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inverse tessellation operators

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Zeno Rogue
2020-07-12 20:52:32 +02:00
parent db96f3499c
commit 1f1e7d9bbf
13 changed files with 478 additions and 76 deletions
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44
geometry2.cpp
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@@ -501,6 +501,37 @@ EX hyperpoint randomPointIn(int t) {
EX hyperpoint get_corner_position(cell *c, int cid, ld cf IS(3)) {
#if CAP_GP
if(GOLDBERG) return gp::get_corner_position(c, cid, cf);
if(UNTRUNCATED) {
cell *c1 = gp::get_mapped(c);
cellwalker cw(c1, cid*2);
if(!gp::untruncated_shift(c)) cw--;
hyperpoint h = UIU(nearcorner(c1, cw.spin));
return mid_at_actual(h, 3/cf);
}
if(UNRECTIFIED) {
cell *c1 = gp::get_mapped(c);
hyperpoint h = UIU(nearcorner(c1, cid));
return mid_at_actual(h, 3/cf);
}
if(WARPED) {
int sh = gp::untruncated_shift(c);
cell *c1 = gp::get_mapped(c);
if(sh == 2) {
cellwalker cw(c, cid);
hyperpoint h1 = UIU(tC0(currentmap->adj(c1, cid)));
cw--;
hyperpoint h2 = UIU(tC0(currentmap->adj(c1, cw.spin)));
hyperpoint h = mid(h1, h2);
return mid_at_actual(h, 3/cf);
}
else {
cellwalker cw(c1, cid*2);
if(!gp::untruncated_shift(c)) cw--;
hyperpoint h = UIU(nearcorner(c1, cw.spin));
h = mid(h, C0);
return mid_at_actual(h, 3/cf);
}
}
#endif
#if CAP_IRR
if(IRREGULAR) {
@@ -560,7 +591,7 @@ EX bool approx_nearcorner = false;
/** /brief get the coordinates of the center of c->move(i) */
EX hyperpoint nearcorner(cell *c, int i) {
if(GOLDBERG) {
if(GOLDBERG_INV) {
cellwalker cw(c, i);
cw += wstep;
transmatrix cwm = currentmap->adj(c, i);
@@ -657,14 +688,19 @@ EX hyperpoint nearcorner(cell *c, int i) {
EX hyperpoint farcorner(cell *c, int i, int which) {
#if CAP_GP
if(GOLDBERG) {
if(GOLDBERG_INV) {
cellwalker cw(c, i);
cw += wstep;
if(!cw.mirrored) cw += (which?-1:2);
else cw += (which?2:-1);
transmatrix cwm = currentmap->adj(c, i);
auto li1 = gp::get_local_info(cw.at);
return cwm * get_corner_position(li1, cw.spin);
if(gp::variation_for(gp::param) == eVariation::goldberg) {
auto li1 = gp::get_local_info(cw.at);
return cwm * get_corner_position(li1, cw.spin);
}
else {
return cwm * get_corner_position(cw.at, cw.spin, 3);
}
}
#endif
#if CAP_IRR