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embeddings:: cylinder_horo

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Zeno Rogue 2023-01-27 16:46:54 +01:00
parent d7fe4af1e9
commit a45ae2cd21
1 changed files with 21 additions and 1 deletions
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22
embeddings.cpp
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@ -594,6 +594,24 @@ struct emb_euc_cylinder_he : emb_euc_cylinder {
}
};
struct emb_euc_cylinder_horo : emb_euc_cylinder {
ld center_z() override { return 0; }
bool no_spin() override { return true; }
hyperpoint actual_to_intermediate(hyperpoint a) override {
ld z0 = zlevel(a);
a /= exp(z0);
auto hy = deparabolic13(a);
hy[2] = z0;
return hy;
}
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return zpush(i[2]) * parabolic1(i[1]) * xpush(i[0]);
}
transmatrix get_lsti() override {
return cspin90(0, 2);
}
};
struct emb_euc_in_sph : emb_euclid_noniso {
bool is_euc_in_sph() override { return true; }
ld center_z() override { return 1; }
@ -678,7 +696,9 @@ EX unique_ptr<embedding_method> make_embed() {
if(!embedded_plane)
emb1 = new emb_none;
else if(any_cylinder(spatial_embedding) && mgclass() == gcEuclid)
emb1 = spatial_embedding == seCylinderHE ? new emb_euc_cylinder_he : new emb_euc_cylinder;
emb1 = spatial_embedding == seCylinderHE ? new emb_euc_cylinder_he :
spatial_embedding == seCylinderHoro ? new emb_euc_cylinder_horo :
new emb_euc_cylinder;
else if(mgclass() == ggclass())
emb1 = new emb_same_in_same;
else if(mgclass() == gcSphere && among(ggclass(), gcHyperbolic, gcEuclid))