List_ptr ME_Faces_R3R4(MEdge_ptr e) {
int i, j, nef, nvf, nv, found;
List_ptr efaces, vfaces, fverts;
MFace_ptr vface;
MVertex_ptr ev[2];
nef = 0;
efaces = List_New(10);
for (i = 0; i < 2; i++)
ev[i] = ME_Vertex(e,i);
vfaces = MV_Faces(ev[0]);
nvf = List_Num_Entries(vfaces);
/* Go through all faces connected to ev[0] and pick out ones which
use this edge. Do this by checking if ev[0] and ev[1] are
consecutive vertices in the face */
for (i = 0; i < nvf; i++) {
vface = List_Entry(vfaces,i);
/* Get vertices of i'th face connected to ev[0] */
fverts = MF_Vertices(vface,1,0);
nv = MF_Num_Vertices(vface);
/* If the j'th vertex is ev[0], check if the next or the
previous vertex is ev[1]; If it is then the edge is used by
the face */
found = 0;
for (j = 0; j < nv; j++) {
if (ev[0] == List_Entry(fverts,j) &&
(ev[1] == List_Entry(fverts,(j+1)%nv) ||
ev[1] == List_Entry(fverts,(j+nv-1)%nv))) {
found = 1;
break;
}
}
List_Delete(fverts);
if (found) {
List_Add(efaces,vface);
nef++;
}
}
List_Delete(vfaces);
if (nef)
return efaces;
else {
List_Delete(efaces);
return 0;
}
}
MEdge_ptr MVs_CommonEdge(MVertex_ptr v1, MVertex_ptr v2) {
List_ptr vedges;
MEdge_ptr edge=0;
MVertex_ptr ev;
int i, found, nve;
vedges = MV_Edges(v1);
if (!vedges)
return 0;
nve = List_Num_Entries(vedges);
for (i = 0, found = 0; i < nve; i++) {
edge = List_Entry(vedges,i);
ev = ME_Vertex(edge,0);
if (ev == v2) {
found = 1;
break;
}
else {
ev = ME_Vertex(edge,1);
if (ev == v2) {
found = 1;
break;
}
}
}
List_Delete(vedges);
return (found ? edge : 0);
}
List_ptr ME_Regions_F1(MEdge_ptr e) {
MEdge_Adj_F1 *adj;
int i, j, nr, nf;
List_ptr eregs;
MFace_ptr eface;
MRegion_ptr freg;
adj = (MEdge_Adj_F1 *) e->adj;
nf = List_Num_Entries(adj->efaces);
eregs = List_New(nf);
nr = 0;
for (i = 0; i < nf; i++) {
eface = List_Entry(adj->efaces,i);
for (j = 0; j < 2; j++) {
freg = MF_Region(eface,j);
if (freg) {
int inlist;
inlist = List_Contains(eregs,freg);
if (!inlist) {
List_Add(eregs,freg);
nr++;
}
}
}
}
if (nr)
return eregs;
else {
List_Delete(eregs);
return 0;
}
}
void MR_VertexIDs_FNR3R4(MRegion_ptr r, int *nrv, int *rvertids) {
int i;
List_ptr rverts = MR_Vertices(r);
*nrv = List_Num_Entries(rverts);
for (i = 0; i < *nrv; i++)
rvertids[i] = MEnt_ID(List_Entry(rverts,i));
}
MVertex_ptr ME_Split(MEdge_ptr esplit, double *xyz) {
MVertex_ptr vnew, v[2];
MEdge_ptr enew;
List_ptr elist;
double vxyz[3];
#ifdef DEBUG
v[0] = ME_Vertex(esplit,0);
v[1] = ME_Vertex(esplit,1);
#endif
if (xyz) {
memcpy(vxyz,xyz,3*sizeof(double));
elist = ME_MultiSplit(esplit,1,&vxyz);
}
else
elist = ME_MultiSplit(esplit,1,NULL);
enew = List_Entry(elist,0);
vnew = ME_Vertex(enew,1);
#ifdef DEBUG
if (vnew == v[0] || vnew == v[1]) {
MSTK_Report("ME_Split","Unexpected failure to retrieve split vertex",
MSTK_FATAL);
}
#endif
List_Delete(elist);
return vnew;
}
int MF_EdgeDir_i_R4(MFace_ptr f, int i) {
#ifdef HASHTABLE
MFace_Adj_R4 *adj = (MFace_Adj_R4 *) f->adj;
int j, ne;
MVertex_ptr evtx[2];
ne = List_Num_Entries(adj->fvertices);
j = i;
evtx[0] = List_Entry(adj->fvertices,j);
j = (i+1)%ne;
evtx[1] = List_Entry(adj->fvertices,j);
return (evtx[0]<evtx[1]) ? 1 : 0;
#else
return 1;
#endif
}
List_ptr MF_Vertices_R2(MFace_ptr f, int dir, MVertex_ptr v0) {
MFace_Adj_R2 *adj;
List_ptr fverts;
int i, k=0, nv, fnd=0;
adj = (MFace_Adj_R2 *) f->adj;
nv = List_Num_Entries(adj->fvertices);
if (!v0) {
if (dir)
fverts = List_Copy(adj->fvertices);
else {
fverts = List_New(nv);
for (i = nv-1; i >= 0; i--)
List_Add(fverts,List_Entry(adj->fvertices,i));
}
}
else {
for (i = 0; i < nv; i++) {
if (List_Entry(adj->fvertices,i) == v0) {
fnd = 1;
k = i;
break;
}
}
if (!fnd) {
MSTK_Report("MF_Vertices_R2","Cannot find starting vertex",MSTK_ERROR);
return 0;
}
fverts = List_New(nv);
for (i = 0; i < nv; i++) {
if (dir)
List_Add(fverts,List_Entry(adj->fvertices,(k+i)%nv));
else
List_Add(fverts,List_Entry(adj->fvertices,(k+nv-i)%nv));
}
}
return fverts;
}
void ME_FaceIDs_F1(MEdge_ptr e, int *nef, int *efaceids) {
List_ptr efaces = ((MEdge_Adj_F1 *)e->adj)->efaces;
*nef = 0;
if (efaces) {
int i;
*nef = List_Num_Entries(efaces);
for (i = 0; i < *nef; i++)
efaceids[i] = MEnt_ID(List_Entry(efaces,i));
}
}
void MF_VertexIDs_R2(MFace_ptr f, int dir, int startvertid, int *nfv,
int *fvertids) {
MFace_Adj_R2 *adj;
List_ptr fverts;
int i, k=0, nv, fnd=0;
adj = (MFace_Adj_R2 *) f->adj;
nv = List_Num_Entries(adj->fvertices);
if (!startvertid) {
if (dir) {
for (i = 0; i < nv; i++)
fvertids[i] = MEnt_ID(List_Entry(adj->fvertices,i));
}
else {
for (i = nv-1; i >= 0; i--)
fvertids[i] = MEnt_ID(List_Entry(adj->fvertices,i));
}
}
else {
for (i = 0; i < nv; i++) {
if (MEnt_ID(List_Entry(adj->fvertices,i)) == startvertid) {
fnd = 1;
k = i;
break;
}
}
if (!fnd) {
MSTK_Report("MF_VertexIDs_R2","Cannot find starting vertex",MSTK_FATAL);
}
if (dir) {
for (i = 0; i < nv; i++)
fvertids[i] = MEnt_ID(List_Entry(adj->fvertices,(k+i)%nv));
}
else {
for (i = 0; i < nv; i++)
fvertids[i] = MEnt_ID(List_Entry(adj->fvertices,(k+nv-i)%nv));
}
}
}
void ME_RegionIDs_F1(MEdge_ptr e, int *ner, int *eregionids) {
int i;
List_ptr eregs = ME_Regions_F1(e);
*ner = 0;
if (eregs) {
*ner = List_Num_Entries(eregs);
for (i = 0; i < *ner; i++)
eregionids[i] = MEnt_ID(List_Entry(eregs,i));
List_Delete(eregs);
}
}
void ME_FaceIDs_R1R2(MEdge_ptr e, int *nef, int *efaceids) {
List_ptr efaces = ME_Faces_R1R2(e);
if (efaces) {
int i;
*nef = List_Num_Entries(efaces);
for (i = 0; i < *nef; i++)
efaceids[i] = MEnt_ID(List_Entry(efaces,i));
}
else
*nef = 0;
}
int MR_UsesVertex_FNR3R4(MRegion_ptr r, MVertex_ptr v) {
int i, nf;
MFace_ptr face;
MRegion_Adj_FN *adj;
adj = (MRegion_Adj_FN *) r->adj;
nf = List_Num_Entries(adj->rfaces);
for (i = 0; i < nf; i++) {
face = List_Entry(adj->rfaces,i);
if (MF_UsesEntity(face,v,MVERTEX))
return 1;
}
return 0;
}
int MF_UsesEdge_R4(MFace_ptr f, MEdge_ptr e) {
MFace_Adj_R4 *adj = (MFace_Adj_R4 *) f->adj;
int i, nv;
MVertex_ptr v0, v1, v;
v0 = ME_Vertex(e,0);
v1 = ME_Vertex(e,1);
nv = List_Num_Entries(adj->fvertices);
for (i = 0; i < nv; i++) {
v = List_Entry(adj->fvertices,i);
if (v == v0) {
if (List_Entry(adj->fvertices,(i+1)%nv) == v1) {
return 1;
}
}
else if (v == v1) {
if (List_Entry(adj->fvertices,(i+1)%nv) == v0) {
return 1;
}
}
}
return 0;
}
/*
test if a vertex is on partition boundary, for volume mesh
a vertex is on boundary if one of its incident faces has less than 2 neighboring regions
*/
static int vertex_on_boundary3D(MVertex_ptr mv) {
int i, nrf, ok = 0;
MFace_ptr mf;
List_ptr vfaces = MV_Faces(mv);
nrf = List_Num_Entries(vfaces);
for(i = 0; (i < nrf) && !ok; i++) {
List_ptr fregs;
mf = List_Entry(vfaces,i);
fregs = MF_Regions(mf);
if(List_Num_Entries(fregs) <= 1)
ok = 1;
List_Delete(fregs);
}
List_Delete(vfaces);
return ok;
}
/*
test if a vertex is on partition boundary, for surface mesh
a vertex is on boundary if one of its incident edges has less than 2 neighboring faces
*/
static int vertex_on_boundary2D(MVertex_ptr mv) {
int i, nve, ok = 0;
MEdge_ptr me;
List_ptr vedges = MV_Edges(mv);
nve = List_Num_Entries(vedges);
for(i = 0; (i < nve) &!ok; i++) {
List_ptr efaces;
me = List_Entry(vedges,i);
efaces = ME_Faces(me);
if(List_Num_Entries(efaces) <= 1)
ok = 1;
List_Delete(efaces);
}
List_Delete(vedges);
return ok;
}
VMK_ReturnStatus
LogFS_CheckPointCommit(LogFS_MetaLog *ml,
LogFS_CheckPoint *cp,
int buffer,
disk_block_t superTreeRoot,
List_Links *movedNodes)
{
VMK_ReturnStatus status;
List_Links *elem, *next;
cp->superTreeRoot = superTreeRoot;
/* Apply changes to the checkpoint's copy of the node allocation bitmap. */
LIST_FORALL(movedNodes, elem) {
MovedNode *fn = List_Entry(elem, MovedNode, list);
BitClear(cp->nodesBitmap, fn->from);
BitSet(cp->nodesBitmap, fn->to);
}
List_ptr MF_Edges_R4(MFace_ptr f, int dir, MVertex_ptr v0) {
MFace_Adj_R4 *adj = (MFace_Adj_R4 *) f->adj;
int i, j, k, ne, nv;
List_ptr fedges;
MVertex_ptr v, evtx[2], vtmp;
MEdge_ptr e;
k = 0;
if (v0) {
int fnd = 0, idx = 0;
while (!fnd && (v = List_Next_Entry(adj->fvertices,&idx))) {
if (v == v0)
fnd = 1;
else
k++;
}
if (!fnd) {
MSTK_Report("MF_Edges_R4","Cannot find vertex in face",MSTK_ERROR);
return NULL;
}
}
nv = ne = List_Num_Entries(adj->fvertices);
fedges = List_New(ne);
for (i = 0; i < ne; i++) {
j = dir ? (k+i)%ne : (k-i+ne)%ne;
evtx[0] = List_Entry(adj->fvertices,j);
j = dir ? (k+(i+1))%ne : (k-(i+1)+ne)%ne;
evtx[1] = List_Entry(adj->fvertices,j);
#ifdef HASHTABLE
if (evtx[0]>evtx[1]) {
vtmp = evtx[0];
evtx[0] = evtx[1];
evtx[1] = vtmp;
}
e = Hash_Entry(MESH_Hash_Edges(MEnt_Mesh((MEntity_ptr) f)), 2, evtx);
if (e == NULL) {
e = ME_New(MEnt_Mesh((MEntity_ptr) f));
MEnt_Set_Volatile(e);
ME_Set_Vertex(e,0,evtx[0]);
ME_Set_Vertex(e,1,evtx[1]);
ME_Set_GInfo_Auto(e);
Hash_Add(MESH_Hash_Edges(MEnt_Mesh((MEntity_ptr) f)), e, 2, evtx);
}
#else
e = ME_New(MEnt_Mesh((MEntity_ptr)f));
MEnt_Set_Volatile(e);
ME_Set_Vertex(e,0,evtx[0]);
ME_Set_Vertex(e,1,evtx[1]);
ME_Set_GInfo_Auto(e);
#endif
List_Add(fedges,e);
ME_Lock(e);
}
if (!MESH_AutoLock(MEnt_Mesh((MEntity_ptr) f))) {
i = 0;
while ((e = List_Next_Entry(fedges, &i))) {
ME_UnLock(e);
}
}
return fedges;
}
int MESH_BuildFaceClassfn(Mesh_ptr mesh, int use_geometry) {
int i, j, k, idx, idx2, fnd, gfid, gfid2, gdim;
int ngfaces, ngfalloc, grid0, grid1;
int max_gface_id, processedmk, submk;
int nfe, nef, nbf, nfr, nsub, *gfids, (*gfregids)[2];
double PI=3.141592, ang, COSSHARPANG;
MEdge_ptr edge;
MFace_ptr face, subface, adjface;
MRegion_ptr freg0, freg1;
List_ptr fregs, fedges, efaces, ebfaces, gffaces, subfaces;
COSSHARPANG = cos(9*PI/12); /* 135 degrees */
/* Verify that mesh faces on the boundary have classification
information; if not, assign all faces to the same model faces */
ngfaces = 0; ngfalloc = 10;
gfids = (int *) malloc(ngfalloc*sizeof(int));
gfregids = (int (*)[2]) malloc(ngfalloc*sizeof(int [2]));
/* Take stock of existing model face information */
max_gface_id = 0;
idx = 0;
while ((face = MESH_Next_Face(mesh,&idx))) {
gdim = MF_GEntDim(face);
if (gdim != 2)
continue;
gfid = MF_GEntID(face);
if (gfid) {
/* Has this model face been encountered? If not, add it to list
of model faces */
for (i = 0, fnd = 0; i < ngfaces; i++)
if (gfids[i] == gfid) {
fnd = 1;
break;
}
if (!fnd) {
if (gfid > max_gface_id)
max_gface_id = gfid;
if (ngfalloc == ngfaces) {
ngfalloc *= 2;
gfids = (int *) realloc(gfids,ngfalloc*sizeof(int));
gfregids = (int (*)[2])realloc(gfregids,ngfalloc*sizeof(int [2]));
}
gfids[ngfaces] = gfid;
gfregids[ngfaces][0] = gfregids[ngfaces][1] = 0;
fregs = MF_Regions(face);
if (fregs) {
nfr = List_Num_Entries(fregs);
freg0 = List_Entry(fregs,0);
gfregids[ngfaces][0] = MR_GEntID(freg0); /* NOTE 1 (see EOF) */
if (nfr == 2) {
freg1 = List_Entry(fregs,1);
gfregids[ngfaces][1] = MR_GEntID(freg1);
}
List_Delete(fregs);
}
ngfaces++;
}
}
}
/* Build new model face information based on adjacent model region info */
idx = 0;
while ((face = MESH_Next_Face(mesh,&idx))) {
gdim = MF_GEntDim(face);
gfid = MF_GEntID(face);
/* Face has no classification? Assign classification info */
/* Face classified as interior face? Verify */
freg0 = freg1 = NULL;
grid0 = grid1 = 0;
fregs = MF_Regions(face);
if (fregs) {
nfr = List_Num_Entries(fregs);
freg0 = List_Entry(fregs,0);
grid0 = MR_GEntID(freg0);
if (nfr == 2) {
freg1 = List_Entry(fregs,1);
grid1 = MR_GEntID(freg1);
}
List_Delete(fregs);
}
else
nfr = 0;
if (nfr == 2 && (grid0 == grid1)) {
/* Interior face */
MF_Set_GEntDim(face,3);
MF_Set_GEntID(face,grid0);
}
else {
/* Boundary face */
if (gdim > 2 || (gdim == 2 && gfid <= 0)) {
MF_Set_GEntDim(face,2);
/* Check if this type of face with these adjacent regions has
been encountered before; if it has, we just use the
existing model face id */
for (i = 0, fnd = 0; i < ngfaces; i++)
if ((gfregids[i][0] == grid0 && gfregids[i][1] == grid1) ||
(gfregids[i][0] == grid1 && gfregids[i][1] == grid0)) {
fnd = 1;
break;
}
if (fnd)
MF_Set_GEntID(face,gfids[i]);
else {
max_gface_id++;
MF_Set_GEntID(face,max_gface_id);
if (ngfalloc == ngfaces) {
ngfalloc *= 2;
gfids = (int *) realloc(gfids,ngfalloc*sizeof(int));
gfregids = (int (*)[2]) realloc(gfregids,ngfalloc*sizeof(int [2]));
}
gfids[ngfaces] = max_gface_id;
gfregids[ngfaces][0] = grid0;
gfregids[ngfaces][1] = grid1;
ngfaces++;
}
}
}
}
if (use_geometry == 1) {
/* Now assign model face IDs based on whether a sharp set of edges
enclose a set of faces */
for (i = 0; i < ngfaces; i++) {
/* Find all mesh faces with this model face id */
gffaces = List_New(10);
idx = 0;
while ((face = MESH_Next_Face(mesh,&idx))) {
if (MF_GEntDim(face) == 2 && MF_GEntID(face) == gfids[i])
List_Add(gffaces,face);
}
/* Process faces of this list and subdivide them into subfaces */
/* The way we do that is
