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test_contact_regular_grid_nodes.cc
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Mon, Aug 19, 16:33

test_contact_regular_grid_nodes.cc
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/**
* @file test_contact_regular_grid.cc
* @author David Kammer <david.kammer@epfl.ch>
* @date Tue Oct 26 16:58:42 2010
*
* @brief test regular grid neighbor structure for 3d case
*
* @section LICENSE
*
* <insert license here>
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "mesh_io_msh.hh"
#include "mesh_utils.hh"
#include "solid_mechanics_model.hh"
#include "material.hh"
#include "contact.hh"
#include "contact_neighbor_structure.hh"
#include "regular_grid_neighbor_structure.hh"
#ifdef AKANTU_USE_IOHELPER
# include "io_helper.h"
#endif //AKANTU_USE_IOHELPER
using namespace akantu;
int main(int argc, char *argv[])
{
int dim = 3;
/// load mesh
Mesh my_mesh(dim);
MeshIOMSH mesh_io;
mesh_io.read("cubes.msh", my_mesh);
/// build facet connectivity and surface id
MeshUtils::buildFacets(my_mesh,1,0);
MeshUtils::buildSurfaceID(my_mesh);
unsigned int nb_nodes = my_mesh.getNbNodes();
/// dump facet and surface information to paraview
#ifdef AKANTU_USE_IOHELPER
DumperParaview dumper;
dumper.SetMode(TEXT);
dumper.SetPoints(my_mesh.getNodes().values, dim, nb_nodes, "rgn-test-surface-extraction");
dumper.SetConnectivity((int*)my_mesh.getConnectivity(_tetrahedron_4).values,
TETRA1, my_mesh.getNbElement(_tetrahedron_4), C_MODE);
dumper.SetPrefix("paraview/");
dumper.Init();
dumper.Dump();
DumperParaview dumper_surface;
dumper_surface.SetMode(TEXT);
dumper_surface.SetPoints(my_mesh.getNodes().values, dim, nb_nodes, "rgn-test-surface-extraction_boundary");
dumper_surface.SetConnectivity((int *)my_mesh.getConnectivity(_triangle_3).values,
TRIANGLE1, my_mesh.getNbElement(_triangle_3), C_MODE);
double * surf_id = new double [my_mesh.getSurfaceId(_triangle_3).getSize()];
for (UInt i = 0; i < my_mesh.getSurfaceId(_triangle_3).getSize(); ++i)
surf_id[i] = (double)my_mesh.getSurfaceId(_triangle_3).values[i];
dumper_surface.AddElemDataField(surf_id, 1, "surface_id");
delete [] surf_id;
dumper_surface.SetPrefix("paraview/");
dumper_surface.Init();
dumper_surface.Dump();
#endif //AKANTU_USE_IOHELPER
/// declaration of model
SolidMechanicsModel my_model(my_mesh);
/// model initialization
my_model.initVectors();
// initialize the vectors
memset(my_model.getForce().values, 0, 3*nb_nodes*sizeof(Real));
memset(my_model.getVelocity().values, 0, 3*nb_nodes*sizeof(Real));
memset(my_model.getAcceleration().values, 0, 3*nb_nodes*sizeof(Real));
memset(my_model.getDisplacement().values, 0, 3*nb_nodes*sizeof(Real));
my_model.readMaterials("material.dat");
my_model.initMaterials();
my_model.initModel();
Real time_step = my_model.getStableTimeStep();
my_model.setTimeStep(time_step/10.);
my_model.assembleMassLumped();
/// contact declaration
Contact * my_contact = Contact::newContact(my_model,
_ct_3d_expli,
_cst_3d_expli,
_cnst_regular_grid);
my_contact->initContact(false);
Surface master = 0;
my_contact->addMasterSurface(master);
my_contact->initNeighborStructure(master);
NodesNeighborList & my_neighbor_list = dynamic_cast<NodesNeighborList &>(const_cast<NeighborList&>(const_cast<ContactNeighborStructure&>(my_contact->getContactSearch().getContactNeighborStructure(master)).getNeighborList()));
//const NeighborList & my_neighbor_list = const_cast<ContactNeighborStructure&>(my_contact->getContactSearch().getContactNeighborStructure(master)).getNeighborList();
UInt nb_nodes_neigh = my_neighbor_list.impactor_nodes.getSize();
Vector<UInt> impact_nodes = my_neighbor_list.impactor_nodes;
UInt * impact_nodes_val = impact_nodes.values;
/// print impactor nodes
std::cout << "we have " << nb_nodes_neigh << " impactor nodes:";
for (UInt i = 0; i < nb_nodes_neigh; ++i) {
std::cout << " " << impact_nodes_val[i];
}
std::cout << std::endl;
UInt * master_nodes_offset_val = my_neighbor_list.master_nodes_offset.values;
UInt * master_nodes_val = my_neighbor_list.master_nodes.values;
for (UInt i = 0; i < nb_nodes_neigh; ++i) {
std::cout << " Impactor node: " << impact_nodes_val[i] << " has master nodes:";
for(UInt mn = master_nodes_offset_val[i]; mn < master_nodes_offset_val[i+1]; ++mn) {
std::cout << " " << master_nodes_val[mn];
}
std::cout << std::endl;
}
delete my_contact;
finalize();
return EXIT_SUCCESS;
}

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