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embeddings:: break cylinder feature

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This commit is contained in:
Zeno Rogue 2023-04-27 22:46:31 +02:00
parent b49a52d6af
commit 8ede45cb12
2 changed files with 21 additions and 2 deletions
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16
embeddings.cpp
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@ -102,6 +102,7 @@ EX namespace geom3 {
EX bool auto_configure = true;
EX bool flat_embedding = false;
EX bool inverted_embedding = false;
EX bool apply_break_cylinder = true;
EX ld euclid_embed_scale_mean() { return euclid_embed_scale * sqrt(euclid_embed_scale_y); }
EX void set_euclid_embed_scale(ld x) { euclid_embed_scale = x; euclid_embed_scale_y = 1; euclid_embed_rotate = 0; }
@ -302,6 +303,9 @@ EX }
void prepare_lta();
void auto_configure();
virtual ~embedding_method() {}
/* should we break cylinder between M1 and M2 */
virtual bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) { return false; }
};
#endif
@ -775,6 +779,12 @@ struct emb_euc_in_sl2 : emb_euclid_noniso {
transmatrix get_lsti() override { return cspin90(2, 1); }
};
bool break_dims(const shiftmatrix& M1, const shiftmatrix& M2, int i, int j) {
transmatrix uM1 = current_display->radar_transform * unshift(M1);
transmatrix uM2 = current_display->radar_transform * unshift(M2);
return uM1[j][j] < 0 && uM2[j][j] < 0 && uM1[i][j] * uM2[i][j] < 0;
}
/* for both seCylinderH and seCylinderE. Possibly actually works for CliffordTorus too */
struct emb_euc_cylinder : emb_euclid_noniso {
bool is_cylinder() override { return true; }
@ -791,6 +801,7 @@ struct emb_euc_cylinder : emb_euclid_noniso {
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return xpush(i[0]) * cspin(1, 2, i[1]) * zpush(i[2]);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return break_dims(M1, M2, 1, 2); }
};
struct emb_euc_cylinder_he : emb_euc_cylinder {
@ -806,6 +817,7 @@ struct emb_euc_cylinder_he : emb_euc_cylinder {
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return zpush(i[2]) * cspin(1, 0, i[1]) * xpush(i[0]);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return break_dims(M1, M2, 1, 0); }
};
struct emb_euc_cylinder_twisted : emb_euc_cylinder {
@ -830,6 +842,7 @@ struct emb_euc_cylinder_nil : emb_euc_cylinder_twisted {
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return zpush(i[2]) * cspin(1, 0, i[1]) * xpush(i[0]);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return break_dims(M1, M2, 1, 0); }
};
struct emb_euc_cylinder_horo : emb_euc_cylinder {
@ -848,6 +861,7 @@ struct emb_euc_cylinder_horo : emb_euc_cylinder {
transmatrix get_lsti() override {
return cspin90(0, 2);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return false; }
};
struct emb_euc_cylinder_sl2 : emb_euc_cylinder_twisted {
@ -864,6 +878,7 @@ struct emb_euc_cylinder_sl2 : emb_euc_cylinder_twisted {
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return cspin(2, 3, i[2]) * cspin(0, 1, i[2] + i[1]) * xpush(i[0]);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return break_dims(M1, M2, 0, 1); }
};
/** Clifford torus */
@ -882,6 +897,7 @@ struct emb_euc_in_sph : emb_euclid_noniso {
transmatrix intermediate_to_actual_translation(hyperpoint i) override {
return cspin(0, 2, i[0]) * cspin(1, 3, i[1]) * cspin(2, 3, i[2]);
}
bool break_cylinder(const shiftmatrix& M1, const shiftmatrix& M2) override { return break_dims(M1, M2, 0, 2) || break_dims(M1, M2, 1, 3); }
};
/* todo model change */

7
euclid.cpp
View File

@ -261,8 +261,11 @@ EX namespace euc {
bool draw = drawcell_subs(c, V * spin(master_to_c7_angle()));
if(in_wallopt() && isWall3(c) && isize(dq::drawqueue) > 1000 && !hybrid::pmap) continue;
if(draw) for(int i=0; i<S7; i++)
dq::enqueue_by_matrix(h->move(i), optimized_shift(V * adj(h, i)));
if(draw) for(int i=0; i<S7; i++) {
auto V1 = V * adj(h, i);
if(geom3::apply_break_cylinder && cgi.emb->break_cylinder(V, V1)) continue;
dq::enqueue_by_matrix(h->move(i), optimized_shift(V1));
}
}
}