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cleanup python export, generate mesh functions not monkeypatched

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This commit is contained in:
Christopher Lackner 2019-07-25 23:25:58 +02:00
parent c454163821
commit 091494c6b3
15 changed files with 314 additions and 176 deletions
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15
libsrc/core/utils.hpp
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@ -103,6 +103,21 @@ namespace ngcore
void operator delete[] (void * p) { aligned_free(p); }
};
// Two helper functions for string checking
inline bool StartsWith(std::string str, std::string start)
{
if(start.size() > str.size())
return false;
return std::equal(start.begin(), start.end(), str.begin());
}
inline bool EndsWith(std::string str, std::string end)
{
if(end.size() > str.size())
return false;
return std::equal(end.rbegin(), end.rend(), str.rbegin());
}
} // namespace ngcore
#endif // NETGEN_CORE_UTILS_HPP

31
libsrc/csg/python_csg.cpp
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@ -3,6 +3,7 @@
#include <../general/ngpython.hpp>
#include <core/python_ngcore.hpp>
#include <csg.hpp>
#include "../meshing/python_mesh.hpp"
using namespace netgen;
@ -693,26 +694,22 @@ However, when r = 0, the top part becomes a point(tip) and meshing fails!
res["max"] = MoveToNumpy(max);
return res;
}, py::call_guard<py::gil_scoped_release>())
;
m.def("GenerateMesh", FunctionPointer
([](shared_ptr<CSGeometry> geo, MeshingParameters & param)
.def("GenerateMesh", [](shared_ptr<CSGeometry> geo, py::kwargs kwargs)
{
auto dummy = make_shared<Mesh>();
SetGlobalMesh (dummy);
dummy->SetGeometry(geo);
MeshingParameters mp;
{
py::gil_scoped_acquire aq;
mp = CreateMPfromKwargs(kwargs);
}
auto mesh = make_shared<Mesh>();
SetGlobalMesh (mesh);
mesh->SetGeometry(geo);
ng_geometry = geo;
geo->FindIdenticSurfaces(1e-8 * geo->MaxSize());
try
{
geo->GenerateMesh (dummy, param);
}
catch (NgException ex)
{
cout << "Caught NgException: " << ex.What() << endl;
}
return dummy;
}),py::call_guard<py::gil_scoped_release>())
geo->GenerateMesh (mesh, mp);
return mesh;
}, meshingparameter_description.c_str(),
py::call_guard<py::gil_scoped_release>())
;
m.def("Save", FunctionPointer

16
libsrc/geom2d/python_geom2d.cpp
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@ -2,6 +2,7 @@
#include <../general/ngpython.hpp>
#include <core/python_ngcore.hpp>
#include "../meshing/python_mesh.hpp"
#include <meshing.hpp>
#include <geometry2d.hpp>
@ -362,16 +363,21 @@ DLL_HEADER void ExportGeom2d(py::module &m)
//cout << i << " : " << self.splines[i]->GetPoint(0.1) << " , " << self.splines[i]->GetPoint(0.5) << endl;
}
}))
.def("GenerateMesh", [](shared_ptr<SplineGeometry2d> self, MeshingParameters & mparam)
.def("GenerateMesh", [](shared_ptr<SplineGeometry2d> self, py::kwargs kwargs)
{
shared_ptr<Mesh> mesh = make_shared<Mesh> ();
MeshingParameters mp;
{
py::gil_scoped_acquire aq;
mp = CreateMPfromKwargs(kwargs);
}
auto mesh = make_shared<Mesh>();
mesh->SetGeometry(self);
SetGlobalMesh (mesh);
ng_geometry = self;
self->GenerateMesh(mesh, mparam);
self->GenerateMesh(mesh, mp);
return mesh;
},py::call_guard<py::gil_scoped_release>())
}, py::call_guard<py::gil_scoped_release>(),
meshingparameter_description.c_str())
;
}

