void symmetriseMap(MultidimArray<DOUBLE> &img, FileName &fn_sym, bool do_wrap)
{
if (img.getDim() != 3)
REPORT_ERROR("symmetriseMap ERROR: symmetriseMap can only be run on 3D maps!");
img.setXmippOrigin();
SymList SL;
SL.read_sym_file(fn_sym);
Matrix2D<DOUBLE> L(4, 4), R(4, 4); // A matrix from the list
MultidimArray<DOUBLE> sum, aux;
sum = img;
aux.resize(img);
for (int isym = 0; isym < SL.SymsNo(); isym++)
{
SL.get_matrices(isym, L, R);
applyGeometry(img, aux, R, IS_INV, do_wrap);
sum += aux;
}
// Overwrite the input
img = sum / (SL.SymsNo() + 1);
}
DOUBLE check_symmetries(DOUBLE rot1, DOUBLE tilt1, DOUBLE psi1,
DOUBLE &rot2, DOUBLE &tilt2, DOUBLE &psi2)
{
int imax = SL.SymsNo() + 1;
Matrix2D<DOUBLE> L(4, 4), R(4, 4); // A matrix from the list
DOUBLE best_ang_dist = 3600;
DOUBLE best_rot2, best_tilt2, best_psi2;
DOUBLE tilt_angle, alpha, beta;
for (int i = 0; i < imax; i++)
{
DOUBLE rot2p, tilt2p, psi2p;
if (i == 0)
{
rot2p = rot2;
tilt2p = tilt2;
psi2p = psi2;
}
else
{
SL.get_matrices(i - 1, L, R);
L.resize(3, 3); // Erase last row and column
R.resize(3, 3); // as only the relative orientation is useful and not the translation
Euler_apply_transf(L, R, rot2, tilt2, psi2, rot2p, tilt2p, psi2p);
}
DOUBLE ang_dist = check_tilt_pairs(rot1, tilt1, psi1, rot2p, tilt2p, psi2p);
if (ang_dist < best_ang_dist)
{
best_ang_dist = ang_dist;
best_rot2 = rot2p;
best_tilt2 = tilt2p;
best_psi2 = psi2p;
}
}
rot2 = best_rot2;
tilt2 = best_tilt2;
psi2 = best_psi2;
return best_ang_dist;
}
