mirror of
https://github.com/NGSolve/netgen.git
synced 2025-03-23 23:17:57 +05:00
177ecc7459
If surfnr is larger than nr of surfaces then do linear interpolation for PointInBetween and so on. Some fixes in boundarylayer so that surface numbers are correct.
1159 lines
43 KiB
C++
1159 lines
43 KiB
C++
#ifdef NG_PYTHON
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#include <regex>
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#include <../general/ngpython.hpp>
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#include <core/python_ngcore.hpp>
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#include "python_mesh.hpp"
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#include <mystdlib.h>
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#include "meshing.hpp"
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// #include <csg.hpp>
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// #include <geometry2d.hpp>
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#include <../interface/writeuser.hpp>
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using namespace netgen;
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extern const char *ngscript[];
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namespace netgen
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{
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extern bool netgen_executable_started;
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extern shared_ptr<NetgenGeometry> ng_geometry;
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extern void Optimize2d (Mesh & mesh, MeshingParameters & mp);
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#ifdef PARALLEL
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/** we need allreduce in python-wrapped communicators **/
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template <typename T>
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inline T MyMPI_AllReduceNG (T d, const MPI_Op & op /* = MPI_SUM */, MPI_Comm comm)
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{
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T global_d;
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MPI_Allreduce ( &d, &global_d, 1, MyGetMPIType<T>(), op, comm);
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return global_d;
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}
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#else
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// enum { MPI_SUM = 0, MPI_MIN = 1, MPI_MAX = 2 };
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// typedef int MPI_Op;
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template <typename T>
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inline T MyMPI_AllReduceNG (T d, const MPI_Op & op /* = MPI_SUM */, MPI_Comm comm)
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{ return d; }
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#endif
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}
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void TranslateException (const NgException & ex)
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{
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string err = string("Netgen exception: ")+ex.What();
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PyErr_SetString(PyExc_RuntimeError, err.c_str());
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}
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static Transformation<3> global_trafo(Vec<3> (0,0,0));
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DLL_HEADER void ExportNetgenMeshing(py::module &m)
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{
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py::register_exception<NgException>(m, "NgException");
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m.attr("_netgen_executable_started") = py::cast(netgen::netgen_executable_started);
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string script;
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const char ** hcp = ngscript;
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while (*hcp)
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script += *hcp++;
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m.attr("_ngscript") = py::cast(script);
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m.def("_GetStatus", []()
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{
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MyStr s; double percent;
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GetStatus(s, percent);
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return py::make_tuple(s.c_str(), percent);
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});
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m.def("_PushStatus", [](string s) { PushStatus(MyStr(s)); });
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m.def("_SetThreadPercentage", [](double percent) { SetThreadPercent(percent); });
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py::class_<NgMPI_Comm> (m, "MPI_Comm")
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.def_property_readonly ("rank", &NgMPI_Comm::Rank)
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.def_property_readonly ("size", &NgMPI_Comm::Size)
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.def("Barrier", &NgMPI_Comm::Barrier)
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#ifdef PARALLEL
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.def("WTime", [](NgMPI_Comm & c) { return MPI_Wtime(); })
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#else
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.def("WTime", [](NgMPI_Comm & c) { return -1.0; })
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#endif
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.def("Sum", [](NgMPI_Comm & c, double x) { return MyMPI_AllReduceNG(x, MPI_SUM, c); })
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.def("Min", [](NgMPI_Comm & c, double x) { return MyMPI_AllReduceNG(x, MPI_MIN, c); })
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.def("Max", [](NgMPI_Comm & c, double x) { return MyMPI_AllReduceNG(x, MPI_MAX, c); })
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.def("Sum", [](NgMPI_Comm & c, int x) { return MyMPI_AllReduceNG(x, MPI_SUM, c); })
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.def("Min", [](NgMPI_Comm & c, int x) { return MyMPI_AllReduceNG(x, MPI_MIN, c); })
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.def("Max", [](NgMPI_Comm & c, int x) { return MyMPI_AllReduceNG(x, MPI_MAX, c); })
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.def("Sum", [](NgMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_SUM, c); })
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.def("Min", [](NgMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_MIN, c); })
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.def("Max", [](NgMPI_Comm & c, size_t x) { return MyMPI_AllReduceNG(x, MPI_MAX, c); })
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.def("SubComm", [](NgMPI_Comm & c, std::vector<int> proc_list) {
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Array<int> procs(proc_list.size());
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for (int i = 0; i < procs.Size(); i++)
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{ procs[i] = proc_list[i]; }
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if (!procs.Contains(c.Rank()))
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{ throw Exception("rank "+ToString(c.Rank())+" not in subcomm"); }
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return c.SubCommunicator(procs);
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}, py::arg("procs"));
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;
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py::class_<NGDummyArgument>(m, "NGDummyArgument")
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.def("__bool__", []( NGDummyArgument &self ) { return false; } )
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;
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py::class_<Point<2>> (m, "Point2d")
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.def(py::init<double,double>())
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.def ("__str__", &ToString<Point<2>>)
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.def(py::self-py::self)
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.def(py::self+Vec<2>())
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.def(py::self-Vec<2>())
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.def("__getitem__", [](Point<2>& self, int index) { return self[index]; })
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;
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py::class_<Point<3>> (m, "Point3d")
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.def(py::init<double,double,double>())
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.def ("__str__", &ToString<Point<3>>)
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.def(py::self-py::self)
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.def(py::self+Vec<3>())
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.def(py::self-Vec<3>())
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.def("__getitem__", [](Point<2>& self, int index) { return self[index]; })
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;
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m.def("Pnt", [](double x, double y, double z)
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{ return global_trafo(Point<3>(x,y,z)); });
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m.def("Pnt", [](double x, double y) { return Point<2>(x,y); });
