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big change: more configuration for the torus (and also Klein bottle)

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Zeno Rogue
2017-12-28 16:46:10 +01:00
parent d67ca714fd
commit 11569c693d
21 changed files with 546 additions and 287 deletions
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rug.cpp
+8 -4
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@@ -664,10 +664,10 @@ void preset(rugpoint *m) {
double c2 = b->edges[k2].len/blen;
double cz = (c1*c1-c2*c2+1) / 2;
double ch = sqrt(c2*c2 - cz*cz);
double ch = sqrt(c2*c2 - cz*cz + 1e-10);
double az = (a1*a1-a2*a2+1) / 2;
double ah = sqrt(a2*a2 - az*az);
double ah = sqrt(a2*a2 - az*az + 1e-10);
// c->h = a->h + (b->h-a->h) * cz + ch * ort
hyperpoint ort = (c->flat - a->flat - cz * (b->flat-a->flat)) / ch;
@@ -675,14 +675,17 @@ void preset(rugpoint *m) {
// m->h = a->h + (b->h-a->h) * az - ah * ort
hyperpoint res = a->flat + (b->flat-a->flat) * az - ah * ort;
for(int i=0; i<3; i++) h[i] += res[i];
h += res;
preset_points.emplace_back(hypot(blen * (ah+ch), blen * (az-cz)), c);
q++;
printf("A %lf %lf %lf %lf C %lf %lf %lf %lf\n", a1, a2, az, ah, c1, c2, cz, ch);
}
}
if(q>0) for(int i=0; i<3; i++) m->flat[i] = h[i]/q;
if(q>0) m->flat = h/q;
printf("preset (%d) -> %s\n", q, display(m->flat));
}
ld sse(hyperpoint h) {
@@ -1164,6 +1167,7 @@ void actDraw() {
Uint8 *keystate = SDL_GetKeyState(NULL);
int qm = 0;
double alpha = (ticks - lastticks) / 1000.0;
alpha /= 2.5;
lastticks = ticks;
transmatrix t = Id;