30
libsrc/meshing/meshtype.hpp
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@ -1191,7 +1191,7 @@ namespace netgen
/// power of error (to approximate max err optimization)
double opterrpow = 2;
/// do block filling ?
int blockfill = 1;
bool blockfill = true;
/// block filling up to distance
double filldist = 0.1;
/// radius of local environment (times h)
@ -1199,11 +1199,11 @@ namespace netgen
/// radius of active environment (times h)
double relinnersafety = 3;
/// use local h ?
int uselocalh = 1;
bool uselocalh = true;
/// grading for local h
double grading = 0.3;
/// use delaunay meshing
int delaunay = 1;
bool delaunay = true;
/// maximal mesh size
double maxh = 1e10;
/// minimal mesh size
@ -1211,19 +1211,19 @@ namespace netgen
/// file for meshsize
string meshsizefilename = "";
/// start surfacemeshing from everywhere in surface
int startinsurface = 0;
bool startinsurface = false;
/// check overlapping surfaces (debug)
int checkoverlap = 1;
bool checkoverlap = true;
/// check overlapping surface mesh before volume meshing
int checkoverlappingboundary = 1;
bool checkoverlappingboundary = true;
/// check chart boundary (sometimes too restrictive)
int checkchartboundary = 1;
bool checkchartboundary = true;
/// safety factor for curvatures (elements per radius)
double curvaturesafety = 2;
/// minimal number of segments per edge
double segmentsperedge = 1;
/// use parallel threads
int parthread = 0;
bool parthread = 0;
/// weight of element size w.r.t element shape
double elsizeweight = 0.2;
/// init with default values
@ -1246,29 +1246,29 @@ namespace netgen
/// if non-zero, baseelement must have baseelnp points
int baseelnp = 0;
/// quality tolerances are handled less careful
int sloppy = 1;
bool sloppy = true;
/// limit for max element angle (150-180)
double badellimit = 175;
bool check_impossible = 0;
bool check_impossible = false;
int only3D_domain_nr = 0;
///
int secondorder = 0;
bool secondorder = false;
/// high order element curvature
int elementorder = 1;
/// quad-dominated surface meshing
int quad = 0;
bool quad = false;
///
bool try_hexes = false;
///
int inverttets = 0;
bool inverttets = false;
///
int inverttrigs = 0;
bool inverttrigs = false;
///
int autozrefine = 0;
bool autozrefine = false;
///
MeshingParameters ();
///

35
libsrc/meshing/python_mesh.cpp
View File

@ -2,6 +2,7 @@
#include <../general/ngpython.hpp>
#include <core/python_ngcore.hpp>
#include "python_mesh.hpp"
#include <mystdlib.h>
#include "meshing.hpp"
@ -1026,38 +1027,12 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
;
typedef MeshingParameters MP;
py::class_<MP> (m, "MeshingParameters")
auto 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)
.def(py::init([](py::kwargs kwargs)
{
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,
py::arg("meshsizefilename") = "",
py::arg("grading")=0.3,
py::arg("curvaturesafety")=2,
py::arg("segmentsperedge")=1,
"create meshing parameters"
)
return CreateMPfromKwargs(kwargs);
}), meshingparameter_description.c_str())
.def("__str__", &ToString<MP>)
.def_property("maxh",
FunctionPointer ([](const MP & mp ) { return mp.maxh; }),