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m.def("Pnt", [](py::array_t<double> np_array)
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{
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int dim = np_array.size();
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if(!(dim == 2 || dim == 3))
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throw Exception("Invalid dimension of input array!");
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if(dim == 2)
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return py::cast(Point<2>(np_array.at(0),
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np_array.at(1)));
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return py::cast(global_trafo(Point<3>(np_array.at(0),
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np_array.at(1),
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np_array.at(2))));
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});
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py::class_<Vec<2>> (m, "Vec2d")
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.def(py::init<double,double>())
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.def ("__str__", &ToString<Vec<3>>)
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.def(py::self==py::self)
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.def(py::self+py::self)
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.def(py::self-py::self)
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.def(-py::self)
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.def(double()*py::self)
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.def(py::self*double())
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.def("Norm", &Vec<2>::Length)
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.def("__getitem__", [](Vec<2>& vec, int index) { return vec[index]; })
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.def("__len__", [](Vec<2>& /*unused*/) { return 2; })
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;
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py::class_<Vec<3>> (m, "Vec3d")
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.def(py::init<double,double,double>())
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.def ("__str__", &ToString<Vec<3>>)
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.def(py::self==py::self)
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.def(py::self+py::self)
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.def(py::self-py::self)
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.def(-py::self)
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.def(double()*py::self)
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.def(py::self*double())
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.def("Norm", &Vec<3>::Length)
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.def("__getitem__", [](Vec<3>& vec, int index) { return vec[index]; })
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.def("__len__", [](Vec<3>& /*unused*/) { return 3; })
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;
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m.def ("Vec", FunctionPointer
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([] (double x, double y, double z) { return global_trafo(Vec<3>(x,y,z)); }));
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m.def("Vec", [](py::array_t<double> np_array)
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{
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int dim = np_array.size();
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if(!(dim == 2 || dim == 3))
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throw Exception("Invalid dimension of input array!");
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if(dim == 2)
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return py::cast(Vec<2>(np_array.at(0),
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np_array.at(1)));
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return py::cast(global_trafo(Vec<3>(np_array.at(0),
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np_array.at(1),
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np_array.at(2))));
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});
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m.def ("Vec", FunctionPointer
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([] (double x, double y) { return Vec<2>(x,y); }));
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py::class_<Transformation<3>> (m, "Trafo")
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.def(py::init<Vec<3>>(), "a translation")
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.def(py::init<Point<3>,Vec<3>,double>(), "a rotation given by point on axes, direction of axes, angle")
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.def("__mul__", [](Transformation<3> a, Transformation<3> b)->Transformation<3>
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{ Transformation<3> res; res.Combine(a,b); return res; })
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.def("__call__", [] (Transformation<3> trafo, Point<3> p) { return trafo(p); })
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;
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m.def ("GetTransformation", [] () { return global_trafo; });
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m.def ("SetTransformation", [] (Transformation<3> trafo) { global_trafo = trafo; });
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m.def ("SetTransformation",
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[](int dir, double angle)
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{
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if (dir > 0)
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global_trafo.SetAxisRotation (dir, angle*M_PI/180);
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else
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global_trafo = Transformation<3> (Vec<3>(0,0,0));
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},
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py::arg("dir")=int(0), py::arg("angle")=int(0));
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m.def ("SetTransformation",
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[](Point<3> p0, Vec<3> ex, Vec<3> ey, Vec<3> ez)
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{
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Point<3> pnts[4];
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pnts[0] = p0;
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pnts[1] = p0 + ex;
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pnts[2] = p0 + ey;
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pnts[3] = p0 + ez;
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global_trafo = Transformation<3> (pnts);
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},
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py::arg("p0"), py::arg("ex"), py::arg("ey"), py::arg("ez"));
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py::class_<PointIndex>(m, "PointId")
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.def(py::init<int>())
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.def("__repr__", &ToString<PointIndex>)
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.def("__str__", &ToString<PointIndex>)
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.def_property_readonly("nr", &PointIndex::operator int)
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.def("__eq__" , FunctionPointer( [](PointIndex &self, PointIndex &other)
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{ return static_cast<int>(self)==static_cast<int>(other); }) )
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.def("__hash__" , FunctionPointer( [](PointIndex &self ) { return static_cast<int>(self); }) )
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;
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py::class_<ElementIndex>(m, "ElementId3D")
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.def(py::init<int>())
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.def("__repr__", &ToString<ElementIndex>)
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.def("__str__", &ToString<ElementIndex>)
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.def_property_readonly("nr", &ElementIndex::operator int)
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.def("__eq__" , FunctionPointer( [](ElementIndex &self, ElementIndex &other)
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{ return static_cast<int>(self)==static_cast<int>(other); }) )
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.def("__hash__" , FunctionPointer( [](ElementIndex &self ) { return static_cast<int>(self); }) )
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;
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py::class_<SurfaceElementIndex>(m, "ElementId2D")
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.def(py::init<int>())
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.def("__repr__", &ToString<SurfaceElementIndex>)
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.def("__str__", &ToString<SurfaceElementIndex>)
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.def_property_readonly("nr", &SurfaceElementIndex::operator int)
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.def("__eq__" , FunctionPointer( [](SurfaceElementIndex &self, SurfaceElementIndex &other)
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{ return static_cast<int>(self)==static_cast<int>(other); }) )
