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arb:: fixed cycle_length computation

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Zeno Rogue 2021-07-29 12:02:44 +02:00
parent 1c31a987a8
commit ae33c14337
1 changed files with 39 additions and 9 deletions
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48
arbitrile.cpp
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@ -287,18 +287,48 @@ EX void unmirror() {
EX void compute_vertex_valence() {
auto& shs = arb::current.shapes;
int tcl = -1;
for(int i=0; i<isize(shs); i++) {
auto& sh = shs[i];
int n = isize(sh.vertices);
sh.cycle_length = n;
for(int k=0; k<n; k++) {
auto co = sh.connections[k];
co = shs[co.sid].connections[co.eid];
if(co.sid != i) throw hr_parse_exception("connection error in compute_stats");
sh.cycle_length = gcd(sh.cycle_length, k-co.eid);
sh.cycle_length = isize(sh.vertices);
}
while(true) {
for(int i=0; i<isize(shs); i++) {
auto& sh = shs[i];
int n = isize(sh.vertices);
for(int k=sh.cycle_length; k<n; k++) {
auto co = sh.connections[k];
auto co1 = sh.connections[k-sh.cycle_length];
if(co.sid != co1.sid) {
println(hlog, "ik = ", tie(i,k), " co=", co, "co1=", co1, " cl=", sh.cycle_length);
throw hr_parse_exception("connection error #2 in compute_vertex_valence");
}
shs[co.sid].cycle_length = abs(gcd(shs[co.sid].cycle_length, co.eid - co1.eid));
}
for(int k=0; k<n; k++) {
auto co = sh.connections[k];
co = shs[co.sid].connections[co.eid];
if(co.sid != i) throw hr_parse_exception("connection error in compute_vertex_valence");
sh.cycle_length = abs(gcd(sh.cycle_length, k-co.eid));
}
if(debugflags & DF_GEOM)
println(hlog, "tile ", i, " cycle_length = ", sh.cycle_length, " / ", n);
}
if(debugflags & DF_GEOM)
println(hlog, "tile ", i, " cycle_length = ", sh.cycle_length, " / ", n);
int new_tcl = 0;
for(int i=0; i<isize(shs); i++) {
auto& len = shs[i].cycle_length;
if(len < 0) len = -len;
new_tcl += len;
}
if(new_tcl == tcl) break;
tcl = new_tcl;
}
if(cgflags & qAFFINE) return;