170
libsrc/meshing/python_mesh.hpp Normal file
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@ -0,0 +1,170 @@
#include <pybind11/pybind11.h>
#include "meshing.hpp"
namespace netgen
{
// TODO: Clarify a lot of these parameters
static string meshingparameter_description = R"delimiter(
Meshing Parameters
-------------------
maxh: float = 1e10
Global upper bound for mesh size.
grading: float = 0.3
Mesh grading how fast the local mesh size can change.
meshsizefilename: str = None
Load meshsize from file. Can set local mesh size for points
and along edges. File must have the format:
nr_points
x1, y1, z1, meshsize
x2, y2, z2, meshsize
...
xn, yn, zn, meshsize
nr_edges
x11, y11, z11, x12, y12, z12, meshsize
...
xn1, yn1, zn1, xn2, yn2, zn2, meshsize
segmentsperedge: float = 1.
Minimal number of segments per edge.
quad: bool = False
Quad-dominated surface meshing.
blockfill: bool = True
Do fast blockfilling.
filldist: float = 0.1
Block fill up to distance
delaunay: bool = True
Use delaunay meshing.
Optimization Parameters
-----------------------
optimize3d: str = "cmdmustm"
3d optimization strategy:
m .. move nodes
M .. move nodes, cheap functional
s .. swap faces
c .. combine elements
d .. divide elements
p .. plot, no pause
P .. plot, Pause
h .. Histogramm, no pause
H .. Histogramm, pause
optsteps3d: int = 3
Number of 3d optimization steps.
optimize2d: str = "smsmsmSmSmSm"
2d optimization strategy:
s .. swap, opt 6 lines/node
S .. swap, optimal elements
m .. move nodes
p .. plot, no pause
P .. plot, pause
c .. combine
optsteps2d: int = 3
Number of 2d optimization steps.
elsizeweight: float = 0.2
Weight of element size w.r.t. element shape in optimization.
)delimiter";
MeshingParameters CreateMPfromKwargs(py::kwargs kwargs)
{
MeshingParameters mp;
if(kwargs.contains("optimize3d"))
mp.optimize3d = py::cast<string>(kwargs["optimize3d"]);
if(kwargs.contains("optsteps3d"))
mp.optsteps3d = py::cast<int>(kwargs["optsteps3d"]);
if(kwargs.contains("optimize2d"))
mp.optimize2d = py::cast<string>(kwargs["optimize2d"]);
if(kwargs.contains("optsteps2d"))
mp.optsteps2d = py::cast<int>(kwargs["optsteps2d"]);
if(kwargs.contains("opterrpow"))
mp.opterrpow = py::cast<double>(kwargs["opterrpow"]);
if(kwargs.contains("blockfill"))
mp.blockfill = py::cast<bool>(kwargs["blockfill"]);
if(kwargs.contains("filldist"))
mp.filldist = py::cast<double>(kwargs["filldist"]);
if(kwargs.contains("safety"))
mp.safety = py::cast<double>(kwargs["safety"]);
if(kwargs.contains("relinnersafety"))
mp.relinnersafety = py::cast<double>(kwargs["relinnersafety"]);
if(kwargs.contains("uselocalh"))
mp.uselocalh = py::cast<bool>(kwargs["uselocalh"]);
if(kwargs.contains("grading"))
mp.grading = py::cast<double>(kwargs["grading"]);
if(kwargs.contains("delaunay"))
mp.delaunay = py::cast<bool>(kwargs["delaunay"]);
if(kwargs.contains("maxh"))
mp.maxh = py::cast<double>(kwargs["maxh"]);
if(kwargs.contains("minh"))
mp.minh = py::cast<double>(kwargs["minh"]);
if(kwargs.contains("meshsizefilename"))
mp.meshsizefilename = py::cast<string>(kwargs["meshsizefilename"]);
if(kwargs.contains("startinsurface"))
mp.startinsurface = py::cast<bool>(kwargs["startinsurface"]);
if(kwargs.contains("checkoverlap"))
mp.checkoverlap = py::cast<bool>(kwargs["checkoverlap"]);
if(kwargs.contains("checkoverlappingboundary"))
mp.checkoverlappingboundary = py::cast<bool>(kwargs["checkoverlappingboundary"]);
if(kwargs.contains("checkchartboundary"))
mp.checkchartboundary = py::cast<bool>(kwargs["checkchartboundary"]);
if(kwargs.contains("curvaturesafety"))
mp.curvaturesafety = py::cast<double>(kwargs["curvaturesafety"]);
if(kwargs.contains("segmentsperedge"))
mp.segmentsperedge = py::cast<double>(kwargs["segmentsperedge"]);
if(kwargs.contains("parthread"))
mp.parthread = py::cast<bool>(kwargs["parthread"]);
if(kwargs.contains("elsizeweight"))
mp.elsizeweight = py::cast<double>(kwargs["elsizeweight"]);
if(kwargs.contains("perfstepsstart"))
mp.perfstepsstart = py::cast<int>(kwargs["perfstepsstart"]);
if(kwargs.contains("perfstepsend"))
mp.perfstepsend = py::cast<int>(kwargs["perfstepsend"]);
if(kwargs.contains("giveuptol2d"))
mp.giveuptol2d = py::cast<int>(kwargs["giveuptol2d"]);
if(kwargs.contains("giveuptol"))
mp.giveuptol = py::cast<int>(kwargs["giveuptol"]);
if(kwargs.contains("maxoutersteps"))
mp.maxoutersteps = py::cast<int>(kwargs["maxoutersteps"]);
if(kwargs.contains("starshapeclass"))
mp.starshapeclass = py::cast<int>(kwargs["starshapeclass"]);
if(kwargs.contains("baseelnp"))
mp.baseelnp = py::cast<int>(kwargs["baseelnp"]);
if(kwargs.contains("sloppy"))
mp.sloppy = py::cast<bool>(kwargs["sloppy"]);
if(kwargs.contains("badellimit"))
mp.badellimit = py::cast<double>(kwargs["badellimit"]);
if(kwargs.contains("check_impossible"))
mp.check_impossible = py::cast<bool>(kwargs["check_impossible"]);
if(kwargs.contains("only3D_domain_nr"))
mp.only3D_domain_nr = py::cast<int>(kwargs["only3D_domain_nr"]);
if(kwargs.contains("secondorder"))
mp.secondorder = py::cast<bool>(kwargs["secondorder"]);
if(kwargs.contains("elementorder"))
mp.elementorder = py::cast<int>(kwargs["elementorder"]);
if(kwargs.contains("quad"))
mp.quad = py::cast<bool>(kwargs["quad"]);
if(kwargs.contains("try_hexes"))
mp.try_hexes = py::cast<bool>(kwargs["try_hexes"]);
if(kwargs.contains("inverttets"))
mp.inverttets = py::cast<bool>(kwargs["inverttets"]);
if(kwargs.contains("inverttrigs"))
mp.inverttrigs = py::cast<bool>(kwargs["inverttrigs"]);
if(kwargs.contains("autozrefine"))
mp.autozrefine = py::cast<bool>(kwargs["autozrefine"]);
return mp;
}
} // namespace netgen