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.def("__hash__" , FunctionPointer( [](SurfaceElementIndex &self ) { return static_cast<int>(self); }) )
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;
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py::class_<SegmentIndex>(m, "ElementId1D")
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.def(py::init<int>())
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.def("__repr__", &ToString<SegmentIndex>)
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.def("__str__", &ToString<SegmentIndex>)
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.def_property_readonly("nr", &SegmentIndex::operator int)
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.def("__eq__" , FunctionPointer( [](SegmentIndex &self, SegmentIndex &other)
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{ return static_cast<int>(self)==static_cast<int>(other); }) )
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.def("__hash__" , FunctionPointer( [](SegmentIndex &self ) { return static_cast<int>(self); }) )
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;
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/*
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py::class_<Point<3>> ("Point")
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.def(py::init<double,double,double>())
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;
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*/
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py::class_<MeshPoint /* ,py::bases<Point<3>> */ >(m, "MeshPoint")
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.def(py::init<Point<3>>())
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.def("__str__", &ToString<MeshPoint>)
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.def("__repr__", &ToString<MeshPoint>)
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.def_property_readonly("p", [](const MeshPoint & self)
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{
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py::list l;
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l.append ( py::cast(self[0]) );
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l.append ( py::cast(self[1]) );
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l.append ( py::cast(self[2]) );
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return py::tuple(l);
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})
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.def("__getitem__", [](const MeshPoint & self, int index) {
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if(index<0 || index>2)
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throw py::index_error();
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return self[index];
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})
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.def("__setitem__", [](MeshPoint & self, int index, double val) {
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if(index<0 || index>2)
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throw py::index_error();
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self(index) = val;
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})
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;
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py::class_<Element>(m, "Element3D")
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.def(py::init([](int index, std::vector<PointIndex> vertices)
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{
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int np = vertices.size();
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ELEMENT_TYPE et;
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switch (np)
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{
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case 4: et = TET; break;
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case 5: et = PYRAMID; break;
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case 6: et = PRISM; break;
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case 8: et = HEX; break;
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case 10: et = TET10; break;
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case 13: et = PYRAMID13; break;
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case 15: et = PRISM15; break;
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case 20: et = HEX20; break;
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default:
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throw Exception ("no Element3D with " + ToString(np) +
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" points");
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}
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auto newel = new Element(et);
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for(int i=0; i<np; i++)
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(*newel)[i] = vertices[i];
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newel->SetIndex(index);
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return newel;
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}),
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py::arg("index")=1,py::arg("vertices"),
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"create volume element"
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)
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.def("__repr__", &ToString<Element>)
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.def_property("index", &Element::GetIndex, &Element::SetIndex)
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.def_property("curved", &Element::IsCurved, &Element::SetCurved)
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.def_property_readonly("vertices",
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FunctionPointer ([](const Element & self) -> py::list
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{
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py::list li;
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for (int i = 0; i < self.GetNV(); i++)
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li.append (py::cast(self[i]));
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return li;
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}))
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.def_property_readonly("points",
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FunctionPointer ([](const Element & self) -> py::list
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{
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py::list li;
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for (int i = 0; i < self.GetNP(); i++)
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li.append (py::cast(self[i]));
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return li;
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}))
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;
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py::class_<Element2d>(m, "Element2D")
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.def(py::init ([](int index, std::vector<PointIndex> vertices)
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{
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Element2d * newel = nullptr;
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if (vertices.size() == 3)
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{
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newel = new Element2d(TRIG);
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for (int i = 0; i < 3; i++)
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(*newel)[i] = vertices[i];
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newel->SetIndex(index);
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}
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else if (vertices.size() == 4)
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{
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newel = new Element2d(QUAD);
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for (int i = 0; i < 4; i++)
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(*newel)[i] = vertices[i];
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newel->SetIndex(index);
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}
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else if (vertices.size() == 6)
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{
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newel = new Element2d(TRIG6);
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for(int i = 0; i<6; i++)
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(*newel)[i] = vertices[i];
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newel->SetIndex(index);
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}
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else if (vertices.size() == 8)
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{
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newel = new Element2d(QUAD8);
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for(int i = 0; i<8; i++)
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(*newel)[i] = vertices[i];
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newel->SetIndex(index);
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}
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else
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throw NgException("Inconsistent number of vertices in Element2D");
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return newel;
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}),
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py::arg("index")=1,py::arg("vertices"),