1) we put an unprocessed face from the original list in a subface
list
2) we then add its neighboring faces to subface list if they are
of the same color (same model face id) and do not have a sharp
edge separating them from the current face
3) we then process the next face in the subface list
4) we are done if we cannot find any more neighbors of faces in
the subface list to add to the subface list
5) we then repeat steps 1 through 4 until we are left with no
more faces to process from the original list
*/
processedmk = MSTK_GetMarker();
nsub = 0;
idx = 0;
while ((face = List_Next_Entry(gffaces,&idx))) {
if (MEnt_IsMarked(face,processedmk))
continue;
/* Found a face in gffaces that has not been processed */
MEnt_Mark(face,processedmk);
submk = MSTK_GetMarker();
subfaces = List_New(10);
List_Add(subfaces,face);
MEnt_Mark(face,submk);
idx2 = 0;
while ((subface = List_Next_Entry(subfaces,&idx2))) {
gfid = MF_GEntID(subface);
fedges = MF_Edges(subface,1,0);
nfe = List_Num_Entries(fedges);
for (j = 0; j < nfe; j++) {
edge = List_Entry(fedges,j);
efaces = ME_Faces(edge);
nef = List_Num_Entries(efaces);
ebfaces = List_New(nef); /* list of boundary faces cnctd 2 edge */
for (k = 0; k < nef; k++) {
adjface = List_Entry(efaces,k);
if (MF_GEntDim(adjface) == 2)
List_Add(ebfaces,adjface);
}
List_Delete(efaces);
nbf = List_Num_Entries(ebfaces);
if (nbf == 2) {
/* we might be on a model face or on a model edge */
adjface = List_Entry(ebfaces,0);
if (adjface == subface)
adjface = List_Entry(ebfaces,1);
gfid2 = MF_GEntID(adjface);
if (gfid == gfid2) {
/* The two faces are of the same ID. If the angle
between them is not sharp they can be classified as
being on the same subface */
ang = MFs_DihedralAngle(subface,adjface,edge);
if (ang <= COSSHARPANG) {
/* Add face2 to subface list unless its already there */
if (!MEnt_IsMarked(adjface,submk)) {
List_Add(subfaces,adjface);
MEnt_Mark(adjface,submk);
}
}
else {
/* The two faces make a very sharp angle. We will
consider the edge b/w them to be a model edge */
/* Tag the edge as being on a model edge (we don't
know the model edge ID as yet) and continue */
ME_Set_GEntDim(edge,1);
ME_Set_GEntID(edge,0);
}
}
else {
/* we reached a model edge */
/* Tag the edge as being on a model edge (we don't know
the model edge ID as yet) and continue */
ME_Set_GEntDim(edge,1);
ME_Set_GEntID(edge,0);
}
}
else {
/* we reached a a model edge */
/* Tag the edge as being on a model edge (we don't know
the model edge ID as yet) and continue */
ME_Set_GEntDim(edge,1);
ME_Set_GEntID(edge,0);
}
List_Delete(ebfaces);
}
/* Finished processing all neighbors of the face */
List_Delete(fedges);
}
/* Now we have a list of faces which we believe constitutes a
model face by itself. If this is the first subface (which
means it could also be the entire model face originally
considered), leave the model face tag as it is. If not,
assign the faces in the subface a new model face ID */
if (nsub != 0) {
max_gface_id++;
idx2 = 0;
while ((subface = List_Next_Entry(subfaces,&idx2)))
MF_Set_GEntID(subface,max_gface_id);
}
nsub++;
/* Done with this subface */
idx2 = 0;
while ((subface = List_Next_Entry(subfaces,&idx2))) {
MEnt_Mark(subface,processedmk);
MEnt_Unmark(subface,submk);
}
MSTK_FreeMarker(submk);
List_Delete(subfaces);
}
List_Unmark(gffaces,processedmk);
MSTK_FreeMarker(processedmk);
List_Delete(gffaces);
}
} /* if use_geometry == 1 */
free(gfids);
free(gfregids);
return 1;
}
MVertex_ptr MF_Split(MFace_ptr fsplit, double *splitxyz) {
Mesh_ptr mesh;
MVertex_ptr vsplit, fv[3];
MEdge_ptr enew, *fedges0, *fedges1, fe;
MFace_ptr fnew[MAXPV2];
MRegion_ptr fr;
int gid, gdim, i, j, idx, nnew;
int nfv, fnewdir[MAXPV2], rfdir;
List_ptr fregs, fverts;
gdim = MF_GEntDim(fsplit);
gid = MF_GEntID(fsplit);
/* Collect information */
mesh = MF_Mesh(fsplit);
/* Regions connected to face */
fregs = MF_Regions(fsplit);
/* Vertices of face */
fverts = MF_Vertices(fsplit,1,0);
nfv = List_Num_Entries(fverts);
/* Create the splitting vertex */
vsplit = MV_New(mesh);
MV_Set_Coords(vsplit,splitxyz);
MV_Set_GEntDim(vsplit,gdim);
MV_Set_GEntID(vsplit,gid);
/* Create the 'nfe' faces */
for (i = 0; i < nfv; i++) {
fv[0] = vsplit;
fv[1] = List_Entry(fverts,i);
fv[2] = List_Entry(fverts,(i+1)%nfv);
fnew[i] = MF_New(mesh);
MF_Set_GEntDim(fnew[i],gdim);
MF_Set_GEntID(fnew[i],gid);
MF_Set_Vertices(fnew[i],3,fv);
}
List_Delete(fverts);
nnew = nfv;
if (fregs) {
for (i = 0; i < List_Num_Entries(fregs); i++) {
fr = List_Entry(fregs,i);
rfdir = MR_FaceDir(fr,fsplit);
for (j = 0; j < nnew; j++)
fnewdir[j] = rfdir;
MR_Replace_Faces(fr,1,&fsplit,nnew,fnew,fnewdir);
}
List_Delete(fregs);
}
MF_Delete(fsplit,0);
return vsplit;
}
int MESH_WriteToFile(Mesh_ptr mesh, const char *filename, RepType rtype, MSTK_Comm comm) {
FILE *fp;
char mesg[80], attname[256];
int i, j, k, idx;
int gdim, gid;
int mvid, mvid0, mvid1, mvid2, mrid2, meid, mfid, mrid;
int nav, nar, nfe, nfv, nrf, nrv, dir=0;
int nv, ne, nf, nr;
int natt, ncomp, ival, nent;
double xyz[3], rval, rdummy, *rval_arr;
void *pval, *pdummy;
MVertex_ptr mv, mv0, mv1, mv2;
MEdge_ptr me;
MFace_ptr mf;
MRegion_ptr mr, mr2;
List_ptr adjverts, mfedges, mfverts, mrfaces, mrverts, adjregs;
RepType reptype;
MAttrib_ptr attrib, vidatt, eidatt, fidatt, ridatt;
MType attentdim;
MAttType atttype;
char modfilename[256];
strcpy(modfilename, filename);
int rank = 0, numprocs = 1;
#ifdef MSTK_HAVE_MPI
if (comm) {
MPI_Comm_size((MPI_Comm)comm, &numprocs);
MPI_Comm_rank((MPI_Comm)comm, &rank);
}
if (numprocs > 1) {
int ndigits = 0;
int div = 1;
while (numprocs/div) {div *= 10; ndigits++;}
sprintf(modfilename,"%s.%d.%0*d",filename,numprocs,ndigits,rank);
}
#endif
if (!(fp = fopen(modfilename,"w"))) {
sprintf(mesg,"Cannot open file %-s for writing",modfilename);
MSTK_Report("MESH_WriteToFile",mesg,MSTK_ERROR);
return 0;
}
if (rtype != UNKNOWN_REP) {
reptype = rtype;
}
else {
reptype = MESH_RepType(mesh);
}
nv = MESH_Num_Vertices(mesh);
ne = MESH_Num_Edges(mesh);
nf = MESH_Num_Faces(mesh);
nr = MESH_Num_Regions(mesh);
fprintf(fp,"MSTK %-2.1lf\n",MSTK_FILE_VER);
fprintf(fp,"%s %d %d %d %d\n",
MESH_rtype_str[reptype],
nv,
(reptype >= R1 && reptype <= R4)?0:ne,
(reptype >= R1 && reptype <= R2 && nr)?0:nf,
nr);
vidatt = MAttrib_New(mesh,"vidatt",INT,MVERTEX);
eidatt = MAttrib_New(mesh,"eidatt",INT,MEDGE);
fidatt = MAttrib_New(mesh,"fidatt",INT,MFACE);
ridatt = MAttrib_New(mesh,"ridatt",INT,MREGION);
idx = 0; i = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
MEnt_Set_AttVal(mv,vidatt,++i,0.0,NULL);
idx = 0; i = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
MEnt_Set_AttVal(me,eidatt,++i,0.0,NULL);
idx = 0; i = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
MEnt_Set_AttVal(mf,fidatt,++i,0.0,NULL);
idx = 0; i = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
MEnt_Set_AttVal(mr,ridatt,++i,0.0,NULL);
fprintf(fp,"vertices\n");
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
MV_Coords(mv,xyz);
gdim = MV_GEntDim(mv);
gid = MV_GEntID(mv);
fprintf(fp,"%24.16lf %24.16lf %24.16lf %d %d\n",
xyz[0],xyz[1],xyz[2],gdim,gid);
}
if (reptype == R2 || reptype == R4) {
fprintf(fp,"adjvertices\n");
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
nav = MV_Num_AdjVertices(mv);
fprintf(fp,"%d ",nav);
adjverts = MV_AdjVertices(mv);
for (j = 0; j < nav; j++) {
mv2 = List_Entry(adjverts,j);
MEnt_Get_AttVal(mv2,vidatt,&mvid2,&rval,&pval);
fprintf(fp,"%d ",mvid2);
}
fprintf(fp,"\n");
List_Delete(adjverts);
}
}
if (reptype <= F4 && ne) {
fprintf(fp,"edges\n");
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
mv0 = ME_Vertex(me,0);
MEnt_Get_AttVal(mv0,vidatt,&mvid0,&rval,&pval);
mv1 = ME_Vertex(me,1);
MEnt_Get_AttVal(mv1,vidatt,&mvid1,&rval,&pval);
gdim = ME_GEntDim(me);
gid = ME_GEntID(me);
fprintf(fp,"%d %d \t%d %d\n",mvid0,mvid1,gdim,gid);
}
}
if (reptype <= F4) {
/* For full representations, always write out faces in terms of edges */
fprintf(fp,"faces edge\n");
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
nfe = MF_Num_Edges(mf);
fprintf(fp,"%d ",nfe);
mfedges = MF_Edges(mf,1,0);
for (j = 0; j < nfe; j++) {
me = List_Entry(mfedges,j);
dir = MF_EdgeDir_i(mf,j);
MEnt_Get_AttVal(me,eidatt,&meid,&rval,&pval);
if (dir != 1) meid = -meid;
fprintf(fp,"%d ",meid);
}
List_Delete(mfedges);
gdim = MF_GEntDim(mf);
/*
gent = MF_GEntity(mf);
gid = gent ? -99 : 0;
*/
gid = MF_GEntID(mf);
fprintf(fp,"\t%d %d\n",gdim,gid);
}
}
else {
/* For reduced representations, R3 and R4 always write out faces
in terms of vertices. For reduced representations, R1 and R2
write out faces in terms of vertices only when there are no
regions (i.e. faces are the highest level mesh entities) */
if ((reptype > R2) || (nr == 0)) {
fprintf(fp,"faces vertex\n");
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
nfv = MF_Num_Edges(mf);
fprintf(fp,"%d ",nfv);
mfverts = MF_Vertices(mf,1,0);
for (j = 0; j < nfv; j++) {
mv = List_Entry(mfverts,j);
MEnt_Get_AttVal(mv,vidatt,&mvid,&rval,&pval);
fprintf(fp,"%d ",mvid);
}
List_Delete(mfverts);
gdim = MF_GEntDim(mf);
gid = MF_GEntID(mf);
fprintf(fp,"\t%d %d\n",gdim,gid);
}
}
}
if (nr) {
if (reptype <= F4 || reptype >= R2) {
fprintf(fp,"regions face\n");
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
nrf = MR_Num_Faces(mr);
fprintf(fp,"%d ",nrf);
mrfaces = MR_Faces(mr);
for (j = 0; j < nrf; j++) {
mf = List_Entry(mrfaces,j);
dir = MR_FaceDir_i(mr,j);
MEnt_Get_AttVal(mf,fidatt,&mfid,&rval,&pval);
if (dir != 1) mfid = -mfid;
fprintf(fp,"%d ",mfid);
}
List_Delete(mrfaces);
gdim = MF_GEntDim(mr);
gid = MR_GEntID(mr);
fprintf(fp,"\t%d %d\n",gdim,gid);
}
}
else {
fprintf(fp,"regions vertex\n");
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
nrv = MR_Num_Vertices(mr);
fprintf(fp,"%d ",nrv);
mrverts = MR_Vertices(mr);
for (j = 0; j < nrv; j++) {
mv = List_Entry(mrverts,j);
MEnt_Get_AttVal(mv,vidatt,&mvid,&rval,&pval);
fprintf(fp,"%d ",mvid);
}
List_Delete(mrverts);
gdim = MR_GEntDim(mr);
gid = MR_GEntID(mr);
fprintf(fp,"\t%d %d\n",gdim,gid);
}
}
if (reptype == R2 || reptype == R4) {
fprintf(fp,"adjregions\n");
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
nar = MR_Num_Faces(mr);
fprintf(fp,"%d ",nar);
adjregs = MR_AdjRegions(mr);
for (j = 0; j < nar; j++) {
mr2 = List_Entry(adjregs,j);
if ((long) mr2 == -1)
fprintf(fp,"%d ",0);
else {
MEnt_Get_AttVal(mr2,ridatt,&mrid2,&rval,&pval);
fprintf(fp,"%d ",mrid2);
}
}
fprintf(fp,"\n");
List_Delete(adjregs);
}
}
}
/* Write out attributes if there are more than the 4 that we created
in this routine */
if ((natt = MESH_Num_Attribs(mesh)) > 4) {
fprintf(fp,"attributes\n");
for (i = 0; i < natt; i++) {
attrib = MESH_Attrib(mesh,i);
/* Don't write out attribs we created for the internal use of
this routine */
if (attrib == vidatt || attrib == eidatt || attrib == fidatt ||
attrib == ridatt) continue;
MAttrib_Get_Name(attrib,attname);
atttype = MAttrib_Get_Type(attrib);
if (atttype == POINTER) continue; /* cannot write it out */
ncomp = MAttrib_Get_NumComps(attrib);
attentdim = MAttrib_Get_EntDim(attrib);
/* First count how many entities actually have the attribute assigned */
nent = 0;
switch(attentdim) {
case MVERTEX:
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
if (MEnt_Get_AttVal(mv,attrib,&ival,&rval,&pval)) nent++;
break;
case MEDGE:
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
if (MEnt_Get_AttVal(me,attrib,&ival,&rval,&pval)) nent++;
break;
case MFACE:
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
if (MEnt_Get_AttVal(mf,attrib,&ival,&rval,&pval)) nent++;
break;
case MREGION:
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
if (MEnt_Get_AttVal(mr,attrib,&ival,&rval,&pval)) nent++;
break;
case MALLTYPE:
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
if (MEnt_Get_AttVal(mv,attrib,&ival,&rval,&pval)) nent++;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
if (MEnt_Get_AttVal(me,attrib,&ival,&rval,&pval)) nent++;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
if (MEnt_Get_AttVal(mf,attrib,&ival,&rval,&pval)) nent++;
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
if (MEnt_Get_AttVal(mr,attrib,&ival,&rval,&pval)) nent++;
break;
default:
break;
} /* switch (attentdim) */
/* No point in writing out attribute if no entity uses it! Or is there? */
if (!nent) continue;
fprintf(fp,"%-s\n",attname);
switch(atttype) {
case INT:
fprintf(fp,"INT\n");
break;
case DOUBLE:
fprintf(fp,"DOUBLE\n");
break;
case VECTOR:
fprintf(fp,"VECTOR\n");
break;
case TENSOR:
fprintf(fp,"TENSOR\n");
break;
default:
MSTK_Report("MESH_WriteToFile",
"Unrecognizable or unprintable attribute type\n",MSTK_WARN);
continue;
}
fprintf(fp,"%-d\n",ncomp);
switch(attentdim) {
case MVERTEX:
fprintf(fp,"MVERTEX\n");
break;
case MEDGE:
