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rug:: the basics work even if MAXMDIM == 3

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Zeno Rogue 2020-04-17 15:38:09 +02:00
parent d7ceb89ed8
commit 873f2f657a
1 changed files with 21 additions and 3 deletions
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24
rug.cpp
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@ -225,7 +225,9 @@ EX rugpoint *addRugpoint(hyperpoint h, double dist) {
else if(euclid && rug_euclid()) { else if(euclid && rug_euclid()) {
m->native = h * modelscale; m->native = h * modelscale;
m->native[2] = 0; m->native[2] = 0;
#if MAXMDIM >= 4
m->native[3] = 1; m->native[3] = 1;
#endif
m->valid = good_shape = true; m->valid = good_shape = true;
} }
@ -251,14 +253,16 @@ EX rugpoint *addRugpoint(hyperpoint h, double dist) {
else { else {
m->native = h; m->native = h;
ld hd = h[LDIM]; ld hd = h[LDIM];
for(int d=GDIM; d<4; d++) { for(int d=GDIM; d<MAXMDIM; d++) {
m->native[d] = (hd - .99) * (rand() % 1000 - rand() % 1000) / 1000; m->native[d] = (hd - .99) * (rand() % 1000 - rand() % 1000) / 1000;
} }
USING_NATIVE_GEOMETRY; USING_NATIVE_GEOMETRY;
#if MAXMDIM >= 4
if(euclid) if(euclid)
m->native[3] = 1; m->native[3] = 1;
else else
m->native = normalize(m->native); m->native = normalize(m->native);
#endif
} }
m->inqueue = false; m->inqueue = false;
@ -416,10 +420,11 @@ EX void buildTorusRug() {
if(!sphere) { if(!sphere) {
/* stereographic projection to get Euclidean conformal torus */ /* stereographic projection to get Euclidean conformal torus */
hp[3] += 1; hp /= (t+1);
hp /= hp[3];
hp /= mx; hp /= mx;
#if MAXMDIM >= 4
hp[3] = 1; hp[3] = 1;
#endif
} }
/* ... in H^3, use inverse Poincare to get hyperbolic conformal torus */ /* ... in H^3, use inverse Poincare to get hyperbolic conformal torus */
@ -690,7 +695,12 @@ EX void preset(rugpoint *m) {
} }
} }
#if MAXMDIM >= 4
if(q>0) m->native = normalize(h); if(q>0) m->native = normalize(h);
#else
if(q>0) m->native = h / q;
#endif
// printf("preset (%d) -> %s\n", q, display(m->native)); // printf("preset (%d) -> %s\n", q, display(m->native));
if(std::isnan(m->native[0]) || std::isnan(m->native[1]) || std::isnan(m->native[2])) if(std::isnan(m->native[0]) || std::isnan(m->native[1]) || std::isnan(m->native[2]))
throw rug_exception(); throw rug_exception();
@ -775,8 +785,12 @@ EX void subdivide() {
rugpoint *mm = addRugpoint(mid(m->h, m2->h), (m->dist+m2->dist)/2); rugpoint *mm = addRugpoint(mid(m->h, m2->h), (m->dist+m2->dist)/2);
halves[make_pair(m, m2)] = mm; halves[make_pair(m, m2)] = mm;
if(!good_shape) { if(!good_shape) {
#if MAXMDIM >= 4
USING_NATIVE_GEOMETRY; USING_NATIVE_GEOMETRY;
mm->native = mid(m->native, m2->native); mm->native = mid(m->native, m2->native);
#else
mm->native = (m->native + m2->native) / 2;
#endif
} }
mm->valid = m->valid && m2->valid; mm->valid = m->valid && m2->valid;
if(mm->valid) qvalid++; if(mm->valid) qvalid++;
@ -995,8 +1009,10 @@ void drawTriangle(triangle& t) {
} }
for(int i=0; i<3; i++) { for(int i=0; i<3; i++) {
#if MAXMDIM >= 4
if(t.m[i]->native[3] != 1) if(t.m[i]->native[3] != 1)
println(hlog, "bad point: ", t.m[i]->native); println(hlog, "bad point: ", t.m[i]->native);
#endif
curvepoint(t.m[i]->native); curvepoint(t.m[i]->native);
tinf.tvertices.push_back(glhr::pointtogl(point3(t.m[i]->x1, t.m[i]->y1, col))); tinf.tvertices.push_back(glhr::pointtogl(point3(t.m[i]->x1, t.m[i]->y1, col)));
} }
@ -1599,8 +1615,10 @@ EX void show() {
} }
else if(uni == 'f') else if(uni == 'f')
pushScreen(showStereo); pushScreen(showStereo);
#if MAXMDIM >= 4
else if(uni == 'n' && !rug::rugged) else if(uni == 'n' && !rug::rugged)
pushScreen(rug_geometry_choice); pushScreen(rug_geometry_choice);
#endif
else if(uni == 'g' && !rug::rugged && CAP_SDL) else if(uni == 'g' && !rug::rugged && CAP_SDL)
rendernogl = !rendernogl; rendernogl = !rendernogl;
else if(uni == 's') { else if(uni == 's') {