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Merge branch 'boundarylayer_allow_different_mats' into 'master'

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allow different materials in boundarylayer depending on bc name

See merge request ngsolve/netgen!539
This commit is contained in:
Hochsteger, Matthias 2022-11-10 14:35:59 +01:00
commit 616c04934a
3 changed files with 31 additions and 12 deletions
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31
libsrc/meshing/boundarylayer.cpp
View File

@ -7,6 +7,7 @@
#include "../geom2d/csg2d.hpp"
#include <set>
#include <regex>
namespace netgen
{
@ -562,8 +563,22 @@ namespace netgen
if(seg.edgenr > max_edge_nr)
max_edge_nr = seg.edgenr;
new_mat_nr = mesh.GetNDomains() +1;
mesh.SetMaterial(new_mat_nr, params.new_mat);
int ndom = mesh.GetNDomains();
ndom_old = ndom;
new_mat_nrs.SetSize(mesh.FaceDescriptors().Size() + 1);
new_mat_nrs = -1;
for(auto [bcname, matname] : params.new_mat)
{
mesh.SetMaterial(++ndom, matname);
regex pattern(bcname);
for(auto i : Range(1, mesh.GetNFD()+1))
{
auto& fd = mesh.GetFaceDescriptor(i);
if(regex_match(fd.GetBCName(), pattern))
new_mat_nrs[i] = ndom;
}
}
domains = params.domains;
if(!params.outside)
@ -606,8 +621,8 @@ namespace netgen
int new_si = mesh.GetNFD()+1;
surfacefacs[i] = isIn ? 1. : -1.;
// -1 surf nr is so that curving does not do anything
FaceDescriptor new_fd(-1, isIn ? new_mat_nr : fd.DomainIn(),
isIn ? fd.DomainOut() : new_mat_nr, -1);
FaceDescriptor new_fd(-1, isIn ? new_mat_nrs[i] : fd.DomainIn(),
isIn ? fd.DomainOut() : new_mat_nrs[i], -1);
new_fd.SetBCProperty(new_si);
mesh.AddFaceDescriptor(new_fd);
si_map[i] = new_si;
@ -1050,7 +1065,7 @@ namespace netgen
if(surfacefacs[sel.GetIndex()] > 0) Swap(points[0], points[2]);
for(auto i : Range(points))
el[sel.PNums().Size() + i] = points[i];
el.SetIndex(new_mat_nr);
el.SetIndex(new_mat_nrs[sel.GetIndex()]);
mesh.AddVolumeElement(el);
}
Element2d newel = sel;
@ -1238,10 +1253,10 @@ namespace netgen
for(auto i : Range(1, nfd_old+1))
if(si_map[i] != -1)
{
if(mesh.GetFaceDescriptor(mesh.GetNFD()).DomainIn() == new_mat_nr)
mesh.GetFaceDescriptor(i).SetDomainOut(new_mat_nr);
if(auto dom = mesh.GetFaceDescriptor(si_map[i]).DomainIn(); dom > ndom_old)
mesh.GetFaceDescriptor(i).SetDomainOut(dom);
else
mesh.GetFaceDescriptor(i).SetDomainIn(new_mat_nr);
mesh.GetFaceDescriptor(i).SetDomainIn(mesh.GetFaceDescriptor(si_map[i]).DomainOut());
}
}

5
libsrc/meshing/boundarylayer.hpp
View File

@ -14,7 +14,7 @@ public:
// parameters by Philippose ..
Array<int> surfid;
Array<double> heights;
string new_mat;
map<string, string> new_mat;
BitArray domains;
bool outside = false; // set the boundary layer on the outside
bool grow_edges = false;
@ -42,7 +42,8 @@ class BoundaryLayerTool
BitArray domains, is_edge_moved, is_boundary_projected, is_boundary_moved;
Array<SegmentIndex> moved_segs;
int max_edge_nr, new_mat_nr, nfd_old;
int max_edge_nr, nfd_old, ndom_old;
Array<int> new_mat_nrs;
int np, nseg, nse, ne;
double height;

7
libsrc/meshing/python_mesh.cpp
View File

@ -1253,7 +1253,7 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
.def ("BoundaryLayer2", GenerateBoundaryLayer2, py::arg("domain"), py::arg("thicknesses"), py::arg("make_new_domain")=true, py::arg("boundaries")=Array<int>{})
.def ("BoundaryLayer", [](Mesh & self, variant<string, int> boundary,
variant<double, py::list> thickness,
string material,
variant<string, map<string, string>> material,
variant<string, int> domain, bool outside,
optional<string> project_boundaries,
bool grow_edges, bool limit_growth_vectors)
@ -1298,7 +1298,10 @@ DLL_HEADER void ExportNetgenMeshing(py::module &m)
for(int i = 1; i<=self.GetNFD(); i++)
if(boundaries.Test(i))
blp.surfid.Append(i);
blp.new_mat = material;
if(string* mat = get_if<string>(&material); mat)
blp.new_mat = { { ".*", *mat } };
else
blp.new_mat = *get_if<map<string, string>>(&material);
if(project_boundaries.has_value())
{