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rogueviz:: sunflower:: change sunflower-angle (partial)

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This commit is contained in:
Zeno Rogue 2022-03-27 09:11:30 +02:00
parent d92f7f6765
commit fc29739741
1 changed files with 19 additions and 1 deletions
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20
rogueviz/sunflower.cpp
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@ -59,7 +59,7 @@ hyperpoint p(int i) {
vector<int> inext, inext2; vector<int> inext, inext2;
vector<int> fibs = {1, 2}; vector<int> fibs;
color_t sunflower1 = 0xC04000FF; color_t sunflower1 = 0xC04000FF;
color_t sunflower2 = 0xFFD500FF; color_t sunflower2 = 0xFFD500FF;
@ -104,10 +104,25 @@ bool sunflower_cell(cell *c, shiftmatrix V) {
if(outward) qfrac = 0; if(outward) qfrac = 0;
if(iqty < 0 || iqty > 2000000) return false; if(iqty < 0 || iqty > 2000000) return false;
if(fibs.empty()) {
ld best_error = 1;
vector<int> sgns;
for(int i=1; i<iqty; i++) {
ld v = i * step_angle / (2*M_PI);
v = frac(v);
auto sgn = v > .5;
if(sgn) v = 1-v;
if(v < best_error) fibs.push_back(i), sgns.push_back(sgn), best_error = v;
}
println(hlog, "fibs = ", fibs);
println(hlog, "sgns = ", sgns);
}
ps.resize(iqty); ps.resize(iqty);
inext.resize(iqty); inext.resize(iqty);
inext2.resize(iqty); inext2.resize(iqty);
while(fibs.back() < iqty) { while(fibs.back() < iqty) {
/* to do: might not work correctly if step_angle is changed */
auto add = fibs.back() + *(fibs.end()-2); auto add = fibs.back() + *(fibs.end()-2);
fibs.push_back(add); fibs.push_back(add);
} }
@ -204,6 +219,9 @@ int readArgs() {
else if(argis("-sunflower-out")) { else if(argis("-sunflower-out")) {
shift(); outward = argi(); shift(); outward = argi();
} }
else if(argis("-sunflower-angle")) {
shift_arg_formula(step_angle, [] { fibs.clear(); });
}
else if(argis("-sunflower-adj")) { else if(argis("-sunflower-adj")) {
adjust_rug = true; adjust_rug = true;
shift_arg_formula(distance_per_rug); shift_arg_formula(distance_per_rug);