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"create surface element"
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)
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.def_property("index", &Element2d::GetIndex, &Element2d::SetIndex)
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.def_property("curved", &Element2d::IsCurved, &Element2d::SetCurved)
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.def_property_readonly("vertices",
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FunctionPointer([](const Element2d & self) -> py::list
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{
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py::list li;
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for (int i = 0; i < self.GetNV(); i++)
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li.append(py::cast(self[i]));
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return li;
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}))
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.def_property_readonly("points",
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FunctionPointer ([](const Element2d & self) -> py::list
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{
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py::list li;
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for (int i = 0; i < self.GetNP(); i++)
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li.append (py::cast(self[i]));
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return li;
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}))
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;
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py::class_<Segment>(m, "Element1D")
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.def(py::init([](py::list vertices, py::list surfaces, int index, int edgenr)
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{
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Segment * newel = new Segment();
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for (int i = 0; i < 2; i++)
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(*newel)[i] = py::extract<PointIndex>(vertices[i])();
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newel -> si = index;
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newel -> edgenr = edgenr;
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newel -> epgeominfo[0].edgenr = edgenr;
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newel -> epgeominfo[1].edgenr = edgenr;
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// needed for codim2 in 3d
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newel -> edgenr = index;
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if (len(surfaces))
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{
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newel->surfnr1 = py::extract<int>(surfaces[0])();
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newel->surfnr2 = py::extract<int>(surfaces[1])();
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}
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return newel;
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}),
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py::arg("vertices"),
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py::arg("surfaces")=py::list(),
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py::arg("index")=1,
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py::arg("edgenr")=1,
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"create segment element"
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)
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.def("__repr__", &ToString<Segment>)
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.def_property_readonly("vertices",
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FunctionPointer ([](const Segment & self) -> py::list
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{
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py::list li;
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for (int i = 0; i < 2; i++)
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li.append (py::cast(self[i]));
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return li;
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}))
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.def_property_readonly("points",
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FunctionPointer ([](const Segment & self) -> py::list
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{
|
|
py::list li;
|
|
for (int i = 0; i < self.GetNP(); i++)
|
|
li.append (py::cast(self[i]));
|
|
return li;
|
|
}))
|
|
.def_property_readonly("surfaces",
|
|
FunctionPointer ([](const Segment & self) -> py::list
|
|
{
|
|
py::list li;
|
|
li.append (py::cast(self.surfnr1));
|
|
li.append (py::cast(self.surfnr2));
|
|
return li;
|
|
}))
|
|
.def_property_readonly("index", FunctionPointer([](const Segment &self) -> size_t
|
|
{
|
|
return self.si;
|
|
}))
|
|
.def_property_readonly("edgenr", FunctionPointer([](const Segment & self) -> size_t
|
|
{
|
|
return self.edgenr;
|
|
}))
|
|
;
|
|
|
|
|
|
py::class_<Element0d>(m, "Element0D")
|
|
.def(py::init([](PointIndex vertex, int index)
|
|
{
|
|
Element0d * instance = new Element0d;
|
|
instance->pnum = vertex;
|
|
instance->index = index;
|
|
return instance;
|
|
}),
|
|
py::arg("vertex"),
|
|
py::arg("index")=1,
|
|
"create point element"
|
|
)
|
|
.def("__repr__", &ToString<Element0d>)
|
|
.def_property_readonly("vertices",
|
|
FunctionPointer ([](const Element0d & self) -> py::list
|
|
{
|
|
py::list li;
|
|
li.append (py::cast(self.pnum));
|
|
return li;
|
|
}))
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
py::class_<FaceDescriptor>(m, "FaceDescriptor")
|
|
.def(py::init<const FaceDescriptor&>())
|
|
.def(py::init([](int surfnr, int domin, int domout, int bc)
|
|
{
|
|
FaceDescriptor * instance = new FaceDescriptor();
|
|
instance->SetSurfNr(surfnr);
|
|
instance->SetDomainIn(domin);
|
|
instance->SetDomainOut(domout);
|
|
instance->SetBCProperty(bc);
|
|
return instance;
|
|
}),
|
|
py::arg("surfnr")=1,
|
|
py::arg("domin")=1,
|
|
py::arg("domout")=py::int_(0),
|
|
py::arg("bc")=py::int_(0),
|
|
"create facedescriptor")
|
|
.def("__str__", &ToString<FaceDescriptor>)
|
|
.def("__repr__", &ToString<FaceDescriptor>)
|
|
.def_property("surfnr", &FaceDescriptor::SurfNr, &FaceDescriptor::SetSurfNr)
|
|
.def_property("domin", &FaceDescriptor::DomainIn, &FaceDescriptor::SetDomainIn)
|
|
.def_property("domout", &FaceDescriptor::DomainOut, &FaceDescriptor::SetDomainOut)
|
|
.def_property("bc", &FaceDescriptor::BCProperty, &FaceDescriptor::SetBCProperty)
|
|
.def_property("bcname",
|
|
[](FaceDescriptor & self) -> string { return self.GetBCName(); },
|
|
[](FaceDescriptor & self, string name) { self.SetBCName(new string(name)); } // memleak
|
|
)
|
|
.def_property("color", &FaceDescriptor::SurfColour, &FaceDescriptor::SetSurfColour )
|
|
;
|
|
|
|
|
|
|
|
ExportArray<Element,size_t>(m);
|
|
ExportArray<Element2d,SurfaceElementIndex>(m);
|
|
ExportArray<Segment,size_t>(m);
|
|
ExportArray<Element0d>(m);
|
|
ExportArray<MeshPoint,PointIndex>(m);
|
|
ExportArray<FaceDescriptor>(m);
|
|
|
|
py::implicitly_convertible< int, PointIndex>();
|
|
|
|
py::class_<NetgenGeometry, shared_ptr<NetgenGeometry>> (m, "NetgenGeometry", py::dynamic_attr())
|
|
;
|
|
|
|
py::class_<Mesh,shared_ptr<Mesh>>(m, "Mesh")
|
|
// .def(py::init<>("create empty mesh"))
|
|
|
|
.def(py::init( [] (int dim, NgMPI_Comm comm)
|
|
{
|
|
auto mesh = make_shared<Mesh>();
|
|
mesh->SetCommunicator(comm);
|
|
mesh -> SetDimension(dim);
|
|
SetGlobalMesh(mesh); // for visualization
|
|
mesh -> SetGeometry (nullptr);
|
|
return mesh;
|
|
} ),
|
|
py::arg("dim")=3, py::arg("comm")=NgMPI_Comm{}
|
|
)
|
|
.def(NGSPickle<Mesh>())
|
|
.def_property_readonly("comm", [](const Mesh & amesh) -> NgMPI_Comm
|
|
{ return amesh.GetCommunicator(); },
|
|
"MPI-communicator the Mesh lives in")
|
|
/*
|
|
.def("__init__",
|
|
[](Mesh *instance, int dim)
|
|
{
|
|
new (instance) Mesh();
|
|
instance->SetDimension(dim);
|
|
},
|
|
py::arg("dim")=3
|
|
)
|
|
*/
|
|
|
|
.def_property_readonly("_timestamp", &Mesh::GetTimeStamp)
|
|
.def_property_readonly("ne", [](Mesh& m) { return m.GetNE(); })
|
|
.def("Distribute", [](shared_ptr<Mesh> self, NgMPI_Comm comm) {
|
|
self->SetCommunicator(comm);
|
|
if(comm.Size()==1) return self;
|
|
// if(MyMPI_GetNTasks(comm)==2) throw NgException("Sorry, cannot handle communicators with NP=2!");
|
|
// cout << " rank " << MyMPI_GetId(comm) << " of " << MyMPI_GetNTasks(comm) << " called Distribute " << endl;
|
|
if(comm.Rank()==0) self->Distribute();
|
|
else self->SendRecvMesh();
|
|
return self;
|
|
}, py::arg("comm"))
|
|
.def_static("Receive", [](NgMPI_Comm comm) -> shared_ptr<Mesh> {
|
|
auto mesh = make_shared<Mesh>();
|
|
mesh->SetCommunicator(comm);
|
|
mesh->SendRecvMesh();
|
|
return mesh;
|
|
}, py::arg("comm"))
|
|
.def("Load", FunctionPointer
|
|
([](shared_ptr<Mesh> self, const string & filename)
|
|
{
|
|
|
|
auto comm = self->GetCommunicator();
|
|
int id = comm.Rank();
|
|
int ntasks = comm.Size();
|
|
auto & mesh = self;
|
|
|
|
{
|
|
ifstream infile(filename.c_str());
|
|
if(!infile.good())
|
|
throw NgException(string("Error opening file ") + filename);
|
|
}
|
|
|
|
if ( filename.find(".vol") == string::npos )
|
|
{
|
|
if(ntasks>1)
|
|
throw NgException("Not sure what to do with this?? Does this work with MPI??");
|
|
mesh->SetCommunicator(comm);
|
|
ReadFile(*mesh,filename.c_str());
|
|
//mesh->SetGlobalH (mparam.maxh);
|
|
//mesh->CalcLocalH();
|
|
return;
|
|
}
|
|
|
|
istream * infile;
|
|
NgArray<char> buf; // for distributing geometry!
