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cleanup the qtm matrix

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iacore 2024-10-03 20:09:52 +00:00
parent ce049035ac
commit 5c524b2e0a
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1 changed files with 21 additions and 16 deletions
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37
nonisotropic.cpp
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@ -2551,25 +2551,30 @@ EX namespace twist {
M[0][0] = +xx - yy - zz + ww;
M[1][1] = -xx + yy - zz + ww;
M[2][2] = -xx - yy + zz + ww;
M[0][1] = -2 * (xy + zw);
M[1][0] = -2 * (xy - zw);
M[0][2] = 2 * (xz - yw);
M[2][0] = 2 * (xz + yw);
M[1][2] = -2 * (yz + xw);
M[2][1] = -2 * (yz - xw);
if(hyperbolic) {
swap(M[0][2], M[1][2]);
swap(M[2][0], M[2][1]);
M[1][2] *= -1;
M[2][0] *= -1;
M[2][2] = xx + yy + zz + ww;
return M;
}
M[0][1] = -2 * (xy + zw);
M[1][0] = -2 * (xy - zw);
M[0][2] = -2 * (yz + xw);
M[2][0] = 2 * (yz - xw);
M[1][2] = -2 * (xz - yw);
M[2][1] = 2 * (xz + yw);
} else {
M[2][2] = -xx - yy + zz + ww;
M[0][1] = -2 * (xy + zw);
M[1][0] = -2 * (xy - zw);
M[0][2] = 2 * (xz - yw);
M[2][0] = 2 * (xz + yw);
M[1][2] = -2 * (yz + xw);
M[2][1] = -2 * (yz - xw);
}
return M;