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Code Issues Releases Wiki Activity

improved hemisphere model; nicer handling of ballangle

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Zeno Rogue
2018-10-25 19:58:38 +02:00
parent 9ad39df2c0
commit 804b489ebf
6 changed files with 40 additions and 31 deletions
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24
polygons.cpp
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@@ -187,23 +187,29 @@ bool two_sided_model() {
if(pmodel == mdHyperboloid) return !euclid;
// if(pmodel == mdHemisphere) return true;
if(pmodel == mdDisk) return sphere;
if(pmodel == mdHemisphere) return !euclid;
return false;
}
bool correct_side(const hyperpoint& H) {
int get_side(const hyperpoint& H) {
if(pmodel == mdDisk && sphere) {
double curnorm = H[0]*H[0]+H[1]*H[1]+H[2]*H[2];
double horizon = curnorm / vid.alpha;
return (spherespecial>0) ^ (H[2] <= -horizon);
return (H[2] <= -horizon) ? -1 : 1;
;
}
if(pmodel == mdHyperboloid && hyperbolic) {
ld ball = -vid.ballangle * M_PI / 180;
ld cb = cos(ball), sb = sin(ball);
return (spherespecial > 0) ^ (
sb * H[2] > -cb * H[1]
);
if(pmodel == mdHyperboloid && hyperbolic)
return (conformal::sin_ball * H[2] > -conformal::cos_ball * H[1]) ? -1 : 1;
if(pmodel == mdHemisphere || pmodel == mdHyperboloid) {
hyperpoint res;
applymodel(H, res);
return res[2] < 0 ? -1 : 1;
}
return true;
return 0;
}
bool correct_side(const hyperpoint& H) {
return get_side(H) == spherespecial;
}
void fixpoint(array<float, 3>& hscr, hyperpoint H) {