|
|
int strs;
|
|
|
|
if( id == 0) {
|
|
|
|
if (filename.substr (filename.length()-3, 3) == ".gz")
|
|
infile = new igzstream (filename.c_str());
|
|
else
|
|
infile = new ifstream (filename.c_str());
|
|
mesh -> Load(*infile);
|
|
|
|
// make string from rest of file (for geometry info!)
|
|
// (this might be empty, in which case we take the global ng_geometry)
|
|
stringstream geom_part;
|
|
geom_part << infile->rdbuf();
|
|
string geom_part_string = geom_part.str();
|
|
strs = geom_part_string.size();
|
|
// buf = new char[strs];
|
|
buf.SetSize(strs);
|
|
memcpy(&buf[0], geom_part_string.c_str(), strs*sizeof(char));
|
|
|
|
delete infile;
|
|
|
|
if (ntasks > 1)
|
|
{
|
|
|
|
char * weightsfilename = new char [filename.size()+1];
|
|
strcpy (weightsfilename, filename.c_str());
|
|
weightsfilename[strlen (weightsfilename)-3] = 'w';
|
|
weightsfilename[strlen (weightsfilename)-2] = 'e';
|
|
weightsfilename[strlen (weightsfilename)-1] = 'i';
|
|
|
|
ifstream weightsfile(weightsfilename);
|
|
delete [] weightsfilename;
|
|
|
|
if (!(weightsfile.good()))
|
|
{
|
|
// cout << "regular distribute" << endl;
|
|
mesh -> Distribute();
|
|
}
|
|
else
|
|
{
|
|
char str[20];
|
|
bool endfile = false;
|
|
int n, dummy;
|
|
|
|
NgArray<int> segment_weights;
|
|
NgArray<int> surface_weights;
|
|
NgArray<int> volume_weights;
|
|
|
|
while (weightsfile.good() && !endfile)
|
|
{
|
|
weightsfile >> str;
|
|
|
|
if (strcmp (str, "edgeweights") == 0)
|
|
{
|
|
weightsfile >> n;
|
|
segment_weights.SetSize(n);
|
|
for (int i = 0; i < n; i++)
|
|
weightsfile >> dummy >> segment_weights[i];
|
|
}
|
|
|
|
if (strcmp (str, "surfaceweights") == 0)
|
|
{
|
|
weightsfile >> n;
|
|
surface_weights.SetSize(n);
|
|
for (int i=0; i<n; i++)
|
|
weightsfile >> dummy >> surface_weights[i];
|
|
}
|
|
|
|
if (strcmp (str, "volumeweights") == 0)
|
|
{
|
|
weightsfile >> n;
|
|
volume_weights.SetSize(n);
|
|
for (int i=0; i<n; i++)
|
|
weightsfile >> dummy >> volume_weights[i];
|
|
}
|
|
|
|
if (strcmp (str, "endfile") == 0)
|
|
endfile = true;
|
|
}
|
|
|
|
mesh -> Distribute(volume_weights, surface_weights, segment_weights);
|
|
}
|
|
} // ntasks>1 end
|
|
} // id==0 end
|
|
else {
|
|
mesh->SendRecvMesh();
|
|
}
|
|
|
|
if(ntasks>1) {
|
|
#ifdef PARALLEL
|
|
/** Scatter the geometry-string (no dummy-implementation in mpi_interface) **/
|
|
int strs = buf.Size();
|
|
MyMPI_Bcast(strs, comm);
|
|
if(strs>0)
|
|
MyMPI_Bcast(buf, comm);
|
|
#endif
|
|
}
|
|
|
|
shared_ptr<NetgenGeometry> geo;
|
|
if(buf.Size()) { // if we had geom-info in the file, take it
|
|
istringstream geom_infile(string((const char*)&buf[0], buf.Size()));
|
|
geo = geometryregister.LoadFromMeshFile(geom_infile);
|
|
}
|
|
if(geo!=nullptr) mesh->SetGeometry(geo);
|
|
else if(ng_geometry!=nullptr) mesh->SetGeometry(ng_geometry);
|
|
}),py::call_guard<py::gil_scoped_release>())
|
|
// static_cast<void(Mesh::*)(const string & name)>(&Mesh::Load))
|
|
.def("Save", static_cast<void(Mesh::*)(const string & name)const>(&Mesh::Save),py::call_guard<py::gil_scoped_release>())
|
|
.def("Export",
|
|
[] (Mesh & self, string filename, string format)
|
|
{
|
|
if (WriteUserFormat (format, self, /* *self.GetGeometry(), */ filename))
|
|
{
|
|
string err = string ("nothing known about format")+format;
|
|
NgArray<const char*> names, extensions;
|
|
RegisterUserFormats (names, extensions);
|
|
err += "\navailable formats are:\n";
|
|
for (auto name : names)
|
|
err += string("'") + name + "'\n";
|
|
throw NgException (err);
|
|
}
|
|
},
|
|
py::arg("filename"), py::arg("format"),py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def_property("dim", &Mesh::GetDimension, &Mesh::SetDimension)
|
|
|
|
.def("Elements3D",
|
|
static_cast<Array<Element>&(Mesh::*)()> (&Mesh::VolumeElements),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Elements2D",
|
|
static_cast<Array<Element2d,SurfaceElementIndex>&(Mesh::*)()> (&Mesh::SurfaceElements),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Elements1D",