fprintf(fp,"MEDGE\n");
break;
case MFACE:
fprintf(fp,"MFACE\n");
break;
case MREGION:
fprintf(fp,"MREGION\n");
break;
case MALLTYPE:
fprintf(fp,"MALLTYPE\n");
break;
default:
MSTK_Report("Mesh_WriteToFile","Unrecognized entity type",MSTK_WARN);
break;
}
fprintf(fp,"%-d\n",nent);
switch(attentdim) {
case MVERTEX:
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
if (MEnt_Get_AttVal(mv,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mv,vidatt,&mvid,&rdummy,&pdummy);
fprintf(fp,"0 %-d ",mvid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
break;
case MEDGE:
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
if (MEnt_Get_AttVal(me,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(me,eidatt,&meid,&rdummy,&pdummy);
fprintf(fp,"1 %-d ",meid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
break;
case MFACE:
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
if (MEnt_Get_AttVal(mf,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mf,fidatt,&mfid,&rdummy,&pdummy);
fprintf(fp,"2 %-d ",mfid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
break;
case MREGION:
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
if (MEnt_Get_AttVal(mr,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mr,ridatt,&mrid,&rdummy,&pdummy);
fprintf(fp,"3 %-d ",mrid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
break;
case MALLTYPE:
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
if (MEnt_Get_AttVal(mv,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mv,vidatt,&mvid,&rdummy,&pdummy);
fprintf(fp,"0 %-d ",mvid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
if (MEnt_Get_AttVal(me,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(me,eidatt,&meid,&rdummy,&pdummy);
fprintf(fp,"1 %-d ",meid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
if (MEnt_Get_AttVal(mf,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mf,fidatt,&mfid,&rdummy,&pdummy);
fprintf(fp,"2 %-d ",mfid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
if (MEnt_Get_AttVal(mr,attrib,&ival,&rval,&pval)) {
MEnt_Get_AttVal(mr,ridatt,&mrid,&rdummy,&pdummy);
fprintf(fp,"3 %-d ",mrid);
switch (atttype) {
case INT:
fprintf(fp," %-d",ival);
break;
case DOUBLE:
fprintf(fp," %-lf ",rval);
break;
case VECTOR: case TENSOR:
rval_arr = (double *) pval;
for (k = 0; k < ncomp; k++)
fprintf(fp," %-lf ",rval_arr[k]);
break;
default:
break;
}
fprintf(fp,"\n");
}
}
break;
default:
break;
} /* switch (attentdim) */
} /* for (i = 0; i < natt) */
} /* if (Mesh_Num_Attribs(mesh)) */
idx = 0; i = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
MEnt_Rem_AttVal(mv,vidatt);
idx = 0; i = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
MEnt_Rem_AttVal(me,eidatt);
idx = 0; i = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
MEnt_Rem_AttVal(mf,fidatt);
idx = 0; i = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
MEnt_Rem_AttVal(mr,ridatt);
MAttrib_Delete(vidatt);
MAttrib_Delete(eidatt);
MAttrib_Delete(fidatt);
MAttrib_Delete(ridatt);
fclose(fp);
return 1;
}
int ME_Set_GInfo_Auto(MEdge_ptr e) {
MVertex_ptr v0, v1;
int gdim0, gdim1, gid0, gid1, egdim, egid;
v0 = e->vertex[0];
gdim0 = MV_GEntDim(v0); gid0 = MV_GEntID(v0);
v1 = e->vertex[1];
gdim1 = MV_GEntDim(v1); gid1 = MV_GEntID(v1);
egdim = 4;
egid = -1;
if (gdim0 == gdim1) {
if (gid0 == gid1) {
egdim = gdim0;
egid = gid0;
}
else { /* Unknown classification */
egdim = 4;
egid = -1;
}
}
else {
if (gdim0 > gdim1) {
egdim = gdim0;
egid = gid0;
}
else {
egdim = gdim1;
egid = gid1;
}
}
/* if the classification could not be determined, look at
higher-dimensional entities connected to the edge to see if we
can at least find the dimension of the model entity on which it
is classified */
if (egdim == 4) {
List_ptr efaces;
MFace_ptr eface;
efaces = ME_Faces(e);
if (!efaces) {
egdim = 2;
egid = -1;
}
else {
int allinterior, allsame, idx, gfid0;
/* First check if all faces connected to edge are interior faces */
idx = 0;
allinterior = 1;
while ((eface = List_Next_Entry(efaces,&idx))) {
if (MEnt_GEntDim((MEntity_ptr) eface) != 3) {
allinterior = 0;
break;
}
}
if (allinterior) {
egdim = 3;
egid = MEnt_GEntID((MEntity_ptr) List_Entry(efaces,0));
}
else {
/* edge has some boundary faces connected to it. If all the
boundary faces are classified on the same model face,
then the edge is on that model face. If boundary faces
are on different model faces, the edge is on a model
edge, although we don't know which one */
gfid0 = -1;
allsame = 1;
idx = 0;
while ((eface = List_Next_Entry(efaces,&idx))) {
if (MEnt_GEntDim((MEntity_ptr) eface) != 2) continue;
if (gfid0 == -1) { /* first boundary face */
gfid0 = MEnt_GEntID((MEntity_ptr) eface);
}
else {
if (MEnt_GEntID((MEntity_ptr) eface) != gfid0) {
allsame = 0;
break;
}
}
}
if (allsame && gfid0 != -1) {
egdim = 2;
egid = gfid0;
}
else {
egdim = 1;
egid = -1;
}
}
List_Delete(efaces);
}
}
MEnt_Set_GEntDim((MEntity_ptr) e,egdim);
MEnt_Set_GEntID((MEntity_ptr) e,egid);
if (egdim == 4)
return 0;
else
return 1;
}
int MESH_CheckTopo(Mesh_ptr mesh) {
int valid = 1;
char mesg[256], funcname[32] = "MESH_CheckTopo";
int idx1, idx2, idx3, idx4;
MVertex_ptr mv;
MEdge_ptr me, ve, fe, re;
MFace_ptr mf, vf, ef, rf;
MRegion_ptr mr, vr, er, fr;
int found, done;
int dir;
int i, j, k;
int nfe;
int vid, eid, fid, rid;
int gvid, geid, gfid, grid;
int gvdim, gedim, gfdim, grdim;
int maxiter = 1000;
List_ptr vedges, vfaces, vregions;
List_ptr efaces;
List_ptr fverts, fedges, fregs, fregs1;
List_ptr rverts, redges, rfaces;
/*****************************************************************/
/* Vertices */
/*****************************************************************/
/* Check that edges connected to vertices reference the vertices */
/* Also check that the classification of the vertex is consistent
with respect to the edge */
int first_unknown_classfn = 1;
idx1 = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx1))) {
#ifdef MSTK_HAVE_MPI
if (MV_PType(mv) == PGHOST) continue;
#endif
vid = MV_ID(mv);
gvdim = MV_GEntDim(mv);
gvid = MV_GEntID(mv);
if (gvdim == 4 && first_unknown_classfn) {
sprintf(mesg, "Vertex %-d - classification unknown\n", vid);
MSTK_Report(funcname, mesg, MSTK_WARN);
first_unknown_classfn = 0;
}
vedges = MV_Edges(mv);
if (!vedges) {
sprintf(mesg,"Vertex %-d does not have any connected edges\n",vid);
MSTK_Report(funcname,mesg,MSTK_WARN);
continue;
}
idx2 = 0;
while ((ve = List_Next_Entry(vedges,&idx2))) {
eid = ME_ID(ve);
if (ME_Vertex(ve,0) != mv && ME_Vertex(ve,1) != mv) {
sprintf(mesg,"Vertex %-d connected to edge %-d but edge does not use vertex",vid,eid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
}
if (gvdim == 1) {
/* If vertex is classified on a model edge, then it should be
connected to two and only two edges that are classified on
the same model edge */
int ne = 0;
idx2 = 0;
while ((ve = List_Next_Entry(vedges,&idx2))) {
gedim = ME_GEntDim(ve);
geid = ME_GEntID(ve);
if (gedim == 1 && geid == gvid) ne++;
}
if (ne != 2) {
sprintf(mesg,"Vertex %-d classified on model edge %-d but it is not \n connected to two edges classified on this model edge",vid,gvid);
MSTK_Report(funcname,mesg,MSTK_WARN);
}
}
List_Delete(vedges);
if (gvdim == 2) {
MEdge_ptr e0, ecur, enxt;
MFace_ptr fcur;
int flipped = 0;
/* If vertex is classified on a model face, then we should be
able to find a ring of faces classified on that model
face */
vfaces = MV_Faces(mv);
found = 0;
idx2 = 0;
while ((vf = List_Next_Entry(vfaces,&idx2))) {
if (MF_GEntDim(vf) == 2) {
found = 1;
break;
}
}
List_Delete(vfaces);
if (!found) {
sprintf(mesg,"Vertex %-d classified on model face %-d but could not \n find connected face classified on this model face",vid,gvid);
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
}
fcur = vf;
fedges = MF_Edges(fcur,1,mv);
nfe = List_Num_Entries(fedges);
e0 = List_Entry(fedges,0);
ecur = e0;
enxt = List_Entry(fedges,nfe-1);
List_Delete(fedges);
done = 0; i = 0;
while (!done) {
ecur = enxt;
efaces = ME_Faces(ecur);
found = 0;
idx3 = 0;
while ((ef = List_Next_Entry(efaces,&idx3))) {
if (ef != fcur && MF_GEntDim(ef) == 2 && MF_GEntID(ef) == gvid) {
fcur = ef;
found = 1;
break;
}
}
List_Delete(efaces);
if (!found) {
sprintf(mesg,"Could not find next boundary face connected to vertex %-d",vid);
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
break;
}
fedges = MF_Edges(fcur,1,mv);
nfe = List_Num_Entries(fedges);
if (List_Entry(fedges,0) == ecur)
enxt = List_Entry(fedges,nfe-1);
else if (List_Entry(fedges,nfe-1) == ecur) {
enxt = List_Entry(fedges,0);
flipped = 1;
}
else {
sprintf(mesg,"Could not find next edge while traversing around vertex %-d on model face %-d",vid,gvid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
}
List_Delete(fedges);
if (enxt == e0)
done = 1;
if (++i > maxiter)
break;
}
if (!done) {
sprintf(mesg,"Vertex %-d classified on model face %-d but could not find ring of faces classified on this model face",vid,gvid);
MSTK_Report(funcname,mesg,MSTK_WARN);
}
if (done && flipped) {
List_ptr fregs = MF_Regions(fcur);
if (List_Num_Entries(fregs) < 2) {
sprintf(mesg,"Inconsistent orientations of boundary faces around vertex %-d",vid);
MSTK_Report(funcname,mesg,MSTK_WARN);
}
if (fregs) List_Delete(fregs);
}
}
} /* while ((mv = MESH_Next_Vertex(mesh,&idx1))) */
/*****************************************************************/
/* Edges */
/*****************************************************************/
first_unknown_classfn = 1;
idx1 = 0;
while ((me = MESH_Next_Edge(mesh,&idx1))) {
#ifdef MSTK_HAVE_MPI
if (ME_PType(me) == PGHOST) continue;
#endif
eid = ME_ID(me);
gedim = ME_GEntDim(me);
geid = ME_GEntID(me);
if (gedim == 4 && first_unknown_classfn) {
sprintf(mesg, "Edge %-d - unknown classification", eid);
MSTK_Report(funcname, mesg, MSTK_WARN);
first_unknown_classfn = 0;
}
if (ME_Vertex(me,0) == ME_Vertex(me,1)) {
sprintf(mesg,"Edge %-d has repeated vertices",eid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
}
for (i = 0; i < 2; i++) {
MVertex_ptr ev = ME_Vertex(me,i);
vid = MV_ID(ev);
gvid = MV_GEntID(ev);
gvdim = MV_GEntDim(ev);
if (gvdim != 4 && gvdim != 4) { /* vertex and edge classifn is known */
if (gedim < gvdim) {
sprintf(mesg,"Edge %-d classified on lower dimensional entity than connected vertex %-d",eid,vid);
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
}
else if (gedim == gvdim && geid != gvid) {
sprintf(mesg,"Edge %-d and its vertex %-d classified on different entities of the same dimension",eid,vid);
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
}
}
vedges = MV_Edges(ev);
if (!List_Contains(vedges,me)) {
sprintf(mesg,"Edge %-d sees vertex %-d but not vice versa",eid,vid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
List_Delete(vedges);
if (gedim == 2) {
MFace_ptr ebf[2], fcur, fnxt;
MRegion_ptr rcur;
int nf, nfr;
List_ptr eregs;
/* Edge is classified on model face - it should be connected
to two and only two faces also classified on this model
face */
ebf[0] = ebf[1] = NULL;
nf = 0;
efaces = ME_Faces(me);
idx2 = 0;
while ((ef = List_Next_Entry(efaces,&idx2))) {
fid = MF_ID(ef);
if (MF_GEntDim(ef) == 2) {
nf++;
if (gedim == 2 && MF_GEntID(ef) != geid) {
sprintf(mesg,"Face %-d connected to edge %-d classified on different model face",fid,eid);
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
}
if (ebf[0] == NULL)
ebf[0] = ef;
else
ebf[1] = ef;
}
}
List_Delete(efaces);
if (nf != 2) {
sprintf(mesg,"Boundary edge %-d is not connected to exactly two\n faces classified on the boundary",eid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
eregs = ME_Regions(me);
if (!eregs)
continue;
else
List_Delete(eregs);
/* Can we go from f0 to f1 in one or two dirs? */
fcur = ebf[0];
fnxt = NULL;
fregs = MF_Regions(fcur);
if (!fregs) {
fid = MF_ID(fcur);
sprintf(mesg,"Edge %-d connected to regions but face %-d is not",eid,fid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
nfr = List_Num_Entries(fregs);
for (i = 0; i < nfr; i++) {
rcur = List_Entry(fregs,i);
rfaces = MR_Faces(rcur);
idx3 = 0;
found = 0;
while ((rf = List_Next_Entry(rfaces,&idx3))) {
if (rf != fcur && MF_UsesEntity(rf,me,1)) {
found = 1;
fnxt = rf;
break;
}
}
List_Delete(rfaces);
if (!found) {
rid = MR_ID(rcur);
sprintf(mesg,"Could not find second face in region %-d using edge %-d",rid,eid);
}
done = 0; j = 0;
while (!done) {
fcur = fnxt;
fid = MF_ID(fcur);
if (fnxt == ebf[1]) {
done = 1;
break;
}
fregs1 = MF_Regions(fcur);
idx3 = 0;
while ((fr = List_Next_Entry(fregs1,&idx3))) {
if (fr != rcur) {
rcur = fr;
found = 1;
break;
}
}
List_Delete(fregs1);
if (!found) {
sprintf(mesg,"Could not find next region around edge %-d",eid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
break;
}
rfaces = MR_Faces(rcur);
idx3 = 0;
found = 0;
