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fixed product (non-embedding)

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This commit is contained in:
Zeno Rogue 2023-02-04 09:35:04 +01:00
parent de9149a8cd
commit 32491d6425
1 changed files with 28 additions and 3 deletions
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31
embeddings.cpp
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@ -299,9 +299,23 @@ hyperpoint embedding_method::flatten(hyperpoint a) {
/** dummy 'embedding method' used when no embedding is used (2D engine or 3D map) */
struct emb_none : embedding_method {
hyperpoint actual_to_intermediate(hyperpoint a) override { return a; }
hyperpoint intermediate_to_actual(hyperpoint i) override { return i; }
transmatrix intermediate_to_actual_translation(hyperpoint i) override { return rgpushxto0(i); }
hyperpoint actual_to_intermediate(hyperpoint a) override {
if(gproduct) return base_to_logical(a);
return a;
}
hyperpoint intermediate_to_actual(hyperpoint i) override {
if(gproduct) return logical_to_base(i);
return i;
}
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
if(gproduct) i = intermediate_to_actual(i);
return rgpushxto0(i);
}
hyperpoint flatten(hyperpoint a) {
if(gproduct) return a / exp(zlevel(a));
return embedding_method::flatten(a);
}
transmatrix base_to_actual(const transmatrix& T) override { return T; }
hyperpoint base_to_actual(hyperpoint h) override { return h; }
transmatrix actual_to_base(const transmatrix& T) override { return T; }
@ -324,6 +338,11 @@ struct emb_none : embedding_method {
#if CAP_BT
if(bt::in() && !mproduct) return bt::minkowski_to_bt(h);
#endif
if(mproduct) {
ld z = zlevel(h);
h /= h[2];
h[2] = z;
}
return h;
}
hyperpoint logical_to_base(hyperpoint h) override {
@ -333,6 +352,12 @@ struct emb_none : embedding_method {
if(bt::in() && !mproduct)
return bt::bt_to_minkowski(h);
#endif
if(mproduct) {
ld z = h[2];
h[2] = 1;
flatten(h);
h *= exp(z);
}
return h;
}
};