|
|
static_cast<Array<Segment>&(Mesh::*)()> (&Mesh::LineSegments),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Elements0D", FunctionPointer([] (Mesh & self) -> Array<Element0d>&
|
|
{
|
|
return self.pointelements;
|
|
} ),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Points",
|
|
static_cast<Mesh::T_POINTS&(Mesh::*)()> (&Mesh::Points),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("FaceDescriptor", static_cast<FaceDescriptor&(Mesh::*)(int)> (&Mesh::GetFaceDescriptor),
|
|
py::return_value_policy::reference)
|
|
.def("GetNFaceDescriptors", &Mesh::GetNFD)
|
|
|
|
.def("GetVolumeNeighboursOfSurfaceElement", [](Mesh & self, size_t sel)
|
|
{
|
|
int elnr1, elnr2;
|
|
self.GetTopology().GetSurface2VolumeElement(sel+1, elnr1, elnr2);
|
|
return py::make_tuple(elnr1, elnr2);
|
|
}, "Returns element nrs of volume element connected to surface element, -1 if no volume element")
|
|
|
|
.def("GetNCD2Names", &Mesh::GetNCD2Names)
|
|
|
|
|
|
.def("__getitem__", [](const Mesh & self, PointIndex id) { return self[id]; })
|
|
.def("__getitem__", [](const Mesh & self, ElementIndex id) { return self[id]; })
|
|
.def("__getitem__", [](const Mesh & self, SurfaceElementIndex id) { return self[id]; })
|
|
.def("__getitem__", [](const Mesh & self, SegmentIndex id) { return self[id]; })
|
|
|
|
.def("__setitem__", [](Mesh & self, PointIndex id, const MeshPoint & mp) { return self[id] = mp; })
|
|
|
|
.def ("Add", [](Mesh & self, MeshPoint p)
|
|
{
|
|
return self.AddPoint (Point3d(p));
|
|
})
|
|
|
|
.def ("Add", [](Mesh & self, const Element & el)
|
|
{
|
|
return self.AddVolumeElement (el);
|
|
})
|
|
|
|
.def ("Add", [](Mesh & self, const Element2d & el)
|
|
{
|
|
return self.AddSurfaceElement (el);
|
|
})
|
|
|
|
.def ("Add", [](Mesh & self, const Segment & el)
|
|
{
|
|
return self.AddSegment (el);
|
|
})
|
|
|
|
.def ("Add", [](Mesh & self, const Element0d & el)
|
|
{
|
|
return self.pointelements.Append (el);
|
|
})
|
|
|
|
.def ("Add", [](Mesh & self, const FaceDescriptor & fd)
|
|
{
|
|
return self.AddFaceDescriptor (fd);
|
|
})
|
|
|
|
.def ("DeleteSurfaceElement",
|
|
[](Mesh & self, SurfaceElementIndex i)
|
|
{
|
|
return self.Delete(i);
|
|
})
|
|
|
|
.def ("Compress", [](Mesh & self)
|
|
{
|
|
return self.Compress ();
|
|
} ,py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("AddRegion", [] (Mesh & self, string name, int dim) -> int
|
|
{
|
|
auto & regionnames = self.GetRegionNamesCD(self.GetDimension()-dim);
|
|
regionnames.Append (new string(name));
|
|
int idx = regionnames.Size();
|
|
if (dim == 2)
|
|
{
|
|
FaceDescriptor fd;
|
|
fd.SetBCName(regionnames.Last());
|
|
fd.SetBCProperty(idx);
|
|
self.AddFaceDescriptor(fd);
|
|
}
|
|
return idx;
|
|
}, py::arg("name"), py::arg("dim"))
|
|
|
|
.def ("SetBCName", &Mesh::SetBCName)
|
|
.def ("GetBCName", FunctionPointer([](Mesh & self, int bc)->string
|
|
{ return self.GetBCName(bc); }))
|
|
.def ("SetMaterial", &Mesh::SetMaterial)
|
|
.def ("GetMaterial", FunctionPointer([](Mesh & self, int domnr)
|
|
{ return string(self.GetMaterial(domnr)); }))
|
|
|
|
.def ("GetCD2Name", &Mesh::GetCD2Name)
|
|
.def ("SetCD2Name", &Mesh::SetCD2Name)
|
|
|
|
.def ("GetCD3Name", &Mesh::GetCD3Name)
|
|
.def ("SetCD3Name", &Mesh::SetCD3Name)
|
|
|
|
.def ("AddPointIdentification", [](Mesh & self, py::object pindex1, py::object pindex2, int identnr, int type)
|
|
{
|
|
if(py::extract<PointIndex>(pindex1).check() && py::extract<PointIndex>(pindex2).check())
|
|
{
|
|
self.GetIdentifications().Add (py::extract<PointIndex>(pindex1)(), py::extract<PointIndex>(pindex2)(), identnr);
|
|
self.GetIdentifications().SetType(identnr, Identifications::ID_TYPE(type)); // type = 2 ... periodic
|
|
}
|
|
},
|
|
//py::default_call_policies(),
|
|
py::arg("pid1"),
|
|
py::arg("pid2"),
|
|
py::arg("identnr"),
|
|
py::arg("type"))
|
|
.def("IdentifyPeriodicBoundaries", &Mesh::IdentifyPeriodicBoundaries,
|
|
py::arg("face1"), py::arg("face2"), py::arg("mapping"), py::arg("point_tolerance") = -1.)