while ((rf = List_Next_Entry(rfaces,&idx3))) {
if (rf != fcur && MF_UsesEntity(rf,me,1)) {
found = 1;
fnxt = rf;
break;
}
}
List_Delete(rfaces);
if (!found) {
rid = MR_ID(rcur);
sprintf(mesg,"Could not find second face in region %-d using edge %-d",rid,eid);
}
if (++j > maxiter)
break;
} /* while (!done) */
if (!done) {
sprintf(mesg,"Could not traverse around edge %-d from face %-d to face %-d",eid,MF_ID(ebf[0]),MF_ID(ebf[1]));
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
} /* for (i = 0; i < nfr; i++) */
List_Delete(fregs);
} /* if (geid == 2) */
} /* for (i = 0; i < 2; i++) */
} /* while ((me = MESH_Next_Edge(mesh,&idx1))) */
/*****************************************************************/
/* Faces */
/*****************************************************************/
first_unknown_classfn = 1;
idx1 = 0;
while ((mf = MESH_Next_Face(mesh,&idx1))) {
#ifdef MSTK_HAVE_MPI
if (MF_PType(mf) == PGHOST) continue;
#endif
fid = MF_ID(mf);
gfid = MF_GEntID(mf);
gfdim = MF_GEntDim(mf);
if (gfdim == 4 && first_unknown_classfn) {
sprintf(mesg, "Face %-d - unknown classification", fid);
MSTK_Report(funcname, mesg, MSTK_WARN);
first_unknown_classfn = 0;
}
fedges = MF_Edges(mf,1,0);
if (List_Num_Entries(fedges) < 3) {
sprintf(mesg,"Face %-d has less than 3 edges",fid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
}
idx2 = 0;
while ((fe = List_Next_Entry(fedges,&idx2))) {
eid = ME_ID(fe);
geid = ME_GEntID(fe);
gedim = ME_GEntDim(fe);
if (gedim != 4 && gfdim != 4) { /* Edge, Face classfn is known */
if (gfdim < gedim) {
sprintf(mesg,"Face %-d classified on lower order entity than edge %-d",fid,ME_ID(fe));
MSTK_Report(funcname,mesg,MSTK_WARN);
valid = 0;
}
else if (gedim == gfdim && geid != gfid) {
sprintf(mesg,"Face %-d and edge %-d classified on different\n entities of the same dimension",fid,eid);
MSTK_Report(funcname,mesg,MSTK_WARN);
}
}
efaces = ME_Faces(fe);
if (!List_Contains(efaces,mf)) {
sprintf(mesg,"Face %-d refers to edge %-d but not vice versa",fid,ME_ID(fe));
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
List_Delete(efaces);
}
List_Delete(fedges);
fregs = MF_Regions(mf);
if (gfdim == 3) {
if (!fregs || List_Num_Entries(fregs) != 2) {
sprintf(mesg,"Interior face %-d does not have two connected regions",fid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
}
if (fregs) {
if (List_Num_Entries(fregs) == 2) {
if (MR_FaceDir(List_Entry(fregs,0),mf) == MR_FaceDir(List_Entry(fregs,1),mf)) {
sprintf(mesg,"Both regions using face %-d in the same sense",fid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
}
List_Delete(fregs);
}
} /* while ((mf = MESH_Next_Face(mesh,&idx1))) */
/*****************************************************************/
/* Regions */
/*****************************************************************/
idx1 = 0;
while ((mr = MESH_Next_Region(mesh,&idx1))) {
#ifdef MSTK_HAVE_MPI
if (MR_PType(mr) == PGHOST) continue;
#endif
rid = MR_ID(mr);
grid = MR_GEntID(mr);
rfaces = MR_Faces(mr);
int nrf = List_Num_Entries(rfaces);
if (nrf < 4) {
sprintf(mesg,"Region %-d has less than 4 faces",rid);
MSTK_Report(funcname,mesg,MSTK_ERROR);
}
/* Check that face to region and region to face links are consistent
with each other */
int *rfdirs = (int *) malloc(nrf*sizeof(int));
i = 0;
idx2 = 0;
while ((rf = List_Next_Entry(rfaces,&idx2))) {
rfdirs[i] = MR_FaceDir_i(mr,i);
if (mr != MF_Region(rf,!rfdirs[i])) {
sprintf(mesg,"Region %-d to face %-d dir inconsistent with \n face to region dir",rid,MF_ID(rf));
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
i++;
}
/* Check that faces of a region have consistent orientation in
the region with respect to each other */
for (i = 0; i < nrf; i++) {
MFace_ptr rf, rf2;
rf = List_Entry(rfaces,i);
fedges = MF_Edges(rf,1,0);
nfe = List_Num_Entries(fedges);
for (j = 0; j < nfe; j++) {
fe = List_Entry(fedges,j);
int fedir = MF_EdgeDir_i(rf,j);
/* Find adjacent face in the region */
found = 0;
for (k = 0; k < nrf; k++) {
rf2 = List_Entry(rfaces,k);
if (rf != rf2 && MF_UsesEntity(rf2,fe,MEDGE)) {
found = 1;
break;
}
}
if (!found) {
sprintf(mesg,"Cannot find another face in region %-d sharing edge %-d (ID = %-d) of face with ID = %-d",MR_ID(mr),j,ME_ID(fe),MF_ID(rf));
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
int fedir_adj = MF_EdgeDir(rf2,fe);
/* If the two faces use the edge in opposite directions then
the region should use the faces in the same direction and
vice versa */
if (((fedir_adj == fedir) && (rfdirs[i] == rfdirs[k])) ||
((fedir_adj != fedir) && (rfdirs[i] != rfdirs[k]))) {
sprintf(mesg,"Region %-d faces are inconsistently oriented",MR_ID(mr));
MSTK_Report(funcname,mesg,MSTK_ERROR);
valid = 0;
}
}
List_Delete(fedges);
}
List_Delete(rfaces);
free(rfdirs);
}
return valid;
} /* int MESH_CheckTopo */
int MESH_ExportToSTL(Mesh_ptr mesh, const char *filename) {
List_ptr fverts;
MFace_ptr face;
char mesg[256];
int i, j, nfv, idx;
double fxyz[MAXPV2][3], normal[3], len, vec1[3], vec2[3];
FILE *fp;
if (!(fp = fopen(filename,"w"))) {
sprintf(mesg,"Couldn't open output file %s\n",filename);
MSTK_Report("MESH_ExportToSTL",mesg,MSTK_ERROR);
return 0;
}
if (MESH_Num_Regions(mesh)) {
MSTK_Report("MESH_ExportToSTL","Cannot export solid meshes\n",MSTK_ERROR);
return 0;
}
idx = 0;
while ((face = MESH_Next_Face(mesh,&idx))) {
if (MF_Num_Edges(face) != 3) {
MSTK_Report("MESH_ExportToSTL","Can only export triangular meshes to STL\n",MSTK_ERROR);
MSTK_Report("MESH_ExportToSTL","If you need polygonal meshes to be exported\n",MSTK_MESG);
MSTK_Report("MESH_ExportToSTL","as a triangulated surface mesh to STL, \n",MSTK_MESG);
MSTK_Report("MESH_ExportToSTL","please send a mail to [email protected]\n",MSTK_MESG);
return 0;
}
}
/* Opening line for STL file */
fprintf(fp,"solid\n");
idx = 0;
while ((face = MESH_Next_Face(mesh,&idx))) {
fverts = MF_Vertices(face,1,0);
nfv = List_Num_Entries(fverts);
for (i = 0; i < nfv; i++)
MV_Coords(List_Entry(fverts,i),fxyz[i]);
{
vec1[0] = fxyz[1][0]-fxyz[0][0];
vec1[1] = fxyz[1][1]-fxyz[0][1];
vec1[2] = fxyz[1][2]-fxyz[0][2];
vec2[0] = fxyz[2][0]-fxyz[0][0];
vec2[1] = fxyz[2][1]-fxyz[0][1];
vec2[2] = fxyz[2][2]-fxyz[0][2];
normal[0] = vec1[1]*vec2[2] - vec1[2]*vec2[1];
normal[1] = vec1[2]*vec2[0] - vec1[0]*vec2[2];
normal[2] = vec1[0]*vec2[1] - vec1[1]*vec2[0];
len = sqrt(normal[0]*normal[0]+normal[1]*normal[1]+normal[2]*normal[2]);
normal[0] /= len; normal[1] /= len; normal[2] /= len;
}
fprintf(fp,"facet normal %12.8lf %12.8lf %12.8lf\n",normal[0],normal[1],normal[2]);
fprintf(fp," outer loop\n");
for (j = 0; j < 3; j++)
fprintf(fp," vertex %20.10lf %20.10lf %20.10lf\n",fxyz[j][0],fxyz[j][1],fxyz[j][2]);
fprintf(fp,"endloop");
fprintf(fp,"endfacet");
}
fprintf(fp,"endsolid");
fclose(fp);
return 1;
}
double MFs_DihedralAngle(MFace_ptr face1, MFace_ptr face2, MEdge_ptr edge) {
int i, fnd, nfe1, fedir, nfv1, nfv2;
double fxyz[MAXPV2][3], vec1[3], vec2[3];
double normal1[3], normal2[3], dp, mid[3];
MVertex_ptr fv, ev0, ev1;
List_ptr fedges1, fedges2, fverts1, fverts2;
if (!edge) {
fedges1 = MF_Edges(face1,1,0);
nfe1 = List_Num_Entries(fedges1);
fedges2 = MF_Edges(face2,1,0);
for (i = 0, fnd = 0; i < nfe1 && !fnd; i++) {
edge = List_Entry(fedges1,i);
if (List_Contains(fedges2,edge))
fnd = 1;
}
List_Delete(fedges1);
List_Delete(fedges2);
if (!fnd) {
MSTK_Report("MFs_DihedralAngle","Faces do not share common edge",MSTK_ERROR);
return 0.0;
}
}
/* For non-convex faces, picking the three points from which to
calculate the normal is an issue. We will pick the two points
of the common edge and the geometric center of the face.
THIS MAY NOT WORK IF THE GEOMETRIC CENTER IS OUTSIDE THE FACE
Eventually we will have to find a point in the face such that
all triangles formed by connecting the point and each of the
edges have consistent normals */
ev0 = ME_Vertex(edge,0);
ev1 = ME_Vertex(edge,1);
/* Normal of face 1 */
fedir = MF_EdgeDir(face1,edge);
fverts1 = MF_Vertices(face1,fedir,ev0);
nfv1 = List_Num_Entries(fverts1);
for (i = 0; i < nfv1; i++) {
fv = List_Entry(fverts1,i);
MV_Coords(fv,fxyz[i]);
}
List_Delete(fverts1);
MSTK_VDiff3(fxyz[1],fxyz[0],vec1);
if (nfv1 == 3) { /* Triangles - always convex */
MSTK_VDiff3(fxyz[2],fxyz[0],vec2);
}
else { /* Others - can be non-convex */
/* use geometric center as third point */
mid[0] = mid[1] = mid[2] = 0.0;
for (i = 0; i < nfv1; i++) {
mid[0] += fxyz[i][0];
mid[1] += fxyz[i][1];
mid[2] += fxyz[i][2];
}
mid[0] /= nfv1; mid[1] /= nfv1; mid[2] /= nfv1;
MSTK_VDiff3(mid,fxyz[0],vec2);
}
MSTK_VCross3(vec1,vec2,normal1);
MSTK_VNormalize3(normal1);
/* Normal of face 2 */
fedir = MF_EdgeDir(face2,edge);
fverts2 = MF_Vertices(face2,!fedir,ev1);
nfv2 = List_Num_Entries(fverts2);
for (i = 0; i < nfv2; i++) {
fv = List_Entry(fverts2,i);
MV_Coords(fv,fxyz[i]);
}
List_Delete(fverts2);
MSTK_VDiff3(fxyz[1],fxyz[0],vec1);
if (nfv1 == 3) { /* Triangles - always convex */
MSTK_VDiff3(fxyz[2],fxyz[0],vec2);
}
else { /* Others - can be non-convex */
/* use geometric center as third point */
mid[0] = mid[1] = mid[2] = 0.0;
for (i = 0; i < nfv2; i++) {
mid[0] += fxyz[i][0];
mid[1] += fxyz[i][1];
mid[2] += fxyz[i][2];
}
mid[0] /= nfv2; mid[1] /= nfv2; mid[2] /= nfv2;
MSTK_VDiff3(mid,fxyz[0],vec2);
}
MSTK_VCross3(vec1,vec2,normal2);
MSTK_VNormalize3(normal2);
/* We have to negate the second normal. Otherwise we will get a
dihedral angle of 0 for two faces in a plane when it should
be 180 */
MSTK_VNeg3(normal2);
/* Angle between normals */
dp = MSTK_VDot3(normal1,normal2);
return dp;
}
LIST_FORALL_SAFE(movedNodes, elem, next) {
MovedNode *fn = List_Entry(elem, MovedNode, list);
BitClear(nodesBitmap, fn->from);
List_Remove(elem);
free(fn);
}
int MESH_BuildEdgeClassfn(Mesh_ptr mesh, int use_geometry) {
int i, j, k, idx, idx2, fnd, fnd2, geid, geid2, gdim;
int ngedges, ngealloc, ngef, max_loc_gfids, *loc_gfids;
int max_gedge_id;
int nve, nbe, nef, nsub, *geids, **gefaceids;
double PI=3.141592, cosang, COSSHARPANG;
MVertex_ptr ev[2];
MEdge_ptr edge, subedge, adjedge;
MFace_ptr eface;
List_ptr efaces, vedges, vbedges, geedges, subedges;
double rval;
void *pval;
COSSHARPANG = cos(5*PI/6); /* 165 degrees */
/* Verify that mesh edges on the boundary have classification
information; if not, assign all edges to the same model edge */
ngedges = 0; ngealloc = 10;
geids = (int *) malloc(ngealloc*sizeof(int)); /* model edge ids */
/* Number of model faces connected to edge followed by model face ids */
gefaceids = (int **) malloc(ngealloc*sizeof(int *));
/* Take stock of existing model edge information */
max_gedge_id = 0;
idx = 0;
while ((edge = MESH_Next_Edge(mesh,&idx))) {
gdim = ME_GEntDim(edge);
if (gdim != 1)
continue;
geid = ME_GEntID(edge);
if (geid) {
/* Has this model edge been encountered? If not, add it to list
of model edges */
for (i = 0, fnd = 0; i < ngedges; i++)
if (geids[i] == geid) {
fnd = 1;
break;
}
if (!fnd) {
if (geid > max_gedge_id)
max_gedge_id = geid;
if (ngealloc == ngedges) {
ngealloc *= 2;
geids = (int *) realloc(geids,ngealloc*sizeof(int));
gefaceids = (int **)realloc(gefaceids,ngealloc*sizeof(int *));
}
geids[ngedges] = geid;
efaces = ME_Faces(edge);
nef = List_Num_Entries(efaces);
gefaceids[ngedges] = (int *) malloc((1+nef)*sizeof(int));
ngef = 0;
for (i = 0; i < nef; i++) {
eface = List_Entry(efaces,i);
if (MF_GEntDim(eface) == 2) {
gefaceids[ngedges][1+ngef] = MF_GEntID(eface);
ngef++;
}
}
gefaceids[ngedges][0] = ngef;
ngedges++;
List_Delete(efaces);
}
}
}
/* Build new model edge information based on adjacent model region info */
/* NOTE: The following cases involve some repetition and can be
"cleverly" folded into a shorter piece of code, but then the
method by which the individual cases are handled gets a littled
obscured. So leave as is */
max_loc_gfids = 10;
loc_gfids = (int *) malloc(max_loc_gfids*sizeof(int));
idx = 0;
while ((edge = MESH_Next_Edge(mesh,&idx))) {
gdim = ME_GEntDim(edge);
geid = ME_GEntID(edge);
/* Edge has no classification? Assign classification info */
/* Edge classified as face or interior edge? Verify */
efaces = ME_Faces(edge);
nef = efaces ? List_Num_Entries(efaces) : 0;
if (!nef) {
/* Isolated edge (must be on model edge). Did we encounter such
an edge before? */
ME_Set_GEntDim(edge,1);
for (i = 0, fnd = 0; i < ngedges; i++) {
if (gefaceids[i][0] == 0) {
fnd = 1;
break;
}
}
if (fnd)
ME_Set_GEntID(edge,geids[i]);
else {
max_gedge_id++;
ME_Set_GEntID(edge,max_gedge_id);
if (ngealloc == ngedges) {
ngealloc *= 2;
geids = (int *) realloc(geids,ngealloc*sizeof(int));
gefaceids = (int **) realloc(gefaceids,ngealloc*sizeof(int *));
}
geids[ngedges] = max_gedge_id;
gefaceids[ngedges] = malloc(1*sizeof(int *));
gefaceids[ngedges][0] = 0;
}
continue; /* nothing else to do */
