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red refinement, parent faces (thx Guosheng)

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This commit is contained in:
Joachim Schoeberl 2021-04-09 08:06:20 +02:00
parent d10c1e14d3
commit d803150b87
1 changed files with 40 additions and 2 deletions
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40
libsrc/meshing/topology.cpp
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@ -1878,10 +1878,48 @@ namespace netgen
} }
auto [info, nrs] = parent_faces[i]; auto [info, nrs] = parent_faces[i];
if (nrs[0] == -1) if (nrs[0] == -1){
// hacking for tet red refinements
PointIndex v0 = f3[0];
auto pa0 = mesh->mlbetweennodes[v0];
auto pa1 = mesh->mlbetweennodes[f3[1]];
auto pa2 = mesh->mlbetweennodes[f3[2]];
// v0 is a coarse vertex ==> f3 is a boundary face
if (v0==pa1[0] || v0==pa1[1]){
if (pa1[0]==v0){// type 0: bottom left corner
INT<3> parentverts(v0, pa1[1], pa2[1]);
int pafacenr = v2f[parentverts];
parent_faces[i] = { 16, { pafacenr, -1, -1, -1} };
//cout << "f "<<i<<":pf "<< pafacenr<< "A" <<endl;
}else if (pa2[0]==v0) {// type 1: bottom right corner
INT<3> parentverts(pa1[0], v0, pa2[1]);
int pafacenr = v2f[parentverts];
parent_faces[i] = { 17, { pafacenr, -1, -1, -1} };
//cout << "f "<<i<<":pf "<< pafacenr<< "B" <<endl;
}else if (pa1[1]==v0){// type 2: top left corner
INT<3> parentverts(pa1[0], pa2[0], v0);
int pafacenr = v2f[parentverts];
parent_faces[i] = { 18, { pafacenr, -1, -1, -1} };
//cout << "f "<<i<<":pf "<< pafacenr<< "C" <<endl;
}else{
cout << "************************** unhandled parent-face case **********************" << endl; cout << "************************** unhandled parent-face case **********************" << endl;
} }
} }
else{// all vertices are on fine level [fff]
// Here we only work with boundary fff face
if (pa0[0]==pa1[0] && pa0[1]==pa2[0] && pa1[1]==pa2[1]){//type 3 bdry face
INT<3> parentverts(pa0[0], pa0[1], pa1[1]);
int pafacenr = v2f[parentverts];
parent_faces[i] = { 19, { pafacenr, -1, -1, -1} };
//cout << "f "<<i<<":pf "<< pafacenr<< "D" <<endl;
}else{// this is an interior face FIXME
parent_faces[i] = { 20, { -1, -1, -1, -1} };
//cout << "face "<< i << ":"<< f3 <<" is an int face"<< endl;
}
}
}
}
}
} }