|
|
.def("GetNrIdentifications", [](Mesh& self)
|
|
{
|
|
return self.GetIdentifications().GetMaxNr();
|
|
})
|
|
.def ("CalcLocalH", &Mesh::CalcLocalH)
|
|
.def ("SetMaxHDomain", [] (Mesh& self, py::list maxhlist)
|
|
{
|
|
NgArray<double> maxh;
|
|
for(auto el : maxhlist)
|
|
maxh.Append(py::cast<double>(el));
|
|
self.SetMaxHDomain(maxh);
|
|
})
|
|
.def ("GenerateVolumeMesh",
|
|
[](Mesh & self, MeshingParameters* pars,
|
|
py::kwargs kwargs)
|
|
{
|
|
MeshingParameters mp;
|
|
if(pars) mp = *pars;
|
|
{
|
|
py::gil_scoped_acquire acquire;
|
|
CreateMPfromKwargs(mp, kwargs);
|
|
}
|
|
MeshVolume (mp, self);
|
|
OptimizeVolume (mp, self);
|
|
}, py::arg("mp")=nullptr,
|
|
meshingparameter_description.c_str(),
|
|
py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("OptimizeVolumeMesh", [](Mesh & self, MeshingParameters* pars)
|
|
{
|
|
MeshingParameters mp;
|
|
if(pars) mp = *pars;
|
|
else mp.optsteps3d = 5;
|
|
OptimizeVolume (mp, self);
|
|
}, py::arg("mp"), py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("OptimizeMesh2d", [](Mesh & self)
|
|
{
|
|
self.CalcLocalH(0.5);
|
|
MeshingParameters mp;
|
|
mp.optsteps2d = 5;
|
|
Optimize2d (self, mp);
|
|
},py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("Refine", FunctionPointer
|
|
([](Mesh & self)
|
|
{
|
|
self.GetGeometry()->GetRefinement().Refine(self);
|
|
self.UpdateTopology();
|
|
}),py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("SecondOrder", FunctionPointer
|
|
([](Mesh & self)
|
|
{
|
|
self.GetGeometry()->GetRefinement().MakeSecondOrder(self);
|
|
}))
|
|
|
|
.def ("GetGeometry", [] (Mesh& self) { return self.GetGeometry(); })
|
|
.def ("SetGeometry", [](Mesh & self, shared_ptr<NetgenGeometry> geo)
|
|
{
|
|
self.SetGeometry(geo);
|
|
})
|
|
|
|
/*
|
|
.def ("SetGeometry", FunctionPointer
|
|
([](Mesh & self, shared_ptr<CSGeometry> geo)
|
|
{
|
|
self.SetGeometry(geo);
|
|
}))
|
|
*/
|
|
|
|
.def ("BuildSearchTree", &Mesh::BuildElementSearchTree,py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("BoundaryLayer", [](Mesh & self, variant<string, int> boundary,
|
|
variant<double, py::list> thickness,
|
|
variant<string, py::list> material,
|
|
variant<string, int> domain, bool outside,
|
|
bool grow_edges)
|
|
{
|
|
BoundaryLayerParameters blp;
|
|
if(int* bc = get_if<int>(&boundary); bc)
|
|
{
|
|
for (int i = 1; i <= self.GetNFD(); i++)
|
|
if(self.GetFaceDescriptor(i).BCProperty() == *bc)
|
|
blp.surfid.Append (i);
|
|
}
|
|
else
|
|
{
|
|
regex pattern(*get_if<string>(&boundary));
|
|
for(int i = 1; i<=self.GetNFD(); i++)
|
|
{
|
|
auto& fd = self.GetFaceDescriptor(i);
|
|
if(regex_match(fd.GetBCName(), pattern))
|
|
{
|
|
auto dom_pattern = get_if<string>(&domain);
|
|
// only add if adjacent to domain
|
|
if(dom_pattern)
|
|
{
|
|
regex pattern(*dom_pattern);
|
|
if(regex_match(self.GetMaterial(fd.DomainIn()), pattern) || (fd.DomainOut() > 0 ? regex_match(self.GetMaterial(fd.DomainOut()), pattern) : false))
|
|
blp.surfid.Append(i);
|
|
}
|
|
else
|
|
blp.surfid.Append(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(double* pthickness = get_if<double>(&thickness); pthickness)
|
|
{
|
|
blp.heights.Append(*pthickness);
|
|
}
|
|
else
|
|
{
|
|
auto thicknesses = *get_if<py::list>(&thickness);
|
|
for(auto val : thicknesses)
|
|
blp.heights.Append(val.cast<double>());
|
|
}
|
|
|
|
auto prismlayers = blp.heights.Size();
|
|
auto first_new_mat = self.GetNDomains() + 1;
|
|
auto max_dom_nr = first_new_mat;
|
|
if(string* pmaterial = get_if<string>(&material); pmaterial)
|
|
{
|
|
self.SetMaterial(first_new_mat, *pmaterial);
|
|
for(auto i : Range(prismlayers))
|
|
blp.new_matnrs.Append(first_new_mat);
|
|
}
|
|
else
|
|
{
|
|
auto materials = *get_if<py::list>(&material);
|
|
if(py::len(materials) != prismlayers)
|
|
throw Exception("Length of thicknesses and materials must be same!");
|
|
for(auto i : Range(prismlayers))
|
|
{
|
|
self.SetMaterial(first_new_mat+i, materials[i].cast<string>());
|
|
blp.new_matnrs.Append(first_new_mat + i);
|
|
}
|
|
max_dom_nr += prismlayers-1;
|
|
}
|
|
|
|
blp.domains.SetSize(max_dom_nr + 1); // one based
|
|
blp.domains.Clear();
|
|
if(string* pdomain = get_if<string>(&domain); pdomain)
|
|
{
|
|
regex pattern(*pdomain);
|
|
for(auto i : Range(1, first_new_mat))
|
|
if(regex_match(self.GetMaterial(i), pattern))
|
|
blp.domains.SetBit(i);
|
|
}
|
|
else
|
|
{
|
|
auto idomain = *get_if<int>(&domain);
|
|
blp.domains.SetBit(idomain);
|
|
}
|
|
// bits for new domains must be set
|
|
if(!outside)
|
|
for(auto i : Range(first_new_mat, max_dom_nr+1))
|
|
blp.domains.SetBit(i);
|
|
|
|
blp.outside = outside;
|
|
blp.grow_edges = grow_edges;
|
|
|
|
GenerateBoundaryLayer (self, blp);
|
|
self.UpdateTopology();
|
|
}, py::arg("boundary"), py::arg("thickness"), py::arg("material"),
|
|
py::arg("domains") = ".*", py::arg("outside") = false,
|
|
py::arg("grow_edges") = false,
|
|
R"delimiter(
|
|
Add boundary layer to mesh.