}
if (nef > max_loc_gfids) {
loc_gfids = (int *) realloc(loc_gfids,nef*sizeof(int));
max_loc_gfids = nef;
}
ngef = 0;
for (i = 0; i < nef; i++) {
eface = List_Entry(efaces,i);
if (MF_GEntDim(eface) == 2) {
loc_gfids[ngef] = MF_GEntID(eface);
ngef++;
}
}
switch (ngef) {
case 0:
/* Interior edge - we took care of the case of the isolated edge b4 */
ME_Set_GEntDim(edge,3);
eface = List_Entry(efaces,0);
ME_Set_GEntID(edge,MF_GEntID(eface));
break;
case 2:
if (loc_gfids[0] == loc_gfids[1]) {
if (gdim == 1) {
/* Looks like during face classification, this was tagged as
being a sharp edge. This means that it is a sharp edge on
the interior of a model face (same model face on both
sides) */
ME_Set_GEntDim(edge,1);
/* Check if such an edge was encountered before */
for (i = 0, fnd = 0; i < ngedges; i++) {
if (gefaceids[i][0] != 2)
continue;
if ((loc_gfids[0] == gefaceids[i][0]) &&
(gefaceids[i][0] == gefaceids[i][1])) {
fnd = 1;
break;
}
}
if (fnd)
ME_Set_GEntID(edge,geids[i]);
else {
max_gedge_id++;
ME_Set_GEntID(edge,max_gedge_id);
if (ngealloc == ngedges) {
ngealloc *= 2;
geids = (int *) realloc(geids,ngealloc*sizeof(int));
gefaceids = (int **) realloc(gefaceids,ngealloc*sizeof(int *));
}
geids[ngedges] = max_gedge_id;
gefaceids[ngedges] = malloc((1+ngef)*sizeof(int *));
gefaceids[ngedges][0] = ngef;
for (i = 0; i < ngef; i++)
gefaceids[ngedges][1+i] = loc_gfids[i];
ngedges++;
}
}
else {
/* edge must be on model face */
ME_Set_GEntDim(edge,2);
ME_Set_GEntID(edge,loc_gfids[0]);
}
}
else {
/* edge is on model edge between two faces */
ME_Set_GEntDim(edge,1);
/* Check if such an edge was encountered before */
for (i = 0, fnd = 0; i < ngedges; i++) {
if (gefaceids[i][0] != 2)
continue;
if (((loc_gfids[0] == gefaceids[i][1]) &&
(loc_gfids[1] == gefaceids[i][2])) ||
((loc_gfids[1] == gefaceids[i][1]) &&
(loc_gfids[0] == gefaceids[i][2]))) {
fnd = 1;
break;
}
}
if (fnd)
ME_Set_GEntID(edge,geids[i]);
else {
max_gedge_id++;
ME_Set_GEntID(edge,max_gedge_id);
if (ngealloc == ngedges) {
ngealloc *= 2;
geids = (int *) realloc(geids,ngealloc*sizeof(int));
gefaceids = (int **) realloc(gefaceids,ngealloc*sizeof(int *));
}
geids[ngedges] = max_gedge_id;
gefaceids[ngedges] = malloc((1+ngef)*sizeof(int *));
gefaceids[ngedges][0] = ngef;
for (i = 0; i < ngef; i++)
gefaceids[ngedges][1+i] = loc_gfids[i];
ngedges++;
}
}
break;
default:
/* if ngef is 1, edge is on model edge of non-manifold model
face
if ngef is >= 3, edge is on model edge at junction of
many model faces
*/
ME_Set_GEntDim(edge,1);
/* Check if a previously encountered model edge has this
combination of connected faces */
for (i = 0, fnd = 0; i < ngedges; i++) {
if (ngef != gefaceids[i][0])
continue; /* number of connected model faces is different */
/* see if all the model faces of the current edge can be found
in the i'th model edge's faces */
fnd2 = 0;
for (j = 0; j < ngef; j++) {
fnd2 = 0;
for (k = 0; k < ngef; k++) {
if (loc_gfids[j] == gefaceids[i][1+k]) {
fnd2 = 1;
break;
}
}
/* Did not find loc_gfid[j] in the list gefaceids[i] */
if (!fnd2)
break;
}
/* if a model face connected to this edge was not found in the
model face list of the previously processed, then the two model
edges are obviously different */
if (!fnd2)
continue;
else {
fnd = 1;
break;
}
}
if (fnd)
ME_Set_GEntID(edge,geids[i]);
else {
max_gedge_id++;
ME_Set_GEntID(edge,max_gedge_id);
if (ngealloc == ngedges) {
ngealloc *= 2;
geids = (int *) realloc(geids,ngealloc*sizeof(int));
gefaceids = (int **) realloc(gefaceids,ngealloc*sizeof(int *));
}
geids[ngedges] = max_gedge_id;
gefaceids[ngedges] = malloc((1+ngef)*sizeof(int *));
gefaceids[ngedges][0] = ngef;
for (i = 0; i < ngef; i++)
gefaceids[ngedges][1+i] = loc_gfids[i];
ngedges++;
}
break;
}
List_Delete(efaces); /* needed efaces in case 0 */
}
free(loc_gfids);
if (use_geometry == 1) {
#ifdef MSTK_USE_MARKERS
int processedmk = MSTK_GetMarker();
int submk = MSTK_GetMarker();
#else
MAttrib_ptr processedatt = MAttrib_New(mesh, "processed", INT, MEDGE);
MAttrib_ptr sublistatt = MAttrib_New(mesh, "sublist", INT, MEDGE);
#endif
/* Now assign model edge IDs based on whether a sharp set of edges
enclose a set of edges */
for (i = 0; i < ngedges; i++) {
/* Find all mesh edges with this model edge id */
geedges = List_New(10);
idx = 0;
while ((edge = MESH_Next_Edge(mesh,&idx))) {
if (ME_GEntDim(edge) == 1 && ME_GEntID(edge) == geids[i])
List_Add(geedges,edge);
}
/* Process edges of this list and subdivide them into subedges */
/* The way we do that is
1) we put an unprocessed edge from the original list in a subedge
list
2) we then add its neighboring edges to subedge list if they are
of the same color (same model edge id) and do not have a sharp
edge separating them from the current edge
3) we then process the next edge in the subedge list
4) we are done if we cannot find any more neighbors of edges in
the subedge list to add to the subedge list
5) we then repeat steps 1 through 4 until we are left with no
more edges to process from the original list
*/
nsub = 0;
idx = 0;
while ((edge = List_Next_Entry(geedges,&idx))) {
int emarked;
#ifdef MSTK_USE_MARKERS
emarked = MEnt_IsMarked(edge,processedmk);
#else
MEnt_Get_AttVal(edge, processedatt, &emarked, &rval, &pval);
#endif
if (emarked)
continue;
/* Found a edge in geedges that has not been processed */
#ifdef MSTK_USE_MARKERS
MEnt_Mark(edge,processedmk);
#else
MEnt_Set_AttVal(edge, processedatt, 1, 0.0, NULL);
#endif
subedges = List_New(10);
List_Add(subedges,edge);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(edge,submk);
#else
MEnt_Set_AttVal(edge, sublistatt, 1, 0.0, NULL);
#endif
idx2 = 0;
while ((subedge = List_Next_Entry(subedges,&idx2))) {
geid = ME_GEntID(subedge);
ev[0] = ME_Vertex(subedge,0);
ev[1] = ME_Vertex(subedge,1);
for (j = 0; j < 2; j++) {
vedges = MV_Edges(ev[j]);
nve = List_Num_Entries(vedges);
vbedges = List_New(nve); /* list of boundary edges cnctd 2 vert */
for (k = 0; k < nve; k++) {
adjedge = List_Entry(vedges,k);
if (ME_GEntDim(adjedge) == 1)
List_Add(vbedges,adjedge);
}
nbe = List_Num_Entries(vbedges);
if (nbe == 2) {
/* we might be on a model vertex or on a model edge */
adjedge = List_Entry(vbedges,0);
if (adjedge == subedge)
adjedge = List_Entry(vbedges,1);
geid2 = ME_GEntID(adjedge);
if (geid == geid2) {
/* The two edges are of the same ID. If the angle
between them is not sharp they can be classified as
being on the same subedge */
cosang = MEs_Angle(subedge,adjedge);
if (cosang <= COSSHARPANG) {
/* Add edge2 to subedge list unless its already there */
int adjemarked;
#ifdef MSTK_USE_MARKERS
adjemarked = MEnt_IsMarked(adjedge,submk);
#else
MEnt_Get_AttVal(adjedge, sublistatt, &adjemarked, &rval, &pval);
#endif
if (!adjemarked) {
List_Add(subedges,adjedge);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjedge,submk);
#else
MEnt_Set_AttVal(adjedge, sublistatt, 1, 0.0, NULL);
#endif
}
}
else {
/* The two edges make a very sharp angle. We will
consider the edge b/w them to be a model vertex */
/* Tag the edge as being on a model vertex (we don't
know the model vertex ID as yet) and continue */
MV_Set_GEntDim(ev[j],0);
MV_Set_GEntID(ev[j],0);
}
}
else {
/* we reached a model vertex */
/* Tag the edge as being on a model vertex (we don't know
the model vertex ID as yet) and continue */
MV_Set_GEntDim(ev[j],0);
MV_Set_GEntID(ev[j],0);
}
}
else {
/* we reached a a model vertex */
/* Tag the edge as being on a model vertex (we don't know
the model vertex ID as yet) and continue */
ME_Set_GEntDim(ev[j],0);
ME_Set_GEntID(ev[j],0);
}
List_Delete(vedges);
List_Delete(vbedges);
}
/* Finished processing all neighbors of the edge */
}
/* Now we have a list of edges which we believe constitutes a
model edge by itself. If this is the first subedge (which
means it could also be the entire model edge originally
considered), leave the model edge tag as it is. If not,
assign the edges in the subedge a new model edge ID */
if (nsub != 0) {
max_gedge_id++;
idx2 = 0;
while ((subedge = List_Next_Entry(subedges,&idx2)))
ME_Set_GEntID(subedge,max_gedge_id);
}
nsub++;
/* Done with this subedge */
#ifdef MSTK_USE_MARKERS
idx2 = 0;
while ((subedge = List_Next_Entry(subedges,&idx2))) {
MEnt_Mark(subedge,processedmk);
MEnt_Unmark(subedge,submk);
}
#else
idx2 = 0;
while ((subedge = List_Next_Entry(subedges,&idx2))) {
MEnt_Set_AttVal(subedge, processedatt, 1, 0.0, NULL);
MEnt_Set_AttVal(subedge, sublistatt, 0, 0.0, NULL);
}
#endif
List_Delete(subedges);
}
#ifdef MSTK_USE_MARKERS
List_Unmark(geedges,processedmk);
#else
idx2 = 0;
while ((edge = List_Next_Entry(geedges, &idx2)))
MEnt_Set_AttVal(edge, processedatt, 1, 0.0, NULL);
#endif
List_Delete(geedges);
}
#ifdef MSTK_USE_MARKERS
MSTK_FreeMarker(processedmk);
MSTK_FreeMarker(submk);
#else
MAttrib_Delete(processedatt);
MAttrib_Delete(sublistatt);
#endif
} /* if use_geometry == 1 */
free(geids);
for (i = 0; i < ngedges; i++)
free(gefaceids[i]);
free(gefaceids);
return 1;
}
int MESH_ConcatSubMesh_Face(Mesh_ptr mesh, int num, Mesh_ptr *submeshes) {
int nfv, nfe, i, j, k, ival;
MVertex_ptr mv, new_mv, sub_mv;
MEdge_ptr me, new_me, sub_me;
MFace_ptr new_mf, sub_mf;
List_ptr mfverts, mfedges;
int add_face, idx, global_id, iloc, *loc;
double coor[3], rval;
void *pval;
Mesh_ptr submesh;
List_ptr parbndry_verts = List_New(10);
List_ptr parbndry_edges = List_New(10);
MEdge_ptr *fedges = (MEdge_ptr *) malloc(MAXPV2*sizeof(MEdge_ptr));
int *fedirs = (int *) malloc(MAXPV2*sizeof(int));
MAttrib_ptr parbndryatt = MAttrib_New(mesh, "on_parbndry", INT, MVERTEX);
/* collect edges and vertices on the partition boundary */
int num_parbndry_edges = 0;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
if (ME_PType(me) != PINTERIOR) {
List_Add(parbndry_edges,me);
num_parbndry_edges++;
}
int num_parbndry_verts = 0;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
if (MV_PType(mv) != PINTERIOR) {
List_Add(parbndry_verts,mv);
MEnt_Set_AttVal(mv, parbndryatt, 1, 0.0, NULL);
num_parbndry_verts++;
}
/* sort based on global ID */
List_Sort(parbndry_edges,num_parbndry_edges,sizeof(MEdge_ptr),compareGlobalID);
List_Sort(parbndry_verts,num_parbndry_verts,sizeof(MVertex_ptr),compareGlobalID);
int *parbndry_vert_gids = (int *) malloc(num_parbndry_verts*sizeof(int));
int *parbndry_edge_gids = (int *) malloc(num_parbndry_edges*sizeof(int));
/* store them in array for binary search */
for (i = 0; i < num_parbndry_edges; i++) {
me = List_Entry(parbndry_edges,i);
parbndry_edge_gids[i] = ME_GlobalID(me);
}
for (i = 0; i < num_parbndry_verts; i++) {
mv = List_Entry(parbndry_verts,i);
parbndry_vert_gids[i] = MV_GlobalID(mv);
}
/* Make list of new edges and vertices which will be updated
with each mesh that is concatenated */
int max_vnew = 0, max_enew = 0;
for (i = 0; i < num; i++) {
max_vnew += MESH_Num_Vertices(submeshes[i]);
max_enew += MESH_Num_Edges(submeshes[i]);
}
int num_new_verts = 0, num_new_edges = 0;
int *new_vert_gids = (int *) malloc(max_vnew*sizeof(int));
int *new_edge_gids = (int *) malloc(max_enew*sizeof(int));
List_ptr new_verts = List_New(max_vnew);
List_ptr new_edges = List_New(max_enew);
/* Now process each mesh and add a layer of ghost elements from
each of them to the main partition */
for (i = 0; i < num; i++) {
submesh = submeshes[i];
MAttrib_ptr vidatt = MAttrib_New(submesh, "tempvid", POINTER, MVERTEX);
MAttrib_ptr eidatt = MAttrib_New(submesh, "tempeid", POINTER, MEDGE);
idx = 0;
while ((sub_mf = MESH_Next_Face(submesh, &idx))) {
add_face = 0;
/* Find matching vertices between the submesh and main mesh */
mfverts = MF_Vertices(sub_mf,1,0);
nfv = List_Num_Entries(mfverts);
for (j = 0; j < nfv; j++) {
sub_mv = List_Entry(mfverts,j);
/* Does the vertex have a known counterpart on the partition
* boundary of the main mesh? */
MEnt_Get_AttVal(sub_mv, vidatt, &ival, &rval, &mv);
if (mv) {
int on_parbndry=0;
MEnt_Get_AttVal(mv, parbndryatt, &on_parbndry, &rval, &pval);
if (on_parbndry)
add_face = 1;
} else {
/* Does the global ID of this vertex of the sub mesh face
* match the global ID of a partition boundary vertex in
* the main mesh? */
global_id = MV_GlobalID(sub_mv);
loc = (int *) bsearch(&global_id, parbndry_vert_gids, num_parbndry_verts, sizeof(int),
compareINT);
if (loc) { /* found a match */
add_face = 1;
iloc = loc - parbndry_vert_gids;
mv = List_Entry(parbndry_verts,iloc);
/* here set the ghost vertex property, only necessary when the input submeshes are not consistent */
if (MV_PType(mv) == PGHOST && MV_PType(sub_mv) != PGHOST) {
MV_Set_GEntDim(mv,MV_GEntDim(sub_mv));
MV_Set_GEntID(mv,MV_GEntID(sub_mv));
}
MEnt_Set_AttVal(sub_mv, vidatt, 0, 0.0, mv);
}
}
}
List_Delete(mfverts);
/* Find matching edges between the submesh and main mesh */
