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finish_apeirogon now works with ultra-ideal center

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Zeno Rogue 2022-04-25 00:08:27 +02:00
parent 575fd136d7
commit 8e3c5d367c
1 changed files with 13 additions and 1 deletions
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14
floorshapes.cpp
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@ -355,7 +355,19 @@ void geometry_information::finish_apeirogon(hyperpoint center) {
last->she = isize(hpc);
hyperpoint b = hpc.back();
for(int i=1; i<15; i++) hpcpush(towards_inf(b, center, i));
hpcpush(normalize(1e-9 * C0 + center));
hyperpoint h = 1e-9 * C0 + center;
if(material(h) > 0)
hpcpush(normalize(h));
else {
ld left = -atan2(towards_inf(b, center, 15));
ld right = -atan2(towards_inf(hpc[last->s], center, 15));
if(right > left + 180*degree) right -= 360*degree;
if(right < left - 180*degree) right += 360*degree;
hyperpoint l1 = towards_inf(b, center, 15); l1 /= l1[2];
hyperpoint l2 = xspinpush0(left, 15); l2 /= l2[2];
/* call hpc.push_back directly to avoid adding points */
for(int i=0; i<=10; i++) hpc.push_back(xspinpush0(lerp(left, right, i/10.), 15));
}
for(int i=15; i>=1; i--) hpcpush(towards_inf(hpc[last->s], center, i));
hpcpush(hpc[last->s]);
}