|
|
|
|
Parameters
|
|
----------
|
|
|
|
boundary : string or int
|
|
Boundary name or number.
|
|
|
|
thickness : float or List[float]
|
|
Thickness of boundary layer(s).
|
|
|
|
material : str or List[str]
|
|
Material name of boundary layer(s).
|
|
|
|
domain : str or int
|
|
Regexp for domain boundarylayer is going into.
|
|
|
|
outside : bool = False
|
|
If true add the layer on the outside
|
|
|
|
grow_edges : bool = False
|
|
Grow boundary layer over edges.
|
|
|
|
)delimiter")
|
|
|
|
.def ("EnableTable", [] (Mesh & self, string name, bool set)
|
|
{
|
|
if (name == "edges")
|
|
const_cast<MeshTopology&>(self.GetTopology()).SetBuildEdges(set);
|
|
if (name == "faces")
|
|
const_cast<MeshTopology&>(self.GetTopology()).SetBuildFaces(set);
|
|
},
|
|
py::arg("name"), py::arg("set")=true)
|
|
|
|
.def ("Scale", [](Mesh & self, double factor)
|
|
{
|
|
for(auto i = 0; i<self.GetNP();i++)
|
|
self.Point(i).Scale(factor);
|
|
})
|
|
.def ("Copy", [](Mesh & self)
|
|
{
|
|
auto m2 = make_shared<Mesh> ();
|
|
*m2 = self;
|
|
return m2;
|
|
})
|
|
.def ("CalcMinMaxAngle", [](Mesh & self, double badel_limit)
|
|
{
|
|
double values[4];
|
|
self.CalcMinMaxAngle (badel_limit, values);
|
|
py::dict res;
|
|
res["trig"] = py::make_tuple( values[0], values[1] );
|
|
res["tet"] = py::make_tuple( values[2], values[3] );
|
|
return res;
|
|
}, py::arg("badelement_limit")=175.0)
|
|
.def ("Update", [](Mesh & self)
|
|
{
|
|
self.SetNextTimeStamp();
|
|
})
|
|
.def ("CalcTotalBadness", &Mesh::CalcTotalBad)
|
|
.def ("GetQualityHistogram", &Mesh::GetQualityHistogram)
|
|
;
|
|
|
|
m.def("ImportMesh", [](const string& filename)
|
|
{
|
|
auto mesh = make_shared<Mesh>();
|
|
ReadFile(*mesh, filename);
|
|
return mesh;
|
|
}, py::arg("filename"),
|
|
R"delimiter(Import mesh from other file format, supported file formats are:
|
|
Neutral format (*.mesh, *.emt)
|
|
Surface file (*.surf)
|
|
Universal format (*.unv)
|
|
Olaf format (*.emt)
|
|
Tet format (*.tet)
|
|
Pro/ENGINEER format (*.fnf)
|
|
)delimiter");
|
|
py::enum_<MESHING_STEP>(m,"MeshingStep")
|
|
.value("ANALYSE", MESHCONST_ANALYSE)
|
|
.value("MESHEDGES", MESHCONST_MESHEDGES)
|
|
.value("MESHSURFACE", MESHCONST_OPTSURFACE)
|
|
.value("MESHVOLUME", MESHCONST_OPTVOLUME)
|
|
;
|
|
|
|
typedef MeshingParameters MP;
|
|
auto mp = py::class_<MP> (m, "MeshingParameters")
|
|
.def(py::init<>())
|
|
.def(py::init([](MeshingParameters* other, py::kwargs kwargs)
|
|
{
|
|
MeshingParameters mp;
|
|
if(other) mp = *other;
|
|
CreateMPfromKwargs(mp, kwargs, false);
|
|
return mp;
|
|
}), py::arg("mp")=nullptr, meshingparameter_description.c_str())
|
|
.def("__str__", &ToString<MP>)
|
|
.def("RestrictH", FunctionPointer
|
|
([](MP & mp, double x, double y, double z, double h)
|
|
{
|
|
mp.meshsize_points.Append ( MeshingParameters::MeshSizePoint (Point<3> (x,y,z), h));
|
|
}),
|
|
py::arg("x"), py::arg("y"), py::arg("z"), py::arg("h")
|
|
)
|
|
;
|
|
|
|
m.def("SetTestoutFile", FunctionPointer ([] (const string & filename)
|
|
{
|
|
delete testout;
|
|
testout = new ofstream (filename);
|
|
}));
|
|
|
|
m.def("SetMessageImportance", FunctionPointer ([] (int importance)
|
|
{
|
|
int old = printmessage_importance;
|
|
printmessage_importance = importance;
|
|
return old;
|
|
}));
|
|
|
|
|
|
m.def("ReadCGNSFile", &ReadCGNSFile, py::arg("filename"), py::arg("base")=1, "Read mesh and solution vectors from CGNS file");
|
|
}
|
|
|
|
PYBIND11_MODULE(libmesh, m) {
|
|
ExportNetgenMeshing(m);
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|