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rogueviz:: extra projection

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This commit is contained in:
Zeno Rogue 2023-12-27 16:28:08 +01:00
parent 517f4af193
commit eb4b7177f3
1 changed files with 20 additions and 1 deletions
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21
rogueviz/extra-projections.cpp
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@ -211,7 +211,26 @@ void add_extra_projections() {
ret[1] = H[1] / H[0] * x;
if(GDIM == 2) ret[2] = H[2] / H[0] * x;
ret[LDIM] = 1;
models::ori_to_scr(H);
models::ori_to_scr(ret);
});
add_extra("point-ideal-point equidistant", mf::horocyclic | mf::orientation, [] (shiftpoint& H_orig, hyperpoint& H, hyperpoint& ret) {
find_zlev(H);
models::scr_to_ori(H);
ld d0 = hdist0(H);
ld x = deparabolic13(H)[0];
ld y2 = d0*d0 - x*x;
ld y = y2 > 0 ? sqrt(y2) : 0;
ret[0] = x;
if(GDIM == 2) ret[1] = H[1] > 0 ? y : -y;
else if(GDIM == 3) {
ld r = hypot(H[1], H[2]);
if(r == 0) ret[1] = ret[2] = 0;
else ret[1] = y * H[1] / r, ret[2] = y * H[2] / r;
}
models::ori_to_scr(ret);
});
}