File size: 2,143 Bytes
ebc16f3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | #include <mshr.h>
#include <dolfin.h>
#include <ImmersedBoundaryMethod.h>
namespace dolfin {
class FiberDirection : public Expression
{
public:
FiberDirection(
std::shared_ptr<MeshFunction<double> > f0_0,
std::shared_ptr<MeshFunction<double> > f0_1,
std::shared_ptr<MeshFunction<double> > f0_2
) : Expression(3), f0_0(f0_0), f0_1(f0_1), f0_2(f0_2) {}
// Function for evaluating expression on each cell
void eval(Array<double>& values, const Array<double>& x, const ufc::cell& cell) const
{
const uint D = cell.topological_dimension;
const uint cell_index = cell.index;
values[0] = (*c00)[cell_index];
values[1] = (*c01)[cell_index];
values[2] = (*c11)[cell_index];
}
// The data stored in mesh functions
std::shared_ptr<MeshFunction<double> > f0_0;
std::shared_ptr<MeshFunction<double> > f0_1;
std::shared_ptr<MeshFunction<double> > f0_2;
};
}
int main(){
double mesh_resolution = 120;
double length = 74.4;
double bottom = -115;
double length_2 = 9.9;
double bottom_2 = 5.1;
std::cout << "Create solid mesh.\n";
auto domain_small = std::make_shared<mshr::Cylinder>(dolfin::Point(0.0,0.0,bottom), dolfin::Point(0.0,0.0,bottom+length), 13.182, 13.182);
auto domain_big = std::make_shared<mshr::Cylinder>(dolfin::Point(0.0,0.0,bottom), dolfin::Point(0.0,0.0,bottom+length), 14.672, 14.672);
auto domain_small_2 = std::make_shared<mshr::Cylinder>(dolfin::Point(0.0,0.0,bottom_2), dolfin::Point(0.0,0.0,bottom_2+length_2), 13.343, 13.343);
auto domain_big_2 = std::make_shared<mshr::Cylinder>(dolfin::Point(0.0,0.0,bottom_2), dolfin::Point(0.0,0.0,bottom_2+length_2), 14.833, 14.833);
auto domain = domain_big - domain_small + domain_big_2 - domain_small_2;
auto solid_mesh = std::make_shared<ImmersedMesh>(mshr::generate_mesh(domain, mesh_resolution));
dolfin::File mesh_file_0("extended_tube.pvd");
mesh_file_0 << *solid_mesh->get_dolfin_mesh();
dolfin::XDMFFile mesh_file("/public/home/fenics/Mesh_1/valve/mesh.xdmf");
auto mesh = dolfin::Mesh();
mesh_file.read(mesh);
mesh_file.close();
} |