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product:: more fixes to s2xe view

This commit is contained in:
Zeno Rogue 2019-08-18 22:08:34 +02:00
parent 7920446969
commit 3c5a5f455a
1 changed files with 17 additions and 1 deletions
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18
drawing.cpp
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@ -983,7 +983,23 @@ void draw_s2xe(dqi_poly *p, dqi_poly *npoly) {
if(c1.distance > M_PI/2 && c0.distance > M_PI/2 && crossdot(c0.direction, c1.direction).second < 0) return;
if(c1.bad == 2) return;
if(c1.bad == 1) no_gens = true;
if(npoly->color && c1.distance > M_PI/2) npoly->color = 0;
}
if(!no_gens) {
vector<ld> angles(p->cnt);
for(int i=0; i<p->cnt; i++) {
angles[i] = atan2(pd[i].direction[1], pd[i].direction[0]);
}
sort(angles.begin(), angles.end());
angles.push_back(angles[0] + 2 * M_PI);
bool ok = false;
for(int i=1; i<isize(angles); i++)
if(angles[i] >= angles[i-1] + M_PI) ok = true;
if(!ok) {
for(auto &c: pd) if(c.distance > M_PI/2) return;
no_gens = true;
}
}
int g = no_gens ? 0 : maxgen;