mfedges = MF_Edges(sub_mf,1,0);
nfe = List_Num_Entries(mfedges);
for (j = 0; j < nfe; j++) {
sub_me = List_Entry(mfedges,j);
/* Does the edge have a known counterpart on the partition
* boundary of the main mesh */
MEnt_Get_AttVal(sub_me, eidatt, &ival, &rval, &me);
if (!me) {
/* Does the global ID of this edge of the sub mesh face
* match the global ID of a partition boundary edge in the
* main mesh? */
global_id = ME_GlobalID(sub_me);
loc = (int *) bsearch(&global_id, parbndry_edge_gids, num_parbndry_edges, sizeof(int),
compareINT);
if (loc) {
iloc = loc - parbndry_edge_gids;
me = List_Entry(parbndry_edges,iloc);
/* here set the ghost edge property, only necessary when the input submeshes are not consistent */
if (ME_PType(me) == PGHOST && ME_PType(sub_me) != PGHOST) {
ME_Set_GEntDim(me,ME_GEntDim(sub_me));
ME_Set_GEntID(me,ME_GEntID(sub_me));
}
MEnt_Set_AttVal(sub_me, eidatt, 0, 0.0, me);
}
}
}
if (!add_face) {
List_Delete(mfedges);
continue;
}
new_mf = MF_New(mesh); /* add face */
MF_Set_GEntDim(new_mf,MF_GEntDim(sub_mf));
MF_Set_GEntID(new_mf,MF_GEntID(sub_mf));
MF_Set_PType(new_mf,PGHOST);
MF_Set_MasterParID(new_mf,MF_MasterParID(sub_mf));
MF_Set_GlobalID(new_mf,MF_GlobalID(sub_mf));
nfe = List_Num_Entries(mfedges);
for (j = 0; j < nfe; j++) {
sub_me = List_Entry(mfedges,j);
global_id = ME_GlobalID(sub_me);
fedirs[j] = MF_EdgeDir_i(sub_mf,j) == 1 ? 1 : 0;
new_me = NULL;
MEnt_Get_AttVal(sub_me, eidatt, &ival, &rval, &new_me);
if (!new_me) {
/* search in the ghost layer if another edge with
* this global ID has been added */
loc = (int *) bsearch(&global_id, new_edge_gids, num_new_edges,
sizeof(int), compareINT);
if (loc) {
iloc = loc - new_edge_gids;
new_me = List_Entry(new_edges, iloc);
MEnt_Set_AttVal(sub_me, eidatt, 0, 0.0, new_me);
}
}
if (new_me) {
if (MV_GlobalID(ME_Vertex(new_me,0)) != MV_GlobalID(ME_Vertex(sub_me,0)))
fedirs[j] = 1 - fedirs[j]; /* if the edge dir is not the same, reverse the edge dir */
} else { /* add a new edge to main mesh */
new_me = ME_New(mesh);
ME_Set_GEntDim(new_me,ME_GEntDim(sub_me));
ME_Set_GEntID(new_me,ME_GEntID(sub_me));
ME_Set_PType(new_me,PGHOST);
ME_Set_MasterParID(new_me,ME_MasterParID(sub_me));
ME_Set_GlobalID(new_me,ME_GlobalID(sub_me));
MEnt_Set_AttVal(sub_me, eidatt, 0, 0.0, new_me);
List_Add(new_edges, new_me);
for (k = 0; k < 2; k++) {
sub_mv = ME_Vertex(sub_me,k);
global_id = MV_GlobalID(sub_mv);
new_mv = NULL;
MEnt_Get_AttVal(sub_mv, vidatt, &ival, &rval, &new_mv);
if (!new_mv) {
/* search in the ghost layer if another vertex with
* this global ID has been added */
loc = (int *) bsearch(&global_id, new_vert_gids, num_new_verts,
sizeof(int), compareINT);
if (loc) {
iloc = loc - new_vert_gids;
new_mv = List_Entry(new_verts, iloc);
MEnt_Set_AttVal(sub_mv, vidatt, 0, 0.0, new_mv);
}
}
if (!new_mv) { /* add a new vertex to main mesh */
new_mv = MV_New(mesh);
MV_Set_GEntDim(new_mv,MV_GEntDim(sub_mv));
MV_Set_GEntID(new_mv,MV_GEntID(sub_mv));
MV_Set_PType(new_mv,PGHOST);
MV_Set_MasterParID(new_mv,MV_MasterParID(sub_mv));
MV_Set_GlobalID(new_mv,MV_GlobalID(sub_mv));
MV_Coords(sub_mv,coor);
MV_Set_Coords(new_mv,coor);
MEnt_Set_AttVal(sub_mv, vidatt, 0, 0.0, new_mv);
List_Add(new_verts, new_mv);
}
ME_Set_Vertex(new_me,k,new_mv); /* set edge-vertex */
}
}
fedges[j] = new_me;
}
MF_Set_Edges(new_mf,nfe,fedges,fedirs); /* set face-edge */
List_Delete(mfedges);
}
idx = 0;
while ((sub_mv = MESH_Next_Vertex(submesh, &idx)))
MEnt_Rem_AttVal(sub_mv, vidatt);
MAttrib_Delete(vidatt);
idx = 0;
while ((sub_me = MESH_Next_Edge(submesh, &idx)))
MEnt_Rem_AttVal(sub_me, eidatt);
MAttrib_Delete(eidatt);
/* Sort the added entity lists by GlobalID */
num_new_edges = List_Num_Entries(new_edges);
List_Sort(new_edges, num_new_edges, sizeof(MEdge_ptr), compareGlobalID);
for (j = 0; j < num_new_edges; j++)
new_edge_gids[j] = ME_GlobalID(List_Entry(new_edges, j));
num_new_verts = List_Num_Entries(new_verts);
List_Sort(new_verts, num_new_verts, sizeof(MVertex_ptr), compareGlobalID);
for (j = 0; j < num_new_verts; j++)
new_vert_gids[j] = MV_GlobalID(List_Entry(new_verts, j));
}
idx = 0;
while ((mv = List_Next_Entry(parbndry_verts, &idx)))
MEnt_Rem_AttVal(mv, parbndryatt);
MAttrib_Delete(parbndryatt);
List_Delete(parbndry_edges);
List_Delete(parbndry_verts);
List_Delete(new_edges);
List_Delete(new_verts);
free(parbndry_vert_gids);
free(parbndry_edge_gids);
free(new_vert_gids);
free(new_edge_gids);
free(fedges);
free(fedirs);
return 1;
}
void MESH_Renumber(Mesh_ptr mesh, int renum_type, MType mtype) {
MVertex_ptr mv, v0=NULL;
MEdge_ptr me, e0=NULL;
MFace_ptr mf, f0=NULL;
MRegion_ptr mr, r0=NULL;
int idx, idx2, idx3;
int i, j;
int done;
MAttrib_ptr vidatt;
List_ptr vlist;
double xyz[3];
double rval;
int bandwidth, maxbandwidth1, maxbandwidth2;
double avebandwidth1, avebandwidth2;
void *pval;
if (renum_type == 0) {
if (mtype == MVERTEX || mtype == MALLTYPE) {
int nv = 0;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
MV_Set_ID(mv,++nv);
}
if (mtype == MEDGE || mtype == MALLTYPE) {
int ne = 0;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
ME_Set_ID(me,++ne);
}
if (mtype == MFACE || mtype == MALLTYPE) {
int nf = 0;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
MF_Set_ID(mf,++nf);
}
if (mtype == MREGION || mtype == MALLTYPE) {
int nr = 0;
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
MR_Set_ID(mr,++nr);
}
}
else if (renum_type == 1) {
double minx, miny, minz;
int minid, maxid;
int *nadj, *newmap, *adj, *offset, nconn;
int nalloc, depth, maxwidth;
#ifdef MSTK_USE_MARKERS
int mkid = MSTK_GetMarker();
#else
MAttrib_ptr mkatt = MAttrib_New(mesh, "mkatt", INT, MALLTYPE);
#endif
if (mtype == MVERTEX || mtype == MALLTYPE) {
int nv = MESH_Num_Vertices(mesh);
/* Compute a graph of vertex connections across elements (faces
for surface meshes, regions for solid meshes */
/* Start with the vertex in the lower leftmost corner */
minx = miny = minz = 1.0e+12;
v0 = NULL;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
MV_Coords(mv,xyz);
if (xyz[0] <= minx && xyz[1] <= miny && xyz[2] <= minz) {
minx = xyz[0];
miny = xyz[1];
minz = xyz[2];
v0 = mv;
}
}
nadj = (int *) malloc(nv*sizeof(int));
nalloc = nv*5;
adj = (int *) malloc(nalloc*sizeof(int));
if (!MESH_Num_Regions(mesh)) {
int nentries = 0;
i = 0;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
List_ptr vfaces, adjvlist;
MFace_ptr vf;
MVertex_ptr adjv;
adjvlist = List_New(0);
vfaces = MV_Faces(mv);
idx2 = 0;
while ((vf = List_Next_Entry(vfaces,&idx2))) {
List_ptr fverts = MF_Vertices(vf,1,0);
idx3 = 0;
while ((adjv = List_Next_Entry(fverts,&idx3))) {
if (adjv != mv) {
int vmarked;
#ifdef MSTK_USE_MARKERS
vmarked = MEnt_IsMarked(adjv,mkid);
#else
MEnt_Get_AttVal(adjv, mkatt, &vmarked, &rval, &pval);
#endif
if (!vmarked) {
List_Add(adjvlist,adjv);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjv,mkid);
#else
MEnt_Set_AttVal(adjv, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(fverts);
}
List_Delete(vfaces);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjvlist,mkid);
#endif
nadj[i] = List_Num_Entries(adjvlist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adjv = List_Next_Entry(adjvlist,&idx2)))
adj[nentries++] = MV_ID(adjv)-1;
List_Delete(adjvlist);
i++;
}
}
else {
int nentries = 0;
i = 0;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
List_ptr vregions, adjvlist;
MRegion_ptr vr;
MVertex_ptr adjv;
adjvlist = List_New(0);
vregions = MV_Regions(mv);
idx2 = 0;
while ((vr = List_Next_Entry(vregions,&idx2))) {
List_ptr rverts = MR_Vertices(vr);
idx3 = 0;
while ((adjv = List_Next_Entry(rverts,&idx3))) {
if (adjv != mv) {
int vmarked;
#ifdef MSTK_USE_MARKERS
vmarked = MEnt_IsMarked(adjv,mkid);
#else
MEnt_Get_AttVal(adjv, mkatt, &vmarked, &rval, &pval);
#endif
if (!vmarked) {
List_Add(adjvlist,adjv);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjv,mkid);
#else
MEnt_Set_AttVal(adjv, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(rverts);
}
List_Delete(vregions);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjvlist,mkid);
#endif
nadj[i] = List_Num_Entries(adjvlist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adjv = List_Next_Entry(adjvlist,&idx2)))
adj[nentries++] = MV_ID(adjv)-1;
List_Delete(adjvlist);
i++;
}
}
/* Compute offsets into adj array */
offset = (int *) malloc(nv*sizeof(int));
offset[0] = 0;
for (i = 1; i < nv; i++)
offset[i] = offset[i-1] + nadj[i-1];
/* Compute maximum bandwidth before renumbering */
maxbandwidth1 = 0;
avebandwidth1 = 0;
for (i = 0; i < nv; i++) {
int off = offset[i];
int curid = i;
for (j = 0; j < nadj[i]; j++) {
int adjid = adj[off+j];
int diff = abs(adjid-curid);
maxbandwidth1 = (diff > maxbandwidth1) ? diff : maxbandwidth1;
avebandwidth1 += diff;
nconn++;
}
}
nconn = offset[nv-1]+nadj[nv-1];
avebandwidth1 /= nconn;
fprintf(stderr,
"Ave vertex ID difference on elements before renumbering: %-lf\n",
avebandwidth1);
fprintf(stderr,
"Max vertex ID difference on elements before renumbering: %-d\n",
maxbandwidth1);
fprintf(stderr,"\n");
newmap = (int *) malloc(nv*sizeof(int));
Graph_Renumber_GPS(nv, MV_ID(v0)-1, nadj, adj, newmap, &depth, &maxwidth);
/* Compute bandwidth after renumbering */
maxbandwidth2 = 0;
avebandwidth2 = 0;
for (i = 0; i < nv; i++) {
int off = offset[i];
int curid = newmap[i];
for (j = 0; j < nadj[i]; j++) {
int adjid = newmap[adj[off+j]];
int diff = abs(adjid-curid);
maxbandwidth2 = (diff > maxbandwidth2) ? diff : maxbandwidth2;
avebandwidth2 += diff;
nconn++;
}
}
nconn = offset[nv-1]+nadj[nv-1];
avebandwidth2 /= nconn;
if (maxbandwidth2 < maxbandwidth1 && avebandwidth2 < avebandwidth1) {
/* Renumber */
idx = 0; i = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
MV_Set_ID(mv,newmap[i]+1);
i++;
}
fprintf(stderr,
"Ave vertex ID difference on elements after renumbering: %-lf\n",
avebandwidth2);
fprintf(stderr,
"Max vertex ID difference on elements after renumbering: %-d\n",
maxbandwidth2);
}
else {
nv = 0;
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx)))
MV_Set_ID(mv,++nv);
fprintf(stderr,"Bandwidth did not improve. Keeping old numbering with gaps eliminated\n");
}
fprintf(stderr,"\n\n\n");
free(nadj);
free(adj);
free(offset);
free(newmap);
}
/* Reorder edges according to a breadth first algorithm applied to
edges (differs from RCM in that it does not add adjacent nodes
in ascending order of their valence) */
if (mtype == MEDGE || mtype == MALLTYPE) {
int ne = MESH_Num_Edges(mesh);
MEdge_ptr ve;
List_ptr elist;
/************************* renumbering code ****************************/
ne = MESH_Num_Edges(mesh);
if (mtype == MALLTYPE) {
/* RCM algorithm already applied on the vertices. Use an edge
connected to the starting vertex as the first edge */
List_ptr vedges = MV_Edges(v0);
e0 = List_Entry(vedges,0);
List_Delete(vedges);
}
else {
/* Find the edge whose mid point is a minimum point */
minx = miny = minz = 1.0e+12;
e0 = NULL;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
double exyz[2][3];
MV_Coords(ME_Vertex(me,0),exyz[0]);
MV_Coords(ME_Vertex(me,1),exyz[1]);
xyz[0] = (exyz[0][0]+exyz[1][0])/2.0;
xyz[1] = (exyz[0][1]+exyz[1][1])/2.0;
xyz[2] = (exyz[0][2]+exyz[1][2])/2.0;
if (xyz[0] < minx && xyz[1] < miny && xyz[2] < minz) {
minx = xyz[0];
miny = xyz[1];
minz = xyz[2];
e0 = me;
}
}
}
nadj = (int *) malloc(ne*sizeof(int));
nalloc = ne*5;
adj = (int *) malloc(nalloc*sizeof(int));
if (!MESH_Num_Regions(mesh)) {
int nentries = 0;
i = 0;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
List_ptr efaces, adjelist;
MFace_ptr ef;
MEdge_ptr adje;
adjelist = List_New(0);
efaces = ME_Faces(me);
idx2 = 0;
while ((ef = List_Next_Entry(efaces,&idx2))) {
List_ptr fedges = MF_Edges(ef,1,0);
idx3 = 0;
while ((adje = List_Next_Entry(fedges,&idx3))) {
if (adje != me) {
int emarked;
#ifdef MSTK_USE_MARKERS
emarked = MEnt_IsMarked(adje,mkid);
#else
MEnt_Get_AttVal(adje, mkatt, &emarked, &rval, &pval);
#endif
if (!emarked) {
List_Add(adjelist,adje);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adje,mkid);
#else
MEnt_Set_AttVal(adje, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(fedges);
}
List_Delete(efaces);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjelist,mkid);
#endif
nadj[i] = List_Num_Entries(adjelist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adje = List_Next_Entry(adjelist,&idx2)))
adj[nentries++] = ME_ID(adje)-1;
List_Delete(adjelist);
i++;
}
}
else {
int nentries = 0;
i = 0;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
List_ptr eregions, adjelist;
MRegion_ptr er;
MEdge_ptr adje;
adjelist = List_New(0);
eregions = ME_Regions(me);
idx2 = 0;
while ((er = List_Next_Entry(eregions,&idx2))) {
List_ptr redges = MR_Edges(er);
idx3 = 0;
while ((adje = List_Next_Entry(redges,&idx3))) {
