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split fixmatrix into cases

This commit is contained in:
Zeno Rogue 2020-05-15 22:53:24 +02:00
parent f6448a994f
commit afe4d58cbb
1 changed files with 20 additions and 12 deletions
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32
hyperpoint.cpp
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@ -793,19 +793,27 @@ EX void fixmatrix(transmatrix& T) {
PIU(fixmatrix(T));
T = mscale(T, +z);
}
else if(euclid) {
for(int x=0; x<GDIM; x++) for(int y=0; y<=x; y++) {
ld dp = 0;
for(int z=0; z<GDIM; z++) dp += T[z][x] * T[z][y];
if(y == x) dp = 1 - sqrt(1/dp);
for(int z=0; z<GDIM; z++) T[z][x] -= dp * T[z][y];
}
for(int x=0; x<GDIM; x++) T[LDIM][x] = 0;
T[LDIM][LDIM] = 1;
else if(euclid)
fixmatrix_euclid(T);
else
orthonormalize(T);
}
EX void fixmatrix_euclid(transmatrix& T) {
for(int x=0; x<GDIM; x++) for(int y=0; y<=x; y++) {
ld dp = 0;
for(int z=0; z<GDIM; z++) dp += T[z][x] * T[z][y];
if(y == x) dp = 1 - sqrt(1/dp);
for(int z=0; z<GDIM; z++) T[z][x] -= dp * T[z][y];
}
else for(int x=0; x<MDIM; x++) for(int y=0; y<=x; y++) {
for(int x=0; x<GDIM; x++) T[LDIM][x] = 0;
T[LDIM][LDIM] = 1;
}
EX void orthonormalize(transmatrix& T) {
for(int x=0; x<MDIM; x++) for(int y=0; y<=x; y++) {
ld dp = 0;
for(int z=0; z<MDIM; z++) dp += T[z][x] * T[z][y] * sig(z);