mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-27 06:10:34 +05:00
980 lines
37 KiB
C++
980 lines
37 KiB
C++
#ifdef NG_PYTHON
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#include <../general/ngpython.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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#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 = ng_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 = ng_comm)
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{ return d; }
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#endif
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}
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template <typename T, int BASE = 0, typename TIND = int>
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void ExportArray (py::module &m)
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{
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using TA = Array<T,BASE,TIND>;
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string name = string("Array_") + typeid(T).name();
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py::class_<Array<T,BASE,TIND>>(m, name.c_str())
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.def ("__len__", [] ( Array<T,BASE,TIND> &self ) { return self.Size(); } )
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.def ("__getitem__",
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FunctionPointer ([](Array<T,BASE,TIND> & self, TIND i) -> T&
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{
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if (i < BASE || i >= BASE+self.Size())
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throw py::index_error();
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return self[i];
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}),
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py::return_value_policy::reference)
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.def("__iter__", [] ( TA & self) {
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return py::make_iterator (self.begin(),self.end());
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}, py::keep_alive<0,1>()) // keep array alive while iterator is used
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;
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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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#ifdef PARALLEL
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.def("Barrier", [](NgMPI_Comm & c) { MPI_Barrier(c); })
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.def("WTime", [](NgMPI_Comm & c) { return MPI_Wtime(); })
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#else
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.def("Barrier", [](NgMPI_Comm & c) { })
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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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MPI_Comm subcomm = MyMPI_SubCommunicator(c, procs);
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return NgMPI_Comm(subcomm, true);
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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", FunctionPointer
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([](double x, double y, double z) { return global_trafo(Point<3>(x,y,z)); }));
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m.def ("Pnt", FunctionPointer
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([](double x, double y) { return Point<2>(x,y); }));
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/*
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// duplicated functions ????
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m.def ("Pnt", FunctionPointer
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([](double x, double y, double z) { return Point<3>(x,y,z); }));
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m.def ("Pnt", FunctionPointer
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([](double x, double y) { return Point<2>(x,y); }));
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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)
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.def(double()*py::self)
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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)
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.def(double()*py::self)
