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Initialization of tagdel fields in mesh generation #309

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Merged
merged 2 commits into from
Jul 18, 2025
Merged

Initialization of tagdel fields in mesh generation #309

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1c2d9d9
Correct initialization of tagdel fields of points in mesh generation
corentin-prigent Jul 10, 2025
63745ae
replaced old with iel when appropriate
corentin-prigent Jul 17, 2025
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24 changes: 15 additions & 9 deletions src/mmg2d/delone_2d.c
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Original file line number Diff line number Diff line change
Expand Up @@ -261,17 +261,23 @@ int MMG2D_delone(MMG5_pMesh mesh,MMG5_pSol sol,MMG5_int ip,MMG5_int *list,int il
static int8_t mmgWarn0=0,mmgWarn1=0;

/* Initialize tagdel field */
for (k=1; k<=mesh->np-4; k++)
mesh->point[k].tagdel = 0;
for (k=0; k<ilist; k++) {
iel = list[k];
pt1 = &mesh->tria[iel];
for (i=0; i<3; i++) {
ppt = &mesh->point[ pt1->v[i] ];
ppt->tagdel = 0;
}
}

/* Triangles in the cavity are those s.t. pt->base == base */
base = mesh->base;
/* Count the number of external faces in the cavity, and tag the corresponding vertices */
size = 0;
for (k=0; k<ilist; k++) {
old = list[k];
pt1 = &mesh->tria[old];
iadr = (old-1)*3 + 1;
iel = list[k];
pt1 = &mesh->tria[iel];
iadr = (iel-1)*3 + 1;
adja = &mesh->adja[iadr];
nei[0] = adja[0]/3 ;
nei[1] = adja[1]/3 ;
Expand All @@ -292,8 +298,8 @@ int MMG2D_delone(MMG5_pMesh mesh,MMG5_pSol sol,MMG5_int ip,MMG5_int *list,int il
/* Check for an isolated vertex (the cavity should ne contain any internal vertex) */
alert = 0;
for (k=0; k<ilist; k++) {
old = list[k];
pt1 = &mesh->tria[old];
iel = list[k];
pt1 = &mesh->tria[iel];
for (i=0; i<3; i++) {
ppt = &mesh->point[ pt1->v[i] ];
if ( !ppt->tagdel ) {
Expand All @@ -303,8 +309,8 @@ int MMG2D_delone(MMG5_pMesh mesh,MMG5_pSol sol,MMG5_int ip,MMG5_int *list,int il
}
/* Reset tagdel field */
for (k=0; k<ilist; k++) {
old = list[k];
pt1 = &mesh->tria[old];
iel = list[k];
pt1 = &mesh->tria[iel];
for (i=0; i<3; i++) {
ppt = &mesh->point[ pt1->v[i] ];
ppt->tagdel = 0;
Expand Down