59
libsrc/occ/python_occ.cpp
View File

@ -3,6 +3,7 @@
#include <../general/ngpython.hpp>
#include <core/python_ngcore.hpp>
#include "../meshing/python_mesh.hpp"
#include <meshing.hpp>
#include <occgeom.hpp>
@ -19,6 +20,21 @@ DLL_HEADER void ExportNgOCC(py::module &m)
{
py::class_<OCCGeometry, shared_ptr<OCCGeometry>, NetgenGeometry> (m, "OCCGeometry", R"raw_string(Use LoadOCCGeometry to load the geometry from a *.step file.)raw_string")
.def(py::init<>())
.def(py::init([] (const string& filename)
{
shared_ptr<OCCGeometry> geo;
if(EndsWith(filename, ".step") || EndsWith(filename, ".stp"))
geo.reset(LoadOCC_STEP(filename.c_str()));
else if(EndsWith(filename, ".brep"))
geo.reset(LoadOCC_BREP(filename.c_str()));
else if(EndsWith(filename, ".iges"))
geo.reset(LoadOCC_IGES(filename.c_str()));
else
throw Exception("Cannot load file " + filename + "\nValid formats are: step, stp, brep, iges");
ng_geometry = geo;
return geo;
}), py::arg("filename"),
"Load OCC geometry from step, brep or iges file")
.def(NGSPickle<OCCGeometry>())
.def("Heal",[](OCCGeometry & self, double tolerance, bool fixsmalledges, bool fixspotstripfaces, bool sewfaces, bool makesolids, bool splitpartitions)
{
@ -108,34 +124,33 @@ DLL_HEADER void ExportNgOCC(py::module &m)
res["max"] = MoveToNumpy(max);
return res;
}, py::call_guard<py::gil_scoped_release>())
;
m.def("LoadOCCGeometry",FunctionPointer([] (const string & filename)
.def("GenerateMesh", [](shared_ptr<OCCGeometry> geo, py::kwargs kwargs)
{
MeshingParameters mp;
{
py::gil_scoped_acquire aq;
mp = CreateMPfromKwargs(kwargs);
}
auto mesh = make_shared<Mesh>();
SetGlobalMesh(mesh);
mesh->SetGeometry(geo);
ng_geometry = geo;
geo->GenerateMesh(mesh,mp);
return mesh;
},
py::call_guard<py::gil_scoped_release>(),
meshingparameter_description.c_str())
;
m.def("LoadOCCGeometry",[] (const string & filename)
{
cout << "load OCC geometry";
cout << "WARNING: LoadOCCGeometry is deprecated! Just use the OCCGeometry(filename) constructor. It is able to read brep and iges files as well!" << endl;
ifstream ist(filename);
OCCGeometry * instance = new OCCGeometry();
instance = LoadOCC_STEP(filename.c_str());
ng_geometry = shared_ptr<OCCGeometry>(instance, NOOP_Deleter);
return ng_geometry;
}),py::call_guard<py::gil_scoped_release>());
m.def("GenerateMesh", FunctionPointer([] (shared_ptr<OCCGeometry> geo, MeshingParameters &param)
{
auto mesh = make_shared<Mesh>();
SetGlobalMesh(mesh);
mesh->SetGeometry(geo);
ng_geometry = geo;
try
{
geo->GenerateMesh(mesh,param);
}
catch (NgException ex)
{
cout << "Caught NgException: " << ex.What() << endl;
}
return mesh;
}),py::call_guard<py::gil_scoped_release>())
;
},py::call_guard<py::gil_scoped_release>());
}
PYBIND11_MODULE(libNgOCC, m) {

