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Code Issues Releases Wiki Activity

rogueviz::fundamental:: now works with valences greater than 3

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This commit is contained in:
Zeno Rogue 2025-02-23 20:54:23 +01:00
parent f694104a54
commit 3f2bb8f6bd
1 changed files with 32 additions and 12 deletions
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44
rogueviz/fundamental.cpp
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@ -59,6 +59,21 @@ shiftmatrix labelpos(shiftpoint h1, shiftpoint h2) {
ld widthfactor = 5;
ld label_scale = 1;
bool single_edges = false;
bool fill_faces = true;
int group_count(cellwalker cw) {
if(is_connected(cw)) return 0;
auto cw1 = cw;
int groups = 0;
do {
if(!is_connected(cw1)) groups++;
cw1 = cw1 + wstep - 1;
}
while(cw1 != cw);
return groups;
}
void fundamental_marker() {
if(!funmode || !quotient) return;
same.clear();
@ -86,15 +101,15 @@ void fundamental_marker() {
}
}
while(true) {
while(fill_faces) {
int f = face_edges;
for(int k=0; k<isize(cells); k++) {
cell *c = cells[k];
for(int i=0; i<c->type; i++) {
cellwalker cw(c, i);
if(is_connected(cw) && is_connected(cw+1) && !is_connected(cw+wstep-1)) {
if(group_count(cw) == 1) {
face_edges++;
be_connected(cw+wstep-1);
be_connected(cw);
}
}
}
@ -109,29 +124,33 @@ void fundamental_marker() {
cell *c = cells[k];
for(int i=0; i<c->type; i++) {
cellwalker cw0(c, i);
if(!is_connected(cw0) && !is_connected(cw0+1) && !is_connected(cw0+wstep-1))
corners++, cw = cw0;
if(single_edges) {
if(!is_connected(cw0)) corners++, cw = cw0;
}
else {
if(group_count(cw0) >= 3) corners++, cw = cw0;
}
}
}
if(!corners) return;
// printf("tree edges = %d, face edges = %d, corners = %d\n", tree_edges, face_edges, corners);
vector<cellwalker> cornerlist;
map<cellwalker, int> corner_id;
for(int ci=0; ci<corners; ci++) {
cellwalker cw0 = cw;
corner_id[cw0] = cornerlist.size();
cornerlist.push_back(cw0);
corner_id[cw] = cornerlist.size();
cornerlist.push_back(cw);
while(true) {
cw++;
if(is_connected(cw)) {
while(is_connected(cw)) {
cw += wstep;
cw++;
}
if(!is_connected(cw+1) && !is_connected(cw+wstep-1))
break;
if(single_edges || group_count(cw) >= 3) break;
}
}
auto corners0 = corners;
@ -200,6 +219,7 @@ void fundamental_marker() {
auto cw = cornerlist[ci];
cellwalker cw1 = (cw+1+wstep);
bool mirrored = false;
while(is_connected(cw1)) cw1 = cw1 + 1 + wstep;
if(!corner_id.count(cw1)) cw1 = cw1 + wmirror - 1, mirrored = true;
if(!corner_id.count(cw1)) println(hlog, "still bad");
auto ci1 = corner_id[cw1];