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embedding: Nil cylinder, also fixed the product cylinder

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Zeno Rogue 2023-01-30 15:36:44 +01:00
parent ad93a6db0b
commit 9ce2a90c33
1 changed files with 15 additions and 1 deletions
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16
embeddings.cpp
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@ -653,7 +653,7 @@ struct emb_euc_cylinder : emb_euclid_noniso {
struct emb_euc_cylinder_he : emb_euc_cylinder {
bool no_spin() override { return true; }
transmatrix get_lsti() override { return cspin90(0, 2); }
transmatrix get_lsti() override { return cspin90(0, 2) * cspin90(0, 1); }
hyperpoint actual_to_intermediate(hyperpoint a) override {
ld z0 = zlevel(a);
a /= exp(z0);
@ -666,6 +666,18 @@ struct emb_euc_cylinder_he : emb_euc_cylinder {
}
};
struct emb_euc_cylinder_nil : emb_euc_cylinder {
transmatrix get_lsti() override { return cspin90(0, 2) * cspin90(0, 1); }
hyperpoint actual_to_intermediate(hyperpoint a) override {
ld y0 = atan2(a[1], a[0]);
ld x0 = hypot(a[0], a[1]);
return hyperpoint(x0-1, y0, a[2], 1);
}
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return zpush(i[2]) * cspin(1, 0, i[1]) * xpush(i[0]);
}
};
struct emb_euc_cylinder_horo : emb_euc_cylinder {
ld center_z() override { return 0; }
bool no_spin() override { return true; }
@ -798,6 +810,7 @@ EX unique_ptr<embedding_method> make_embed() {
else if(any_cylinder(spatial_embedding) && mgclass() == gcEuclid)
emb1 = spatial_embedding == seCylinderHE ? new emb_euc_cylinder_he :
spatial_embedding == seCylinderHoro ? new emb_euc_cylinder_horo :
spatial_embedding == seCylinderNil ? new emb_euc_cylinder_nil :
spatial_embedding == seCylinderSL2 ? new emb_euc_cylinder_sl2 :
new emb_euc_cylinder;
else if(mgclass() == ggclass())
@ -1050,6 +1063,7 @@ void embedding_method::auto_configure() {
if(spatial_embedding == seCylinderH) configure_cylinder();
if(spatial_embedding == seCylinderHE) configure_cylinder();
if(spatial_embedding == seCylinderSL2) configure_cylinder();
if(spatial_embedding == seCylinderNil) configure_cylinder();
}
EX void invoke_embed(geom3::eSpatialEmbedding se) {