TEveBoxSet* boxset_colisval(Float_t x=0, Float_t y=0, Float_t z=0,
Int_t num=100, Bool_t registerSet=kTRUE)
{
TEveManager::Create();
TRandom r(0);
TEveBoxSet* q = new TEveBoxSet("BoxSet");
q->Reset(TEveBoxSet::kBT_AABox, kTRUE, 64);
for (Int_t i=0; i<num; ++i) {
q->AddBox(r.Uniform(-10, 10), r.Uniform(-10, 10), r.Uniform(-10, 10),
r.Uniform(0.2, 1), r.Uniform(0.2, 1), r.Uniform(0.2, 1));
q->DigitColor(r.Uniform(20, 255), r.Uniform(20, 255),
r.Uniform(20, 255), r.Uniform(20, 255));
}
q->RefitPlex();
TEveTrans& t = q->RefMainTrans();
t.SetPos(x, y, z);
if (registerSet)
{
gEve->AddElement(q);
gEve->Redraw3D(kTRUE);
}
return q;
}
TEveBoxSet*
elliptic_boxset_cones(Float_t x=0, Float_t y=0, Float_t z=0,
Int_t num=100, Bool_t register=kTRUE)
{
TEveManager::Create();
using namespace TMath;
TEveManager::Create();
TEveStraightLineSet* lines = new TEveStraightLineSet("StraightLines");
lines->SetLineColor(kYellow);
lines->SetLineWidth(2);
TRandom r(0);
TEveBoxSet* cones = new TEveBoxSet("EllipticConeSet");
cones->Reset(TEveBoxSet::kBT_EllipticCone, kTRUE, 64);
cones->SetPickable(kTRUE);
Float_t a = 40; // max distance between cones
TEveVector dir, pos;
Float_t theta, phi, height, rad;
for (Int_t i=0; i<num; ++i)
{
theta = r.Uniform(0,TMath::Pi());
phi = r.Uniform (-TMath::Pi(), TMath::Pi());
height = r.Uniform(5, 15);
rad = r.Uniform(3, 5);
dir.Set(Cos(phi)*Cos(theta), Sin(phi)*Cos(theta), Sin(theta));
dir *= height;
pos.Set(r.Uniform(-a,a), r.Uniform(-a, a), r.Uniform(-a, a));
cones->AddEllipticCone(pos, dir, rad, 0.5*rad, r.Uniform(0,360));
cones->DigitColor(r.Uniform(20, 255), r.Uniform(20, 255),
r.Uniform(20, 255), r.Uniform(20, 255));
// draw axis line 30% longer than cone height
TEveVector end = pos + dir*1.3f;
lines->AddLine(pos.fX, pos.fY, pos.fZ, end.fX, end.fY, end.fZ);
}
// by default cone cap not drawn
if (r.Integer(2)>0) cones->SetDrawConeCap(kTRUE);
cones->RefitPlex();
TEveTrans& t = cones->RefMainTrans();
t.SetPos(x, y, z);
gEve->AddElement(cones);
gEve->AddElement(lines);
gEve->Redraw3D(kTRUE);
return cones;
}