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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", 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>>())
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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", FunctionPointer([](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__", FunctionPointer([](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__", FunctionPointer([](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, py::list vertices)
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{
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std::map<int, ELEMENT_TYPE> types = {{4, TET},
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{5, PYRAMID},
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{6, PRISM},
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{8, HEX},
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{10, TET10},
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{13, PYRAMID13},
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{15, PRISM15},
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{20, HEX20}};
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int np = py::len(vertices);
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auto newel = new Element(types[np]);
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for(int i=0; i<np; i++)
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(*newel)[i] = py::cast<PointIndex>(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, py::list vertices)
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{
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Element2d * newel = nullptr;
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if (py::len(vertices) == 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] = py::extract<PointIndex>(vertices[i])();
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newel->SetIndex(index);
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}
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else if (py::len(vertices) == 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] = py::extract<PointIndex>(vertices[i])();
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newel->SetIndex(index);
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}
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else if (py::len(vertices) == 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] = py::extract<PointIndex>(vertices[i])();
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newel->SetIndex(index);
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}
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else if (py::len(vertices) == 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] = py::extract<PointIndex>(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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{
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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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.def_property_readonly("surfaces",
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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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li.append (py::cast(self.surfnr1));
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li.append (py::cast(self.surfnr2));
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return li;
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}))
|
|
.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("SetSurfaceColor", [](FaceDescriptor & self, py::list color )
|
|
{
|
|
Vec3d c;
|
|
c.X() = py::extract<double>(color[0])();
|
|
c.Y() = py::extract<double>(color[1])();
|
|
c.Z() = py::extract<double>(color[2])();
|
|
self.SetSurfColour(c);
|
|
})
|
|
;
|
|
|
|
|
|
|
|
ExportArray<Element,0,size_t>(m);
|
|
ExportArray<Element2d,0,size_t>(m);
|
|
ExportArray<Segment,0,size_t>(m);
|
|
ExportArray<Element0d>(m);
|
|
ExportArray<MeshPoint,PointIndex::BASE,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(MPI_COMM_WORLD) // NgMPI_Comm(ng_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("Distribute", [](shared_ptr<Mesh> self, NgMPI_Comm comm) {
|
|
self->SetCommunicator(comm);
|
|
if(MyMPI_GetNTasks(comm)==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(MyMPI_GetId(comm)==0) self->Distribute();
|
|
else self->SendRecvMesh();
|
|
return self;
|