if (adje != me) {
int emarked;
#ifdef MSTK_USE_MARKERS
emarked = MEnt_IsMarked(adje,mkid);
#else
MEnt_Get_AttVal(adje, mkatt, &emarked, &rval, &pval);
#endif
if (!emarked) {
List_Add(adjelist,adje);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adje,mkid);
#else
MEnt_Set_AttVal(adje, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(redges);
}
List_Delete(eregions);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjelist,mkid);
#endif
nadj[i] = List_Num_Entries(adjelist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adje = List_Next_Entry(adjelist,&idx2)))
adj[nentries++] = ME_ID(adje)-1;
List_Delete(adjelist);
i++;
}
}
/* Compute offsets into adj array */
offset = (int *) malloc(ne*sizeof(int));
offset[0] = 0;
for (i = 1; i < ne; i++)
offset[i] = offset[i-1] + nadj[i-1];
/* Compute maximum bandwidth before renumbering */
maxbandwidth1 = 0;
avebandwidth1 = 0;
for (i = 0; i < ne; i++) {
int off = offset[i];
int curid = i;
for (j = 0; j < nadj[i]; j++) {
int adjid = adj[off+j];
int diff = abs(adjid-curid);
maxbandwidth1 = (diff > maxbandwidth1) ? diff : maxbandwidth1;
avebandwidth1 += diff;
nconn++;
}
}
nconn = offset[ne-1]+nadj[ne-1];
avebandwidth1 /= nconn;
fprintf(stderr,
"Ave edge ID difference on elements before renumbering: %-lf\n",
avebandwidth1);
fprintf(stderr,
"Max edge ID difference on elements before renumbering: %-d\n",
maxbandwidth1);
fprintf(stderr,"\n");
/* Call Graph Renumbering algorithm */
newmap = (int *) malloc(ne*sizeof(int));
Graph_Renumber_GPS(ne, ME_ID(e0)-1, nadj, adj, newmap, &depth, &maxwidth);
/* Compute bandwidth after renumbering */
maxbandwidth2 = 0;
avebandwidth2 = 0;
for (i = 0; i < ne; i++) {
int off = offset[i];
int curid = newmap[i];
for (j = 0; j < nadj[i]; j++) {
int adjid = newmap[adj[off+j]];
int diff = abs(adjid-curid);
maxbandwidth2 = (diff > maxbandwidth2) ? diff : maxbandwidth2;
avebandwidth2 += diff;
nconn++;
}
}
nconn = offset[ne-1]+nadj[ne-1];
avebandwidth2 /= nconn;
if (maxbandwidth2 < maxbandwidth1 && avebandwidth2 < avebandwidth1) {
/* Renumber */
idx = 0; i = 0;
while ((me = MESH_Next_Edge(mesh,&idx))) {
ME_Set_ID(me,newmap[i]+1);
i++;
}
fprintf(stderr,
"Ave edge ID difference on elements after renumbering: %-lf\n",
avebandwidth2);
fprintf(stderr,
"Max edge ID difference on elements after renumbering: %-d\n",
maxbandwidth2);
}
else {
ne = 0;
idx = 0;
while ((me = MESH_Next_Edge(mesh,&idx)))
ME_Set_ID(me,++ne);
fprintf(stderr,"Bandwidth did not improve. Keeping old numbering with gaps eliminated\n");
}
fprintf(stderr,"\n\n\n");
free(nadj);
free(adj);
free(offset);
free(newmap);
}
/* Reorder faces according to a breadth first algorithm applied to
edges (differs from RCM in that it does not add adjacent graph nodes
in ascending order of their valence) */
if (mtype == MFACE || mtype == MALLTYPE) {
int nf = MESH_Num_Faces(mesh);
if (mtype == MALLTYPE) {
/* RCM algorithm already applied on the vertices. Use an edge
connected to the starting vertex as the first edge */
List_ptr vfaces = MV_Faces(v0);
f0 = List_Entry(vfaces,0);
List_Delete(vfaces);
}
else {
/* Find the face whose mid point is a minimum point */
minx = miny = minz = 1.0e+12;
f0 = NULL;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
double fxyz[MAXPV2][3];
int nfv;
MF_Coords(mf,&nfv,fxyz);
xyz[0] = fxyz[0][0];
xyz[1] = fxyz[0][1];
xyz[2] = fxyz[0][2];
for (i = 1; i < nfv; i++) {
xyz[0] += fxyz[i][0];
xyz[1] += fxyz[i][1];
xyz[2] += fxyz[i][2];
}
xyz[0] /= nfv; xyz[1] /= nfv; xyz[2] /= nfv;
if (xyz[0] < minx && xyz[1] < miny && xyz[2] < minz) {
minx = xyz[0];
miny = xyz[1];
minz = xyz[2];
f0 = mf;
}
}
}
nadj = (int *) malloc(nf*sizeof(int));
nalloc = nf*5;
adj = (int *) malloc(nalloc*sizeof(int));
if (!MESH_Num_Regions(mesh)) {
int nentries = 0;
i = 0;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
List_ptr vfaces, fverts, adjflist;
MFace_ptr vf, adjf;
MVertex_ptr fv;
adjflist = List_New(0);
fverts = MF_Vertices(mf,1,0);
idx2 = 0;
while ((fv = List_Next_Entry(fverts,&idx2))) {
List_ptr vfaces = MV_Faces(fv);
idx3 = 0;
while ((adjf = List_Next_Entry(vfaces,&idx3))) {
if (adjf != mf) {
int fmarked;
#ifdef MSTK_USE_MARKERS
fmarked = MEnt_IsMarked(adjf,mkid);
#else
MEnt_Get_AttVal(adjf, mkatt, &fmarked, &rval, &pval);
#endif
if (fmarked) {
List_Add(adjflist,adjf);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjf,mkid);
#else
MEnt_Set_AttVal(adjf, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(vfaces);
}
List_Delete(fverts);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjflist,mkid);
#endif
nadj[i] = List_Num_Entries(adjflist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adjf = List_Next_Entry(adjflist,&idx2)))
adj[nentries++] = MF_ID(adjf)-1;
List_Delete(adjflist);
i++;
}
}
else {
int nentries = 0;
i = 0;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
List_ptr fregions, adjflist;
MRegion_ptr fr;
MFace_ptr adjf;
adjflist = List_New(0);
fregions = MF_Regions(mf);
idx2 = 0;
while ((fr = List_Next_Entry(fregions,&idx2))) {
List_ptr rfaces = MR_Faces(fr);
idx3 = 0;
while ((adjf = List_Next_Entry(rfaces,&idx3))) {
if (adjf != mf) {
int fmarked;
#ifdef MSTK_USE_MARKERS
fmarked = MEnt_IsMarked(adjf,mkid);
#else
MEnt_Get_AttVal(adjf, mkatt, &fmarked, &rval, &pval);
#endif
if (fmarked) {
List_Add(adjflist,adjf);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjf,mkid);
#else
MEnt_Set_AttVal(adjf, mkatt, 1, 0.0, NULL);
#endif
}
}
}
List_Delete(rfaces);
}
List_Delete(fregions);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjflist,mkid);
#endif
nadj[i] = List_Num_Entries(adjflist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adjf = List_Next_Entry(adjflist,&idx2)))
adj[nentries++] = MF_ID(adjf)-1;
List_Delete(adjflist);
i++;
}
}
/* Compute offsets into adj array */
offset = (int *) malloc(nf*sizeof(int));
offset[0] = 0;
for (i = 1; i < nf; i++)
offset[i] = offset[i-1] + nadj[i-1];
/* Compute maximum bandwidth before renumbering */
maxbandwidth1 = 0;
avebandwidth1 = 0;
for (i = 0; i < nf; i++) {
int off = offset[i];
int curid = i;
for (j = 0; j < nadj[i]; j++) {
int adjid = adj[off+j];
int diff = abs(adjid-curid);
maxbandwidth1 = (diff > maxbandwidth1) ? diff : maxbandwidth1;
avebandwidth1 += diff;
nconn++;
}
}
nconn = offset[nf-1]+nadj[nf-1];
avebandwidth1 /= nconn;
if (MESH_Num_Regions(mesh)) {
fprintf(stderr,
"Ave face ID difference on elements before renumbering: %-lf\n",
avebandwidth1);
fprintf(stderr,
"Max face ID difference on elements before renumbering: %-d\n",
maxbandwidth1);
}
else {
fprintf(stderr,
"Ave face ID difference before renumbering: %-lf\n",
avebandwidth1);
fprintf(stderr,
"Max face ID difference before renumbering: %-d\n",
maxbandwidth1);
}
fprintf(stderr,"\n");
/* Call Graph Renumbering algorithm */
newmap = (int *) malloc(nf*sizeof(int));
Graph_Renumber_GPS(nf, MF_ID(f0)-1, nadj, adj, newmap, &depth, &maxwidth);
/* Compute bandwidth after renumbering */
maxbandwidth2 = 0;
avebandwidth2 = 0;
for (i = 0; i < nf; i++) {
int off = offset[i];
int curid = newmap[i];
for (j = 0; j < nadj[i]; j++) {
int adjid = newmap[adj[off+j]];
int diff = abs(adjid-curid);
maxbandwidth2 = (diff > maxbandwidth2) ? diff : maxbandwidth2;
avebandwidth2 += diff;
nconn++;
}
}
nconn = offset[nf-1]+nadj[nf-1];
avebandwidth2 /= nconn;
if (maxbandwidth2 < maxbandwidth1 && avebandwidth2 < avebandwidth1) {
/* Renumber */
idx = 0; i = 0;
while ((mf = MESH_Next_Face(mesh,&idx))) {
MF_Set_ID(mf,newmap[i]+1);
i++;
}
if (MESH_Num_Regions(mesh)) {
fprintf(stderr,
"Ave face ID difference on elements after renumbering: %-lf\n",
avebandwidth2);
fprintf(stderr,
"Max face ID difference on elements after renumbering: %-d\n",
maxbandwidth2);
}
else {
fprintf(stderr,
"Ave face ID difference after renumbering: %-lf\n",
avebandwidth2);
fprintf(stderr,
"Max face ID difference after renumbering: %-d\n",
maxbandwidth2);
}
}
else {
nf = 0;
idx = 0;
while ((mf = MESH_Next_Face(mesh,&idx)))
MF_Set_ID(mf,++nf);
fprintf(stderr,"Bandwidth did not improve. Keeping old numbering with gaps eliminated\n");
}
fprintf(stderr,"\n\n\n");
free(nadj);
free(adj);
free(offset);
free(newmap);
}
if (mtype == MREGION || mtype == MALLTYPE) {
int nr = MESH_Num_Regions(mesh);
if (nr) {
if (mtype == MALLTYPE) {
/* Renumbering algorithm already applied on the vertices. Use
a region connected to the starting vertex as the first
region */
List_ptr vregions = MV_Regions(v0);
r0 = List_Entry(vregions,0);
List_Delete(vregions);
}
else {
/* Find the region whose center point is a minimum point */
minx = miny = minz = 1.0e+12;
r0 = NULL;
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
double rxyz[MAXPV3][3];
int nrv;
MR_Coords(mr,&nrv,rxyz);
xyz[0] = rxyz[0][0];
xyz[1] = rxyz[0][1];
xyz[2] = rxyz[0][2];
for (i = 1; i < nrv; i++) {
xyz[0] += rxyz[i][0];
xyz[1] += rxyz[i][1];
xyz[2] += rxyz[i][2];
}
xyz[0] /= nrv; xyz[1] /= nrv; xyz[2] /= nrv;
if (xyz[0] < minx && xyz[1] < miny && xyz[2] < minz) {
minx = xyz[0];
miny = xyz[1];
minz = xyz[2];
r0 = mr;
}
}
}
nadj = (int *) malloc(nr*sizeof(int));
nalloc = nr*5;
adj = (int *) malloc(nalloc*sizeof(int));
int nentries = 0;
i = 0;
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
List_ptr vregions, rverts, adjrlist;
MRegion_ptr vr, adjr;
MVertex_ptr rv;
adjrlist = List_New(0);
rverts = MR_Vertices(mr);
idx2 = 0;
while ((rv = List_Next_Entry(rverts,&idx2))) {
List_ptr vregions = MV_Regions(rv);
idx3 = 0;
while ((adjr = List_Next_Entry(vregions,&idx3))) {
if (adjr != mr) {
int rmarked;
#ifdef MSTK_USE_MARKERS
rmarked = MEnt_IsMarked(adjr,mkid);
#else
MEnt_Get_AttVal(adjr, mkatt, &rmarked, &rval, &pval);
#endif
List_Add(adjrlist,adjr);
#ifdef MSTK_USE_MARKERS
MEnt_Mark(adjr,mkid);
#else
MEnt_Set_AttVal(adjr, mkatt, 1, 0.0, NULL);
#endif
}
}
List_Delete(vregions);
}
List_Delete(rverts);
#ifdef MSTK_USE_MARKERS
List_Unmark(adjrlist,mkid);
#endif
nadj[i] = List_Num_Entries(adjrlist);
if (nentries+nadj[i] > nalloc) {
nalloc *= 2;
adj = (int *) realloc(adj,nalloc*sizeof(int));
}
idx2 = 0;
while ((adjr = List_Next_Entry(adjrlist,&idx2)))
adj[nentries++] = MR_ID(adjr)-1;
List_Delete(adjrlist);
i++;
}
/* Compute offsets into adj array */
offset = (int *) malloc(nr*sizeof(int));
offset[0] = 0;
for (i = 1; i < nr; i++)
offset[i] = offset[i-1] + nadj[i-1];
/* Compute maximum bandwidth before renumbering */
maxbandwidth1 = 0;
avebandwidth1 = 0;
for (i = 0; i < nr; i++) {
int off = offset[i];
int curid = i;
for (j = 0; j < nadj[i]; j++) {
int adjid = adj[off+j];
int diff = abs(adjid-curid);
maxbandwidth1 = (diff > maxbandwidth1) ? diff : maxbandwidth1;
avebandwidth1 += diff;
nconn++;
}
}
nconn = offset[nr-1]+nadj[nr-1];
avebandwidth1 /= nconn;
fprintf(stderr,
"Ave region ID difference before renumbering: %-lf\n",
avebandwidth1);
fprintf(stderr,
"Max region ID difference before renumbering: %-d\n",
maxbandwidth1);
fprintf(stderr,"\n");
/* Call Graph Renumbering algorithm */
newmap = (int *) malloc(nr*sizeof(int));
Graph_Renumber_GPS(nr, MR_ID(r0)-1, nadj, adj, newmap, &depth, &maxwidth);
/* Compute bandwidth after renumbering */
maxbandwidth2 = 0;
avebandwidth2 = 0;
for (i = 0; i < nr; i++) {
int off = offset[i];
int curid = newmap[i];
for (j = 0; j < nadj[i]; j++) {
int adjid = newmap[adj[off+j]];
int diff = abs(adjid-curid);
maxbandwidth2 = (diff > maxbandwidth2) ? diff : maxbandwidth2;
avebandwidth2 += diff;
nconn++;
}
}
nconn = offset[nr-1]+nadj[nr-1];
avebandwidth2 /= nconn;
if (maxbandwidth2 < maxbandwidth1 && avebandwidth2 < avebandwidth1) {
/* Renumber */
idx = 0; i = 0;
while ((mr = MESH_Next_Region(mesh,&idx))) {
MR_Set_ID(mr,newmap[i]+1);
i++;
}
fprintf(stderr,
"Ave region ID difference after renumbering: %-lf\n",
avebandwidth2);
fprintf(stderr,
"Max region ID difference after renumbering: %-d\n",
maxbandwidth2);
}
else {
nr = 0;
idx = 0;
while ((mr = MESH_Next_Region(mesh,&idx)))
MR_Set_ID(mr,++nr);
fprintf(stderr,"Bandwidth did not improve. Keeping old numbering with gaps eliminated\n");
}
fprintf(stderr,"\n\n\n");
free(nadj);
free(adj);
free(offset);
free(newmap);
}
}
#ifdef MSTK_USE_MARKERS
MSTK_FreeMarker(mkid);
#endif
}
vidatt = MAttrib_New(mesh,"vidrcm",INT,MVERTEX);
idx = 0;
while ((mv = MESH_Next_Vertex(mesh,&idx))) {
MEnt_Set_AttVal(mv,vidatt,MV_ID(mv),0.0,NULL);
}
/* We have to reset the max IDs stored in the mesh so that we can correctly
assign IDs to new entities */
MESH_Reset_Cached_MaxIDs(mesh);
return;
}
MVertex_ptr ME_Collapse(MEdge_ptr e, MVertex_ptr vkeep_in, int topoflag,
List_ptr *deleted_entities) {
MVertex_ptr vdel, vkeep, ev00, ev01, ev10, ev11, vert;
MEdge_ptr edge, edge2, oldedges[3], nuedges[2];
MFace_ptr face, face2, rface1, rface2;
MRegion_ptr reg, reg2;
List_ptr vedges, efaces, eregs, fedges, rfaces, fverts1, fverts2, vfaces;