51
libsrc/stlgeom/python_stl.cpp
View File

@ -4,6 +4,7 @@
#include <../general/ngpython.hpp>
#include <core/python_ngcore.hpp>
#include <stlgeom.hpp>
#include "../meshing/python_mesh.hpp"
#ifdef WIN32
#define DLL_HEADER __declspec(dllexport)
@ -21,6 +22,12 @@ DLL_HEADER void ExportSTL(py::module & m)
{
py::class_<STLGeometry,shared_ptr<STLGeometry>, NetgenGeometry> (m,"STLGeometry")
.def(py::init<>())
.def(py::init<>([](const string& filename)
{
ifstream ist(filename);
return shared_ptr<STLGeometry>(STLGeometry::Load(ist));
}), py::arg("filename"),
py::call_guard<py::gil_scoped_release>())
.def(NGSPickle<STLGeometry>())
.def("_visualizationData", [](shared_ptr<STLGeometry> stl_geo)
{
@ -71,29 +78,29 @@ DLL_HEADER void ExportSTL(py::module & m)
res["max"] = MoveToNumpy(max);
return res;
}, py::call_guard<py::gil_scoped_release>())
.def("GenerateMesh", [] (shared_ptr<STLGeometry> geo, py::kwargs kwargs)
{
MeshingParameters mp;
{
py::gil_scoped_acquire aq;
mp = CreateMPfromKwargs(kwargs);
}
auto mesh = make_shared<Mesh>();
SetGlobalMesh(mesh);
mesh->SetGeometry(geo);
ng_geometry = geo;
geo->GenerateMesh(mesh,mp);
return mesh;
},
py::call_guard<py::gil_scoped_release>(),
meshingparameter_description.c_str())
;
m.def("LoadSTLGeometry", FunctionPointer([] (const string & filename)
{
ifstream ist(filename);
return shared_ptr<STLGeometry>(STLGeometry::Load(ist));
}),py::call_guard<py::gil_scoped_release>());
m.def("GenerateMesh", FunctionPointer([] (shared_ptr<STLGeometry> geo, MeshingParameters &param)
{
auto mesh = make_shared<Mesh>();
SetGlobalMesh(mesh);
mesh->SetGeometry(geo);
ng_geometry = geo;
try
{
geo->GenerateMesh(mesh,param);
}
catch (NgException ex)
{
cout << "Caught NgException: " << ex.What() << endl;
}
return mesh;
}),py::call_guard<py::gil_scoped_release>())
;
m.def("LoadSTLGeometry", [] (const string & filename)
{
cout << "WARNING: LoadSTLGeometry is deprecated, use the STLGeometry(filename) constructor instead!" << endl;
ifstream ist(filename);
return shared_ptr<STLGeometry>(STLGeometry::Load(ist));
},py::call_guard<py::gil_scoped_release>());
}
PYBIND11_MODULE(libstl, m) {

2
python/CMakeLists.txt
View File

@ -7,7 +7,7 @@ configure_file(__init__.py ${CMAKE_CURRENT_BINARY_DIR}/__init__.py @ONLY)
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/__init__.py
meshing.py csg.py geom2d.py stl.py gui.py NgOCC.py read_gmsh.py
meshing.py csg.py geom2d.py stl.py gui.py NgOCC.py occ.py read_gmsh.py
DESTINATION ${NG_INSTALL_DIR_PYTHON}/${NG_INSTALL_SUFFIX}
COMPONENT netgen
)

13
python/NgOCC.py
View File

@ -1,10 +1,7 @@
from netgen.libngpy._NgOCC import *
from netgen.libngpy._meshing import MeshingParameters
def NgOCC_meshing_func (geom, **args):
if "mp" in args:
return GenerateMesh (geom, args["mp"])
else:
return GenerateMesh (geom, MeshingParameters (**args))
import logging
logger = logging.getLogger(__name__)
OCCGeometry.GenerateMesh = NgOCC_meshing_func
logger.warn("This module is deprecated and just a wrapper for netgen.occ, import netgen.occ instead")
from .occ import *