|
}, py::arg("comm")=NgMPI_Comm(ng_comm))
|
|
.def("Receive", [](NgMPI_Comm comm) {
|
|
auto mesh = make_shared<Mesh>();
|
|
mesh->SetCommunicator(comm);
|
|
mesh->SendRecvMesh();
|
|
return mesh;
|
|
})
|
|
.def("Load", FunctionPointer
|
|
([](Mesh & self, const string & filename)
|
|
{
|
|
istream * infile;
|
|
|
|
MPI_Comm comm = self.GetCommunicator();
|
|
id = MyMPI_GetId(comm);
|
|
ntasks = MyMPI_GetNTasks(comm);
|
|
|
|
#ifdef PARALLEL
|
|
char* buf = nullptr;
|
|
int strs = 0;
|
|
if(id==0) {
|
|
#endif
|
|
if (filename.find(".vol.gz") != string::npos)
|
|
infile = new igzstream (filename.c_str());
|
|
else
|
|
infile = new ifstream (filename.c_str());
|
|
// ifstream input(filename);
|
|
#ifdef PARALLEL
|
|
//still inside id==0-bracket...
|
|
self.Load(*infile);
|
|
self.Distribute();
|
|
|
|
/** Copy the rest of the file into a string (for geometry) **/
|
|
stringstream geom_part;
|
|
geom_part << infile->rdbuf();
|
|
string geom_part_string = geom_part.str();
|
|
strs = geom_part_string.size();
|
|
buf = new char[strs];
|
|
memcpy(buf, geom_part_string.c_str(), strs*sizeof(char));
|
|
}
|
|
else {
|
|
self.SendRecvMesh();
|
|
}
|
|
|
|
/** Scatter the geometry-string **/
|
|
MPI_Bcast(&strs, 1, MPI_INT, 0, comm);
|
|
if(id!=0)
|
|
buf = new char[strs];
|
|
MPI_Bcast(buf, strs, MPI_CHAR, 0, comm);
|
|
if(id==0)
|
|
delete infile;
|
|
infile = new istringstream(string((const char*)buf, (size_t)strs));
|
|
delete[] buf;
|
|
|
|
#else
|
|
self.Load(*infile);
|
|
#endif
|
|
for (int i = 0; i < geometryregister.Size(); i++)
|
|
{
|
|
NetgenGeometry * hgeom = geometryregister[i]->LoadFromMeshFile (*infile);
|
|
if (hgeom)
|
|
{
|
|
ng_geometry.reset (hgeom);
|
|
self.SetGeometry(ng_geometry);
|
|
break;
|
|
}
|
|
}
|
|
self.SetGeometry(ng_geometry);
|
|
delete infile;
|
|
}),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;
|
|
Array<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,0,size_t>&(Mesh::*)()> (&Mesh::VolumeElements),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Elements2D",
|
|
static_cast<Array<Element2d,0,size_t>&(Mesh::*)()> (&Mesh::SurfaceElements),
|
|
py::return_value_policy::reference)
|
|
|
|
.def("Elements1D",
|
|
static_cast<Array<Segment,0,size_t>&(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("GetNCD2Names", &Mesh::GetNCD2Names)
|
|
|
|
|
|
.def("__getitem__", FunctionPointer ([](const Mesh & self, PointIndex pi)
|
|
{
|
|
return self[pi];
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, MeshPoint p)
|
|
{
|
|
return self.AddPoint (Point3d(p));
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, const Element & el)
|
|
{
|
|
return self.AddVolumeElement (el);
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, const Element2d & el)
|
|
{
|
|
return self.AddSurfaceElement (el);
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, const Segment & el)
|
|
{
|
|
return self.AddSegment (el);
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, const Element0d & el)
|
|
{
|
|
return self.pointelements.Append (el);
|
|
}))
|
|
|
|
.def ("Add", FunctionPointer ([](Mesh & self, const FaceDescriptor & fd)
|
|
{
|
|
return self.AddFaceDescriptor (fd);
|
|
}))
|
|
|
|
.def ("DeleteSurfaceElement",
|
|
FunctionPointer ([](Mesh & self, SurfaceElementIndex i)
|
|
{
|
|
return self.DeleteSurfaceElement (i);
|
|
}))
|
|
|
|
.def ("Compress", FunctionPointer ([](Mesh & self)
|
|
{
|
|
return self.Compress ();
|
|
}),py::call_guard<py::gil_scoped_release>())
|
|
|
|
|
|
.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 ("CalcLocalH", &Mesh::CalcLocalH)
|
|
.def ("SetMaxHDomain", [] (Mesh& self, py::list maxhlist)
|
|
{
|
|
Array<double> maxh;
|
|
for(auto el : maxhlist)
|
|
maxh.Append(py::cast<double>(el));
|
|
self.SetMaxHDomain(maxh);
|
|
})
|
|
.def ("GenerateVolumeMesh",
|
|
[](Mesh & self, py::object pymp)
|
|
{
|
|
cout << "generate vol mesh" << endl;
|
|
|
|
MeshingParameters mp;
|
|
{
|
|
py::gil_scoped_acquire acquire;
|
|
if (py::extract<MeshingParameters>(pymp).check())
|
|
mp = py::extract<MeshingParameters>(pymp)();
|
|
else
|
|
{
|
|
mp.optsteps3d = 5;
|
|
}
|
|
}
|
|
MeshVolume (mp, self);
|
|
OptimizeVolume (mp, self);
|
|
},
|
|
py::arg("mp")=NGDummyArgument(),py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("OptimizeVolumeMesh", FunctionPointer
|
|
([](Mesh & self)
|
|
{
|
|
MeshingParameters mp;
|
|
mp.optsteps3d = 5;
|
|
OptimizeVolume (mp, self);
|
|
