3d:: correct icosahedron

This commit is contained in:
Zeno Rogue 2019-05-11 15:01:21 +02:00
parent bd449f5e0e
commit 2c98f9dcf6
1 changed files with 5 additions and 4 deletions

View File

@ -674,11 +674,12 @@ void make_ball(hpcshape& sh, ld rad, int lev) {
sh.flags |= POLY_TRIANGLES;
hyperpoint tip = xpush0(rad);
hyperpoint atip = xpush0(-rad);
ld z = 63.43 * degree;
for(int i=0; i<5; i++) {
hyperpoint a = cspin(1, 2, (72 * i ) * degree) * spin(1) * tip;
hyperpoint b = cspin(1, 2, (72 * i-72) * degree) * spin(1) * tip;
hyperpoint c = cspin(1, 2, (72 * i+36) * degree) * spin(M_PI-1) * tip;
hyperpoint d = cspin(1, 2, (72 * i-36) * degree) * spin(M_PI-1) * tip;
hyperpoint a = cspin(1, 2, (72 * i ) * degree) * spin(z) * tip;
hyperpoint b = cspin(1, 2, (72 * i-72) * degree) * spin(z) * tip;
hyperpoint c = cspin(1, 2, (72 * i+36) * degree) * spin(M_PI-z) * tip;
hyperpoint d = cspin(1, 2, (72 * i-36) * degree) * spin(M_PI-z) * tip;
balltriangle(tip, a, b, rad, lev);
balltriangle(a, b, c, rad, lev);
balltriangle(b, c, d, rad, lev);