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Code Issues Releases Wiki Activity

irregular maps no longer save a different modeline every time due to floating point precision

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This commit is contained in:
Zeno Rogue 2024-03-27 21:19:44 +01:00
parent 5efacd787d
commit 4a908273d0
1 changed files with 22 additions and 3 deletions
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25
irregular.cpp
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@ -804,6 +804,8 @@ bool save_map(const string& fname) {
return true;
}
vector<ld> float_order;
EX void save_map_bin(hstream& f) {
if(!base) { f.write<short>(-1); return; }
auto& all = base->allcells();
@ -814,6 +816,19 @@ EX void save_map_bin(hstream& f) {
f.write<short> (base_geometry);
f.write<short> (isize(all));
f.write<short> (origcells);
int foi = 0;
auto check_float_order = [&] (ld x) {
if(foi >= isize(float_order)) {
float_order.push_back(x);
f.write<ld>(x);
}
else if(abs(float_order[foi] - x) > 1e-6) {
println(hlog, float_order[foi], " vs ", x, " : abs difference is ", abs(float_order[foi] - x));
float_order[foi] = x;
}
f.write<ld>(float_order[foi++]);
};
for(auto h: all) {
origcells = 0;
@ -823,9 +838,9 @@ EX void save_map_bin(hstream& f) {
f.write<short> (origcells);
for(auto i: cells_of_heptagon[h->master]) if(cells[i].generation == 0) {
auto &ci = cells[i];
f.write<ld>(ci.p[0]);
f.write<ld>(ci.p[1]);
f.write<ld>(ci.p[LDIM]);
check_float_order(ci.p[0]);
check_float_order(ci.p[1]);
check_float_order(ci.p[LDIM]);
}
}
}
@ -874,6 +889,7 @@ EX void load_map_bin(hstream& f) {
density = cellcount * 1. / isize(all);
cells.clear();
float_order.clear();
for(auto h: all) {
int q = f.get<short>();
@ -886,6 +902,9 @@ EX void load_map_bin(hstream& f) {
a = f.get<ld>();
b = f.get<ld>();
c = f.get<ld>();
float_order.push_back(a);
float_order.push_back(b);
float_order.push_back(c);
s.p = hpxyz(a, b, c);
s.p = normalize(s.p);
for(auto c0: all) s.relmatrices[c0] = calc_relative_matrix(c0, h, s.p);