}),py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("Refine", FunctionPointer
|
|
([](Mesh & self)
|
|
{
|
|
if (self.GetGeometry())
|
|
self.GetGeometry()->GetRefinement().Refine(self);
|
|
else
|
|
Refinement().Refine(self);
|
|
self.UpdateTopology();
|
|
}),py::call_guard<py::gil_scoped_release>())
|
|
|
|
.def ("SecondOrder", FunctionPointer
|
|
([](Mesh & self)
|
|
{
|
|
if (self.GetGeometry())
|
|
self.GetGeometry()->GetRefinement().MakeSecondOrder(self);
|
|
else
|
|
Refinement().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", FunctionPointer
|
|
([](Mesh & self, int bc, py::list thicknesses, int volnr, py::list materials)
|
|
{
|
|
int n = py::len(thicknesses);
|
|
BoundaryLayerParameters blp;
|
|
|
|
for (int i = 1; i <= self.GetNFD(); i++)
|
|
if (self.GetFaceDescriptor(i).BCProperty() == bc)
|
|
blp.surfid.Append (i);
|
|
|
|
cout << "add layer at surfaces: " << blp.surfid << endl;
|
|
|
|
blp.prismlayers = n;
|
|
blp.growthfactor = 1.0;
|
|
|
|
// find max domain nr
|
|
int maxind = 0;
|
|
for (ElementIndex ei = 0; ei < self.GetNE(); ei++)
|
|
maxind = max (maxind, self[ei].GetIndex());
|
|
cout << "maxind = " << maxind << endl;
|
|
for ( int i=0; i<n; i++ )
|
|
{
|
|
blp.heights.Append( py::extract<double>(thicknesses[i])()) ;
|
|
blp.new_matnrs.Append( maxind+1+i );
|
|
self.SetMaterial (maxind+1+i, py::extract<string>(materials[i])().c_str());
|
|
}
|
|
blp.bulk_matnr = volnr;
|
|
GenerateBoundaryLayer (self, blp);
|
|
}
|
|
))
|
|
|
|
.def ("BoundaryLayer", FunctionPointer
|
|
([](Mesh & self, int bc, double thickness, int volnr, string material)
|
|
{
|
|
BoundaryLayerParameters blp;
|
|
|
|
for (int i = 1; i <= self.GetNFD(); i++)
|
|
if (self.GetFaceDescriptor(i).BCProperty() == bc)
|
|
blp.surfid.Append (i);
|
|
|
|
cout << "add layer at surfaces: " << blp.surfid << endl;
|
|
|
|
blp.prismlayers = 1;
|
|
blp.hfirst = thickness;
|
|
blp.growthfactor = 1.0;
|
|
|
|
// find max domain nr
|
|
int maxind = 0;
|
|
for (ElementIndex ei = 0; ei < self.GetNE(); ei++)
|
|
maxind = max (maxind, self[ei].GetIndex());
|
|
cout << "maxind = " << maxind << endl;
|
|
self.SetMaterial (maxind+1, material.c_str());
|
|
blp.new_matnr = maxind+1;
|
|
blp.bulk_matnr = volnr;
|
|
GenerateBoundaryLayer (self, blp);
|
|
}
|
|
))
|
|
|
|
.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", FunctionPointer([](Mesh & self, double factor)
|
|
{
|
|
for(auto i = 0; i<self.GetNP();i++)
|
|
self.Point(i).Scale(factor);
|
|
}))
|
|
|
|
;
|
|
|
|
|
|
py::enum_<MESHING_STEP>(m,"MeshingStep")
|
|
.value("MESHEDGES",MESHCONST_MESHEDGES)
|
|
.value("MESHSURFACE",MESHCONST_OPTSURFACE)
|
|
.value("MESHVOLUME",MESHCONST_OPTVOLUME)
|
|
;
|
|
|
|
typedef MeshingParameters MP;
|
|
py::class_<MP> (m, "MeshingParameters")
|
|
.def(py::init<>())
|
|
.def(py::init([](double maxh, bool quad_dominated, int optsteps2d, int optsteps3d,
|
|
MESHING_STEP perfstepsend, int only3D_domain, const string & meshsizefilename,
|
|
double grading, double curvaturesafety, double segmentsperedge)
|
|
{
|
|
MP * instance = new MeshingParameters;
|
|
instance->maxh = maxh;
|
|
instance->quad = int(quad_dominated);
|
|
instance->optsteps2d = optsteps2d;
|
|
instance->optsteps3d = optsteps3d;
|
|
instance->only3D_domain_nr = only3D_domain;
|
|
instance->perfstepsend = perfstepsend;
|
|
instance->meshsizefilename = meshsizefilename;
|
|
|
|
instance->grading = grading;
|
|
instance->curvaturesafety = curvaturesafety;
|
|
instance->segmentsperedge = segmentsperedge;
|
|
return instance;
|
|
}),
|
|
py::arg("maxh")=1000,
|
|
py::arg("quad_dominated")=false,
|
|
py::arg("optsteps2d") = 3,
|
|
py::arg("optsteps3d") = 3,
|
|
py::arg("perfstepsend") = MESHCONST_OPTVOLUME,
|
|
py::arg("only3D_domain") = 0,
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py::arg("meshsizefilename") = "",
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py::arg("grading")=0.3,
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py::arg("curvaturesafety")=2,
|
|
py::arg("segmentsperedge")=1,
|
|
"create meshing parameters"
|
|
)
|
|
.def("__str__", &ToString<MP>)
|
|
.def_property("maxh",
|
|
FunctionPointer ([](const MP & mp ) { return mp.maxh; }),
|
|
FunctionPointer ([](MP & mp, double maxh) { return mp.maxh = maxh; }))
|
|
.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;
|
|
}));
|
|
|
|
|
|
}
|
|
|
|
PYBIND11_MODULE(libmesh, m) {
|
|
ExportNetgenMeshing(m);
|
|
}
|
|
#endif
|
|
|
|
|
|
|
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|