25
python/csg.py
View File

@ -1,34 +1,18 @@
from netgen.libngpy._csg import *
from netgen.libngpy._meshing import MeshingParameters
from netgen.libngpy._meshing import Pnt
from netgen.libngpy._meshing import Vec
from netgen.libngpy._meshing import Trafo
from .libngpy._csg import *
from .libngpy._meshing import Pnt, Vec, Trafo
try:
import libngpy.csgvis as csgvis
from libngpy.csgvis import MouseMove
from . import csgvis
from .csgvis import MouseMove
CSGeometry.VS = csgvis.VS
SetBackGroundColor = csgvis.SetBackGroundColor
del csgvis
def VS (obj):
return obj.VS()
except:
pass
def csg_meshing_func (geom, **args):
if "mp" in args:
return GenerateMesh (geom, args["mp"])
else:
return GenerateMesh (geom, MeshingParameters (**args))
# return GenerateMesh (geom, MeshingParameters (**args))
CSGeometry.GenerateMesh = csg_meshing_func
unit_cube = CSGeometry()
p1 = Plane(Pnt(0,0,0),Vec(-1,0,0)).bc("back")
p2 = Plane(Pnt(1,1,1),Vec(1,0,0)).bc("front")
@ -37,5 +21,4 @@ p4 = Plane(Pnt(1,1,1),Vec(0,1,0)).bc("right")
p5 = Plane(Pnt(0,0,0),Vec(0,0,-1)).bc("bottom")
p6 = Plane(Pnt(1,1,1),Vec(0,0,1)).bc("top")
unit_cube.Add (p1*p2*p3*p4*p5*p6, col=(0,0,1))
# unit_cube.Add (OrthoBrick(Pnt(0,0,0), Pnt(1,1,1)))

29
python/geom2d.py
View File

@ -1,24 +1,11 @@
from netgen.libngpy._geom2d import *
from netgen.libngpy._meshing import *
tmp_generate_mesh = SplineGeometry.GenerateMesh
def geom2d_meshing_func (geom, **args):
if "mp" in args:
return tmp_generate_mesh (geom, args["mp"])
else:
return tmp_generate_mesh (geom, MeshingParameters (**args))
SplineGeometry.GenerateMesh = geom2d_meshing_func
from .libngpy._geom2d import SplineGeometry
unit_square = SplineGeometry()
pnts = [ (0,0), (1,0), (1,1), (0,1) ]
lines = [ (0,1,1,"bottom"), (1,2,2,"right"), (2,3,3,"top"), (3,0,4,"left") ]
pnums = [unit_square.AppendPoint(*p) for p in pnts]
for l1,l2,bc,bcname in lines:
unit_square.Append( ["line", pnums[l1], pnums[l2]], bc=bcname)
_pnts = [ (0,0), (1,0), (1,1), (0,1) ]
_lines = [ (0,1,1,"bottom"), (1,2,2,"right"), (2,3,3,"top"), (3,0,4,"left") ]
_pnums = [unit_square.AppendPoint(*p) for p in _pnts]
for l1,l2,bc,bcname in _lines:
unit_square.Append( ["line", _pnums[l1], _pnums[l2]], bc=bcname)
def MakeRectangle (geo, p1, p2, bc=None, bcs=None, **args):
@ -141,8 +128,4 @@ SplineGeometry.AddSegment = lambda *args, **kwargs : SplineGeometry.Append(*args
SplineGeometry.AddPoint = lambda *args, **kwargs : SplineGeometry.AppendPoint(*args, **kwargs)
SplineGeometry.CreatePML = CreatePML
__all__ = ['SplineGeometry', 'unit_square']

2
python/meshing.py
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from netgen.libngpy._meshing import *
from .libngpy._meshing import *

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python/occ.py Normal file
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from .libngpy._NgOCC import *

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python/stl.py
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from netgen.libngpy._stl import *
from netgen.libngpy._meshing import MeshingParameters
def stl_meshing_func (geom, **args):
if "mp" in args:
return GenerateMesh (geom, args["mp"])
else:
return GenerateMesh (geom, MeshingParameters (**args))
# return GenerateMesh (geom, MeshingParameters (**args))
STLGeometry.GenerateMesh = stl_meshing_func