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embeddings:: simplifications

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This commit is contained in:
Zeno Rogue
2023-02-04 10:18:01 +01:00
parent 32491d6425
commit a14bceb681
4 changed files with 24 additions and 7 deletions
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16
embeddings.cpp
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@@ -300,11 +300,11 @@ hyperpoint embedding_method::flatten(hyperpoint a) {
struct emb_none : embedding_method {
hyperpoint actual_to_intermediate(hyperpoint a) override {
if(gproduct) return base_to_logical(a);
if(mhybrid) return base_to_logical(a);
return a;
}
hyperpoint intermediate_to_actual(hyperpoint i) override {
if(gproduct) return logical_to_base(i);
if(mhybrid) return logical_to_base(i);
return i;
}
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
@@ -343,6 +343,12 @@ struct emb_none : embedding_method {
h /= h[2];
h[2] = z;
}
if(sl2) {
ld z = atan2(h[2], h[3]);
h = slr::translate(h) * zpush0(-atan2(h[2], h[3]));
h[0] = h[0] / h[3]; h[1] = h[1] / h[3]; h[2] = z;
return h;
}
return h;
}
hyperpoint logical_to_base(hyperpoint h) override {
@@ -358,6 +364,12 @@ struct emb_none : embedding_method {
flatten(h);
h *= exp(z);
}
if(sl2) {
ld z = h[2];
h[2] = 0; h[3] = 1; normalize(h);
h = slr::translate(h) * zpush0(z);
return h;
}
return h;
}
};