netgen/libsrc/meshing/python_mesh.hpp

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#ifndef NETGEN_MESHING_PYTHON_MESH_HPP
#define NETGEN_MESHING_PYTHON_MESH_HPP
#include <core/python_ngcore.hpp>
#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_dominated: 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.
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optimize2d: str = "smcmSmcmSmcm"
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";
inline void CreateMPfromKwargs(MeshingParameters& mp, py::kwargs kwargs, bool throw_if_not_all_parsed=true)
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{
if(kwargs.contains("optimize3d"))
mp.optimize3d = py::cast<string>(kwargs.attr("pop")("optimize3d"));
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if(kwargs.contains("optsteps3d"))
mp.optsteps3d = py::cast<int>(kwargs.attr("pop")("optsteps3d"));
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if(kwargs.contains("optimize2d"))
mp.optimize2d = py::cast<string>(kwargs.attr("pop")("optimize2d"));
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if(kwargs.contains("optsteps2d"))
mp.optsteps2d = py::cast<int>(kwargs.attr("pop")("optsteps2d"));
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if(kwargs.contains("opterrpow"))
mp.opterrpow = py::cast<double>(kwargs.attr("pop")("opterrpow"));
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if(kwargs.contains("blockfill"))
mp.blockfill = py::cast<bool>(kwargs.attr("pop")("blockfill"));
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if(kwargs.contains("filldist"))
mp.filldist = py::cast<double>(kwargs.attr("pop")("filldist"));
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if(kwargs.contains("safety"))
mp.safety = py::cast<double>(kwargs.attr("pop")("safety"));
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if(kwargs.contains("relinnersafety"))
mp.relinnersafety = py::cast<double>(kwargs.attr("pop")("relinnersafety"));
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if(kwargs.contains("uselocalh"))
mp.uselocalh = py::cast<bool>(kwargs.attr("pop")("uselocalh"));
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if(kwargs.contains("grading"))
mp.grading = py::cast<double>(kwargs.attr("pop")("grading"));
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if(kwargs.contains("delaunay"))
mp.delaunay = py::cast<bool>(kwargs.attr("pop")("delaunay"));
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if(kwargs.contains("maxh"))
mp.maxh = py::cast<double>(kwargs.attr("pop")("maxh"));
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if(kwargs.contains("minh"))
mp.minh = py::cast<double>(kwargs.attr("pop")("minh"));
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if(kwargs.contains("meshsizefilename"))
mp.meshsizefilename = py::cast<string>(kwargs.attr("pop")("meshsizefilename"));
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if(kwargs.contains("startinsurface"))
mp.startinsurface = py::cast<bool>(kwargs.attr("pop")("startinsurface"));
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if(kwargs.contains("checkoverlap"))
mp.checkoverlap = py::cast<bool>(kwargs.attr("pop")("checkoverlap"));
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if(kwargs.contains("checkoverlappingboundary"))
mp.checkoverlappingboundary = py::cast<bool>(kwargs.attr("pop")("checkoverlappingboundary"));
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if(kwargs.contains("checkchartboundary"))
mp.checkchartboundary = py::cast<bool>(kwargs.attr("pop")("checkchartboundary"));
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if(kwargs.contains("curvaturesafety"))
mp.curvaturesafety = py::cast<double>(kwargs.attr("pop")("curvaturesafety"));
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if(kwargs.contains("segmentsperedge"))
mp.segmentsperedge = py::cast<double>(kwargs.attr("pop")("segmentsperedge"));
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if(kwargs.contains("parthread"))
mp.parthread = py::cast<bool>(kwargs.attr("pop")("parthread"));
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if(kwargs.contains("elsizeweight"))
mp.elsizeweight = py::cast<double>(kwargs.attr("pop")("elsizeweight"));
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if(kwargs.contains("perfstepsstart"))
mp.perfstepsstart = py::cast<int>(kwargs.attr("pop")("perfstepsstart"));
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if(kwargs.contains("perfstepsend"))
mp.perfstepsend = py::cast<int>(kwargs.attr("pop")("perfstepsend"));
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if(kwargs.contains("giveuptol2d"))
mp.giveuptol2d = py::cast<int>(kwargs.attr("pop")("giveuptol2d"));
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if(kwargs.contains("giveuptol"))
mp.giveuptol = py::cast<int>(kwargs.attr("pop")("giveuptol"));
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if(kwargs.contains("maxoutersteps"))
mp.maxoutersteps = py::cast<int>(kwargs.attr("pop")("maxoutersteps"));
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if(kwargs.contains("starshapeclass"))
mp.starshapeclass = py::cast<int>(kwargs.attr("pop")("starshapeclass"));
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if(kwargs.contains("baseelnp"))
mp.baseelnp = py::cast<int>(kwargs.attr("pop")("baseelnp"));
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if(kwargs.contains("sloppy"))
mp.sloppy = py::cast<int>(kwargs.attr("pop")("sloppy"));
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if(kwargs.contains("badellimit"))
mp.badellimit = py::cast<double>(kwargs.attr("pop")("badellimit"));
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if(kwargs.contains("check_impossible"))
mp.check_impossible = py::cast<bool>(kwargs.attr("pop")("check_impossible"));
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if(kwargs.contains("only3D_domain_nr"))
mp.only3D_domain_nr = py::cast<int>(kwargs.attr("pop")("only3D_domain_nr"));
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if(kwargs.contains("secondorder"))
mp.secondorder = py::cast<bool>(kwargs.attr("pop")("secondorder"));
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if(kwargs.contains("elementorder"))
mp.elementorder = py::cast<int>(kwargs.attr("pop")("elementorder"));
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if(kwargs.contains("quad"))
{
cout << "WARNING: Meshing parameter 'quad' is deprecated, use 'quad_dominated' instead!" << endl;
mp.quad = py::cast<bool>(kwargs.attr("pop")("quad"));
}
if(kwargs.contains("quad_dominated"))
mp.quad = py::cast<bool>(kwargs.attr("pop")("quad_dominated"));
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if(kwargs.contains("try_hexes"))
mp.try_hexes = py::cast<bool>(kwargs.attr("pop")("try_hexes"));
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if(kwargs.contains("inverttets"))
mp.inverttets = py::cast<bool>(kwargs.attr("pop")("inverttets"));
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if(kwargs.contains("inverttrigs"))
mp.inverttrigs = py::cast<bool>(kwargs.attr("pop")("inverttrigs"));
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if(kwargs.contains("autozrefine"))
mp.autozrefine = py::cast<bool>(kwargs.attr("pop")("autozrefine"));
if(kwargs.contains("parallel_meshing"))
mp.parallel_meshing = py::cast<bool>(kwargs.attr("pop")("parallel_meshing"));
if(kwargs.contains("nthreads"))
mp.nthreads = py::cast<int>(kwargs.attr("pop")("nthreads"));
if(kwargs.contains("closeedgefac"))
mp.closeedgefac = py::cast<optional<double>>(kwargs.attr("pop")("closeedgefac"));
if(kwargs.size())
{
if(throw_if_not_all_parsed)
throw Exception(string("Not all kwargs given to GenerateMesh could be parsed:") + string(py::str(kwargs)));
mp.geometrySpecificParameters = CreateFlagsFromKwArgs(kwargs);
}
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}
} // namespace netgen
#endif // NETGEN_MESHING_PYTHON_MESH_HPP