int idx1, idx2, idx3, dir, status, nfe, nrf, allfound, degenerate;
int i, j, nfe2, nfv1, nfv2;
status = 1;
if (vkeep_in == NULL) {
vdel = ME_Vertex(e,0);
vkeep = ME_Vertex(e,1);
}
else {
vkeep = vkeep_in;
vdel = ME_OppVertex(e,vkeep);
}
int dimkeep, dimdel;
dimkeep = MV_GEntDim(vkeep); /* Model entity dim of vertex to keep */
dimdel = MV_GEntDim(vdel); /* Model entity dim of vertex to delete */
if (topoflag == 1) {
if (dimkeep == dimdel) {
if (MV_GEntID(vkeep) != MV_GEntID(vdel))
status = 0; /* cannot allow since it will cause
a dimensional reduction in mesh */
}
else if (dimdel < dimkeep) {
if (vkeep_in == NULL) {
/* If no preference was indicated on which vertex to retain,
we can collapse in the other direction */
MVertex_ptr vtemp = vdel;
vdel = vkeep;
vkeep = vtemp;
}
else
status = 0; /* can't reverse order or vertices and boundary of
mesh will get messed up if we go through as is */
}
}
else if (vkeep_in == NULL) {
/* If no preference was indicated for the kept vertex and
topological conformity with the underlying geometric model was
not requested, we prefer to keep an external boundary vertex
over an interior vertex or interior boundary vertex. This is
because it is more likely that the external boundary vertex
would have a boundary condition applied to it. If a preference
was indicated, we just have to respect that. */
int vdel_external = 0;
/* Check if any edges connected to vdel have only one connected face */
vedges = MV_Edges(vdel);
idx1 = 0;
while ((edge = (MEdge_ptr) List_Next_Entry(vedges,&idx1))) {
List_ptr efaces = ME_Faces(edge);
int nef = List_Num_Entries(efaces);
List_Delete(efaces);
if (nef < 2) {
vdel_external = 1;
break;
}
}
List_Delete(vedges);
/* check if any face connected to vdel has only one region
connected to it */
if (!vdel_external) {
vfaces = MV_Faces(vdel);
idx1 = 0;
while ((face = (MFace_ptr) List_Next_Entry(vfaces,&idx1))) {
List_ptr fregs = MF_Regions(face);
int nfr = fregs ? List_Num_Entries(fregs) : 0;
if (fregs) List_Delete(fregs);
if (nfr == 1) {
vdel_external = 0;
break;
}
}
List_Delete(vfaces);
}
if (vdel_external) {
/* swap the vertices in the hope that vkeep is not also on an
external boundary. Since we have to go through with the
collapse anyway, there is no use of doing a detailed check
for whether vkeep is also on an external boundary */
MVertex_ptr vtemp = vdel;
vdel = vkeep;
vkeep = vtemp;
}
}
if (status == 0)
return NULL; /* Cannot collapse due to constraints of topological
conformity with geometric model */
*deleted_entities = List_New(10);
/* Need to collect this in advance because the info gets messed up later */
efaces = ME_Faces(e);
eregs = ME_Regions(e);
/* Replace vdel with vkeep in all edges connected to vdel */
vedges = MV_Edges(vdel);
idx1 = 0;
while ((edge = List_Next_Entry(vedges,&idx1))) {
ME_Replace_Vertex(edge,vdel,vkeep);
}
List_Delete(vedges);
/* Remove edge 'e' from all faces connected to e */
/* This part of the code is using some reliance on the internal
implementation of MF_Edges. While unlikely, it _might_ break if
the innards of MF_Edges are changed */
idx1 = 0;
while ((face = List_Next_Entry(efaces,&idx1))) {
fedges = MF_Edges(face,1,0);
nfe = List_Num_Entries(fedges);
/* Find the edge before and after e in the face */
oldedges[0] = oldedges[2] = NULL;
for (i = 0; i < nfe; i++) {
edge = List_Entry(fedges,i);
if (edge == e) continue;
dir = MF_EdgeDir_i(face,i);
if (ME_Vertex(edge,dir) == vkeep)
oldedges[0] = edge;
else if (ME_Vertex(edge,!dir) == vkeep)
oldedges[2] = edge;
}
oldedges[1] = e;
nuedges[0] = oldedges[0];
nuedges[1] = oldedges[2];
/* Replace oldedges[0], oldedges[1] (=e), oldedges[2] with
oldedges[0], oldedges[2] since e is degenerate */
MF_Replace_Edges(face,3,oldedges,2,nuedges);
List_Delete(fedges);
}
/* Delete topologically degenerate regions */
/* Defined as two faces of the regions having the same vertices */
if (eregs) {
idx1 = 0;
while ((reg = List_Next_Entry(eregs,&idx1))) {
rfaces = MR_Faces(reg);
nrf = List_Num_Entries(rfaces);
if (nrf == 4) {
List_ptr rverts = MR_Vertices(reg);
if (List_Num_Entries(rverts) == 4) {
MR_Delete(reg,0); /* This is a tet - it will become degenerate */
}
List_Delete(rverts);
}
else {
degenerate = 0;
for (i = 0; i < nrf; i++) {
rface1 = List_Entry(rfaces,i);
fverts1 = MF_Vertices(rface1,1,0);
nfv1 = List_Num_Entries(fverts1);
for (j = i+1; j < nrf; j++) {
rface2 = List_Entry(rfaces,j);
fverts2 = MF_Vertices(rface2,1,0);
nfv2 = List_Num_Entries(fverts2);
if (nfv1 != nfv2) {
List_Delete(fverts2);
continue; /* can't be exactly coincident */
}
allfound = 1;
idx2 = 0;
while ((vert = List_Next_Entry(fverts2,&idx2))) {
if (!List_Contains(fverts1,vert)) {
allfound = 0;
break;
}
}
List_Delete(fverts2);
if (allfound) {
degenerate = 1;
break;
}
} /* for (j = i+1 ... */
List_Delete(fverts1);
if (degenerate) break;
} /* for (i = 0; i < nrf;.... */
if (degenerate) {
List_Add(*deleted_entities,reg);
MR_Delete(reg,0);
}
} /* if (nrf == 4) .. else ... */
List_Delete(rfaces);
} /* while ((reg = ...)) */
}
/* Delete topologically degenerate faces */
if (efaces) {
idx1 = 0;
while ((face = List_Next_Entry(efaces,&idx1))) {
fedges = MF_Edges(face,1,0);
if (List_Num_Entries(fedges) == 2) {
/* Disconnect the regions from the face before deleting */
List_ptr fregs = MF_Regions(face);
if (fregs) {
idx2 = 0;
while ((reg = List_Next_Entry(fregs,&idx2)))
MR_Rem_Face(reg,face);
List_Delete(fregs);
}
List_Add(*deleted_entities,face);
MF_Delete(face,0);
}
List_Delete(fedges);
}
List_Delete(efaces);
}
/* Now merge edges which have the same end vertices */
/* Prefer to preserve edges on external boundaries over internal edges */
vedges = MV_Edges(vkeep);
idx1 = 0;
while ((edge = List_Next_Entry(vedges,&idx1))) {
if (edge == e) continue;
ev00 = ME_Vertex(edge,0);
ev01 = ME_Vertex(edge,1);
idx2 = 0;
while ((edge2 = List_Next_Entry(vedges,&idx2))) {
if (edge == e || edge == edge2) continue;
ev10 = ME_Vertex(edge2,0);
ev11 = ME_Vertex(edge2,1);
if ((ev00 == ev10 && ev01 == ev11) ||
(ev00 == ev11 && ev10 == ev01)) {
int external_edge, external_edge2;
int edim = 4;
external_edge = 0;
edim = ME_GEntDim(edge);
if (edim == 1 || edim == 2 || edim == 4) { /* check if external edge */
efaces = ME_Faces(edge);
int nef = List_Num_Entries(efaces);
if (nef == 1) {
external_edge = 1;
}
else {
idx3 = 0;
while ((face = List_Next_Entry(efaces,&idx2))) {
List_ptr fregs = MF_Regions(face);
int nfr = fregs ? List_Num_Entries(fregs) : 0;
if (fregs) List_Delete(fregs);
if (nfr == 1) {
external_edge = 1;
break;
}
}
}
List_Delete(efaces);
}
external_edge2 = 0;
edim = ME_GEntDim(edge2);
if (edim == 1 || edim == 2 || edim == 4) { /* check if external edge */
efaces = ME_Faces(edge2);
int nef = List_Num_Entries(efaces);
if (nef == 1) {
external_edge2 = 1;
}
else {
idx3 = 0;
while ((face = List_Next_Entry(efaces,&idx2))) {
List_ptr fregs = MF_Regions(face);
int nfr = fregs ? List_Num_Entries(fregs) : 0;
if (fregs) List_Delete(fregs);
if (nfr == 1) {
external_edge2 = 1;
break;
}
}
}
List_Delete(efaces);
}
/* If edge2 is not external or both edges are external, go
ahead and merge (edge2 will be deleted subject to
topological checks if topoflag is 1) */
if (!external_edge2 || (external_edge && external_edge2)) {
MEs_Merge(edge,edge2,topoflag);
List_Rem(vedges,edge2);
List_Add(*deleted_entities,edge2);
break;
}
}
}
}
List_Delete(vedges);
/* Merge faces with the same set of edges */
vfaces = MV_Faces(vkeep);
if (vfaces) {
idx1 = 0;
while ((face = List_Next_Entry(vfaces,&idx1))) {
fedges = MF_Edges(face,1,0);
nfe = List_Num_Entries(fedges);
idx2 = 0;
while ((face2 = List_Next_Entry(vfaces,&idx2))) {
List_ptr fedges2;
if (face2 == face) continue;
fedges2 = MF_Edges(face2,1,0);
nfe2 = List_Num_Entries(fedges2);
if (nfe != nfe2) {
List_Delete(fedges2);
continue;
}
allfound = 1;
for (i = 0; i < nfe2; i++) {
edge = List_Entry(fedges2,i);
if (!List_Contains(fedges,edge)) {
allfound = 0;
break;
}
}
List_Delete(fedges2);
if (allfound) {
List_ptr fregs = MF_Regions(face);
int external_face = fregs ? (List_Num_Entries(fregs) == 1) : 0;
if (fregs) List_Delete(fregs);
List_ptr fregs2 = MF_Regions(face2);
int external_face2 = fregs2 ? (List_Num_Entries(fregs2) == 1) : 0;
if (fregs2) List_Delete(fregs2);
/* Proceed with merge (which will delete face2) only if face2 is
not an external face or both face and face2 are external */
if (!external_face2 || (external_face && external_face2)) {
MFs_Merge(face,face2,topoflag);
List_Rem(vfaces,face2);
List_Add(*deleted_entities,face2);
break;
}
}
} /* while (face2 = List_Next_Entry(vfaces,... */
List_Delete(fedges);
} /* while (face = List_Next_Entry(vfaces,... */
List_Delete(vfaces);
}
/* Now actually delete the collapse edge and the to-be-merged vertex */
ME_Delete(e,0);
List_Add(*deleted_entities,e);
MV_Delete(vdel,0);
List_Add(*deleted_entities,vdel);
if (eregs) {
idx1 = 0;
while ((reg = List_Next_Entry(eregs,&idx1)))
MR_Update_ElementType(reg);
List_Delete(eregs);
}
return vkeep;
}
MVertex_ptr ME_Split_SimplexMesh(MEdge_ptr esplit, double *splitxyz) {
int i, j, k, rfdir, ntets=0, ntris=0, *fdim, *fid, *rid=NULL, found;
MVertex_ptr vsplit, ev[2], (*tetverts)[4]=NULL, (*triverts)[3]=NULL, fv;
MVertex_ptr fvarr[3], rvarr[4];
MFace_ptr f;
MRegion_ptr r;
List_ptr etets, rfaces, etris, fverts;
Mesh_ptr mesh = ME_Mesh(esplit);
ev[0] = ME_Vertex(esplit,0);
ev[1] = ME_Vertex(esplit,1);
etets = ME_Regions(esplit);
if (etets) {
ntets = List_Num_Entries(etets);
tetverts = (MVertex_ptr (*)[4]) malloc(ntets*sizeof(MVertex_ptr [4]));
rid = (int *) malloc(ntets*sizeof(int));
}
for (i = 0; i < ntets; i++) {
r = List_Entry(etets,i);
rfaces = MR_Faces(r);
/* Find a tet face that uses ev[0] but not ev[1] */
found = 0;
for (j = 0; !found && j < 4; j++) {
f = List_Entry(rfaces,j);
fverts = MF_Vertices(f,1,0);
if (List_Contains(fverts,ev[0]) &&
!List_Contains(fverts,ev[1])) {
found = 1;
/* Get the two vertices (a,b) of this face excluding ev[0] in
such an order that ev[0],a,b,ev[1] will form a valid
tet. This requires checking whether the face points into or
out of this tet (look at rfdir) */
rfdir = MR_FaceDir_i(r,j);
for (k = 0; k < 3; k++) {
fv = List_Entry(fverts,k);
if (fv == ev[0]) {
tetverts[i][0] = ev[0];
tetverts[i][1] = rfdir ? List_Entry(fverts,(k+2)%3) : List_Entry(fverts,(k+1)%3);
tetverts[i][2] = rfdir ? List_Entry(fverts,(k+1)%3) : List_Entry(fverts,(k+2)%3);
tetverts[i][3] = ev[1];
}
}
}
List_Delete(fverts);
if (found) break;
}
List_Delete(rfaces);
}
/* Now that we finished collecting info about the connected tets we
can delete them */
if (etets) {
for (i = 0; i < ntets; i++)
MR_Delete(List_Entry(etets,i),0);
List_Delete(etets);
}
/* Now get the triangular face connected to the edge. For each
triangular face, record the vertex opposite to edge esplit and
delete the triangular face */
etris = ME_Faces(esplit);
if (etris) {
ntris = List_Num_Entries(etris);
triverts = (MVertex_ptr (*)[3]) malloc(ntris*sizeof(MVertex_ptr[3]));
fdim = (int *) malloc(ntris*sizeof(int));
fid = (int *) malloc(ntris*sizeof(int));
}
for (i = 0; i < ntris; i++) {
f = List_Entry(etris,i);
fverts = MF_Vertices(f,1,0);
for (j = 0; j < 3; j++) {
fv = List_Entry(fverts,j);
if (fv != ev[0] && fv != ev[1]) {
triverts[i][0] = fv;
triverts[i][1] = List_Entry(fverts,(j+1)%3);
triverts[i][2] = List_Entry(fverts,(j+2)%3);
fdim[i] = MF_GEntDim(f);
fid[i] = MF_GEntID(f);
break;
}
}
List_Delete(fverts);
MF_Delete(f,0);
}
if (etris) List_Delete(etris);
/* Now split the edge itself */
vsplit = ME_Split(esplit, splitxyz);
/* Now for each tri face that we deleted, create two tri faces that
incorporate the split vertex, one of the split edge vertices and
opposite vertex */
for (i = 0; i < ntris; i++) {
/* First triangle */
fvarr[0] = triverts[i][0];
fvarr[1] = triverts[i][1];
fvarr[2] = vsplit;
f = MF_New(mesh);
MF_Set_Vertices(f,3,fvarr);
MF_Set_GEntDim(f,fdim[i]);
MF_Set_GEntID(f,fid[i]);
/* Second triangle */
fvarr[0] = triverts[i][0];
fvarr[1] = vsplit;
fvarr[2] = triverts[i][2];
f = MF_New(mesh);
MF_Set_Vertices(f,3,fvarr);
MF_Set_GEntDim(f,fdim[i]);
MF_Set_GEntID(f,fid[i]);
}
if (ntris) {
free(triverts);
free(fdim);
free(fid);
}
/* Now for each tet that we deleted, create two tets (these will use
the split faces that are already created */
for (i = 0; i < ntets; i++) {
rvarr[0] = vsplit;
rvarr[1] = tetverts[i][2];
rvarr[2] = tetverts[i][1];
rvarr[3] = tetverts[i][0];
r = MR_New(mesh);
MR_Set_Vertices(r,4,rvarr,0,NULL);
MR_Set_GEntID(r,rid[i]);
rvarr[0] = vsplit;
rvarr[1] = tetverts[i][1];
rvarr[2] = tetverts[i][2];
rvarr[3] = tetverts[i][3];
r = MR_New(mesh);
MR_Set_Vertices(r,4,rvarr,0,NULL);
MR_Set_GEntID(r,rid[i]);
}
if (ntets) {
free(tetverts);
free(rid);
}
return vsplit;
}