/* -------------------------------------------------------------------------- */
void MeshIODiana::read(const std::string & filename, Mesh & mesh) {
AKANTU_DEBUG_IN();
MeshAccessor mesh_accessor(mesh);
std::ifstream infile;
infile.open(filename.c_str());
std::string line;
UInt first_node_number = std::numeric_limits<UInt>::max();
diana_element_number_to_elements.clear();
if (!infile.good()) {
AKANTU_ERROR("Cannot open file " << filename);
}
while (infile.good()) {
my_getline(infile, line);
/// read all nodes
if (line == "'COORDINATES'") {
line = readCoordinates(infile, mesh, first_node_number);
}
/// read all elements
if (line == "'ELEMENTS'") {
line = readElements(infile, mesh, first_node_number);
}
/// read the material properties and write a .dat file
if (line == "'MATERIALS'") {
line = readMaterial(infile, filename);
}
/// read the material properties and write a .dat file
if (line == "'GROUPS'") {
line = readGroups(infile, mesh, first_node_number);
}
}
infile.close();
mesh_accessor.setNbGlobalNodes(mesh.getNbNodes());
MeshUtils::fillElementToSubElementsData(mesh);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void MeshIODiana::write(__attribute__((unused)) const std::string & filename,
__attribute__((unused)) const Mesh & mesh) {
AKANTU_TO_IMPLEMENT();
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readCoordinates(std::ifstream & infile, Mesh & mesh,
UInt & first_node_number) {
AKANTU_DEBUG_IN();
MeshAccessor mesh_accessor(mesh);
Array<Real> & nodes = mesh_accessor.getNodes();
std::string line;
UInt index;
Vector<Real> coord(3);
do {
my_getline(infile, line);
if ("'ELEMENTS'" == line)
break;
std::stringstream sstr_node(line);
sstr_node >> index >> coord(0) >> coord(1) >> coord(2);
first_node_number = first_node_number < index ? first_node_number : index;
nodes.push_back(coord);
} while (true);
AKANTU_DEBUG_OUT();
return line;
}
/* -------------------------------------------------------------------------- */
UInt MeshIODiana::readInterval(std::stringstream & line,
std::set<UInt> & interval) {
UInt first;
line >> first;
if (line.fail()) {
return 0;
}
interval.insert(first);
UInt second;
int dash;
dash = line.get();
if (dash == '-') {
line >> second;
interval.insert(second);
return 2;
}
if (line.fail())
line.clear(std::ios::eofbit); // in case of get at end of the line
else
line.unget();
return 1;
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readGroups(std::ifstream & infile, Mesh & mesh,
UInt first_node_number) {
AKANTU_DEBUG_IN();
std::string line;
my_getline(infile, line);
bool reading_nodes_group = false;
while (line != "'SUPPORTS'") {
if (line == "NODES") {
reading_nodes_group = true;
my_getline(infile, line);
}
if (line == "ELEMEN") {
reading_nodes_group = false;
my_getline(infile, line);
}
auto * str = new std::stringstream(line);
UInt id;
std::string name;
char c;
*str >> id >> name >> c;
auto * list_ids = new Array<UInt>(0, 1, name);
UInt s = 1;
bool end = false;
while (!end) {
while (!str->eof() && s != 0) {
std::set<UInt> interval;
s = readInterval(*str, interval);
auto it = interval.begin();
if (s == 1)
list_ids->push_back(*it);
if (s == 2) {
UInt first = *it;
++it;
UInt second = *it;
for (UInt i = first; i <= second; ++i) {
list_ids->push_back(i);
}
}
}
if (str->fail())
end = true;
else {
my_getline(infile, line);
delete str;
str = new std::stringstream(line);
}
}
delete str;
if (reading_nodes_group) {
NodeGroup & ng = mesh.createNodeGroup(name);
for (UInt i = 0; i < list_ids->size(); ++i) {
UInt node = (*list_ids)(i)-first_node_number;
ng.add(node, false);
}
delete list_ids;
} else {
ElementGroup & eg = mesh.createElementGroup(name);
for (UInt i = 0; i < list_ids->size(); ++i) {
Element & elem = diana_element_number_to_elements[(*list_ids)(i)];
if (elem.type != _not_defined)
eg.add(elem, false, false);
}
eg.optimize();
delete list_ids;
}
my_getline(infile, line);
}
AKANTU_DEBUG_OUT();
return line;
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readElements(std::ifstream & infile, Mesh & mesh,
UInt first_node_number) {
AKANTU_DEBUG_IN();
std::string line;
my_getline(infile, line);
if ("CONNECTIVITY" == line) {
line = readConnectivity(infile, mesh, first_node_number);
}
/// read the line corresponding to the materials
if ("MATERIALS" == line) {
line = readMaterialElement(infile, mesh);
}
AKANTU_DEBUG_OUT();
return line;
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readConnectivity(std::ifstream & infile, Mesh & mesh,
UInt first_node_number) {
AKANTU_DEBUG_IN();
MeshAccessor mesh_accessor(mesh);
Int index;
std::string lline;
std::string diana_type;
ElementType akantu_type, akantu_type_old = _not_defined;
Array<UInt> * connectivity = nullptr;
UInt node_per_element = 0;
Element elem;
UInt * read_order = nullptr;
while (true) {
my_getline(infile, lline);
// std::cerr << lline << std::endl;
std::stringstream sstr_elem(lline);
if (lline == "MATERIALS")
break;
/// traiter les coordonnees
sstr_elem >> index;
