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fixed hdist computation in SL, also fixed hpxy and hpxy

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Zeno Rogue
2019-08-24 20:29:10 +02:00
parent 50052f27f5
commit 47d309e408
3 changed files with 10 additions and 3 deletions
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6
hyperpoint.cpp
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@@ -305,11 +305,11 @@ EX ld edge_of_triangle_with_angles(ld alpha, ld beta, ld gamma) {
}
hyperpoint hpxy(ld x, ld y) {
return hpxyz(x,y, translatable ? 1 : sphere ? sqrt(1-x*x-y*y) : sqrt(1+x*x+y*y));
return hpxyz(x,y, sl2 ? sqrt(1+x*x+y*y) : translatable ? 1 : sphere ? sqrt(1-x*x-y*y) : sqrt(1+x*x+y*y));
}
hyperpoint hpxy3(ld x, ld y, ld z) {
return hpxyz3(x,y,z, translatable ? 1 : sphere ? sqrt(1-x*x-y*y-z*z) : sqrt(1+x*x+y*y+z*z));
return hpxyz3(x,y,z, sl2 ? sqrt(1+x*x+y*y-z*z) :translatable ? 1 : sphere ? sqrt(1-x*x-y*y-z*z) : sqrt(1+x*x+y*y+z*z));
}
// a point (I hope this number needs no comments ;) )
@@ -874,6 +874,8 @@ EX ld hdist(const hyperpoint& h1, const hyperpoint& h2) {
auto d2 = product_decompose(h2);
return hypot(PIU(hdist(d1.second, d2.second)), d1.first - d2.first);
}
case gcSL2:
return hdist0(inverse(slr::translate(h1)) * h2);
default:
if(iv < 0) return 0;
return sqrt(iv);