sstr_elem >> diana_type;
akantu_type = _diana_to_akantu_element_types[diana_type];
if (akantu_type == _not_defined)
continue;
if (akantu_type != akantu_type_old) {
connectivity = &(mesh_accessor.getConnectivity(akantu_type));
node_per_element = connectivity->getNbComponent();
akantu_type_old = akantu_type;
read_order = _read_order[akantu_type];
}
Vector<UInt> local_connect(node_per_element);
// used if element is written on two lines
UInt j_last = 0;
for (UInt j = 0; j < node_per_element; ++j) {
UInt node_index;
sstr_elem >> node_index;
// check s'il y a pas plus rien après un certain point
if (sstr_elem.fail()) {
sstr_elem.clear();
sstr_elem.ignore();
break;
}
node_index -= first_node_number;
local_connect(read_order[j]) = node_index;
j_last = j;
}
// check if element is written in two lines
if (j_last != (node_per_element - 1)) {
// if this is the case, read on more line
my_getline(infile, lline);
std::stringstream sstr_elem(lline);
for (UInt j = (j_last + 1); j < node_per_element; ++j) {
UInt node_index;
sstr_elem >> node_index;
node_index -= first_node_number;
local_connect(read_order[j]) = node_index;
}
}
connectivity->push_back(local_connect);
elem.type = akantu_type;
elem.element = connectivity->size() - 1;
diana_element_number_to_elements[index] = elem;
akantu_number_to_diana_number[elem] = index;
}
AKANTU_DEBUG_OUT();
return lline;
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readMaterialElement(std::ifstream & infile,
Mesh & mesh) {
AKANTU_DEBUG_IN();
std::string line;
for (auto type : mesh.elementTypes()) {
UInt nb_element = mesh.getNbElement(type);
mesh.getDataPointer<UInt>("material", type, _not_ghost, 1)
.resize(nb_element);
}
my_getline(infile, line);
while (line != "'MATERIALS'") {
line =
line.substr(line.find('/') + 1,
std::string::npos); // erase the first slash / of the line
char tutu[250] = {'\0'};
strncpy(tutu, line.c_str(), 249);
AKANTU_DEBUG_WARNING("reading line " << line);
Array<UInt> temp_id(0, 2);
UInt mat;
while (true) {
std::stringstream sstr_intervals_elements(line);
Vector<UInt> id(2);
char temp;
while (sstr_intervals_elements.good()) {
sstr_intervals_elements >> id(0) >> temp >> id(1); // >> "/" >> mat;
if (!sstr_intervals_elements.fail())
temp_id.push_back(id);
}
if (sstr_intervals_elements.fail()) {
sstr_intervals_elements.clear();
sstr_intervals_elements.ignore();
sstr_intervals_elements >> mat;
break;
}
my_getline(infile, line);
}
// loop over elements
// UInt * temp_id_val = temp_id.storage();
for (UInt i = 0; i < temp_id.size(); ++i)
for (UInt j = temp_id(i, 0); j <= temp_id(i, 1); ++j) {
Element & element = diana_element_number_to_elements[j];
if (element.type == _not_defined)
continue;
UInt elem = element.element;
ElementType type = element.type;
Array<UInt> & data =
mesh.getDataPointer<UInt>("material", type, _not_ghost);
data(elem) = mat;
}
my_getline(infile, line);
}
AKANTU_DEBUG_OUT();
return line;
}
/* -------------------------------------------------------------------------- */
std::string MeshIODiana::readMaterial(std::ifstream & infile,
const std::string & filename) {
AKANTU_DEBUG_IN();
std::stringstream mat_file_name;
mat_file_name << "material_" << filename;
std::ofstream material_file;
material_file.open(mat_file_name.str().c_str()); // mat_file_name.str());
UInt mat_index;
std::string line;
bool first_mat = true;
bool end = false;
UInt mat_id = 0;
using MatProp = std::map<std::string, Real>;
MatProp mat_prop;
do {
my_getline(infile, line);
std::stringstream sstr_material(line);
if (("'GROUPS'" == line) || ("'END'" == line)) {
if (!mat_prop.empty()) {
material_file << "material elastic [" << std::endl;
material_file << "\tname = material" << ++mat_id << std::endl;
for (auto it = mat_prop.begin(); it != mat_prop.end(); ++it)
material_file << "\t" << it->first << " = " << it->second
<< std::endl;
material_file << "]" << std::endl;
mat_prop.clear();
}
end = true;
} else {
/// traiter les caractéristiques des matériaux
sstr_material >> mat_index;
if (!sstr_material.fail()) {
if (!first_mat) {
if (!mat_prop.empty()) {
material_file << "material elastic [" << std::endl;
material_file << "\tname = material" << ++mat_id << std::endl;
for (auto it = mat_prop.begin(); it != mat_prop.end(); ++it)
material_file << "\t" << it->first << " = " << it->second
<< std::endl;
material_file << "]" << std::endl;
mat_prop.clear();
}
}
first_mat = false;
} else {
sstr_material.clear();
}
std::string prop_name;
sstr_material >> prop_name;
std::map<std::string, std::string>::iterator it;
it = _diana_to_akantu_mat_prop.find(prop_name);
if (it != _diana_to_akantu_mat_prop.end()) {
Real value;
sstr_material >> value;
mat_prop[it->second] = value;
} else {
AKANTU_DEBUG_INFO("In material reader, property " << prop_name
<< "not recognized");
}
}
} while (!end);
AKANTU_DEBUG_OUT();
return line;
}
/* -------------------------------------------------------------------------- */
} // namespace akantu

Event Timeline

c4science · Help