本文整理汇总了C++中TGeoManager::SetNsegments方法的典型用法代码示例。如果您正苦于以下问题：C++ TGeoManager::SetNsegments方法的具体用法？C++ TGeoManager::SetNsegments怎么用？C++ TGeoManager::SetNsegments使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TGeoManager的用法示例。
在下文中一共展示了TGeoManager::SetNsegments方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: glViewerLOD
void glViewerLOD(Int_t reqNodes = 1000, Bool_t randomDist = kTRUE,
Bool_t reqSpheres = kTRUE, Bool_t reqTubes = kTRUE)
{
TGeoManager * geom = new TGeoManager("LODTest", "GL viewer LOD test");
geom->SetNsegments(4); // Doesn't matter keep low
TGeoMaterial *matEmptySpace = new TGeoMaterial("EmptySpace", 0, 0, 0);
TGeoMaterial *matSolid = new TGeoMaterial("Solid" , .938, 1., 10000.);
TGeoMedium *medEmptySpace = new TGeoMedium("Empty", 1, matEmptySpace);
TGeoMedium *medSolid = new TGeoMedium("Solid", 1, matSolid);
Double_t sizeBase = 20.0;
Double_t worldRadius;
if (randomDist) {
worldRadius = pow(reqNodes,.5)*sizeBase;
} else {
worldRadius = pow(reqNodes,.3)*sizeBase;
}
TGeoVolume *top = geom->MakeBox
("WORLD", medEmptySpace, worldRadius, worldRadius, worldRadius);
geom->SetTopVolume(top);
gRandom->SetSeed();
// Create random number of unique sphere shapes - up to 25% of
// total placed sphere requested
UInt_t volumeCount = gRandom->Integer(reqNodes/4)+1;
TGeoVolume ** volumes = new TGeoVolume[volumeCount];
TGeoVolume * volume;
Double_t dummy;
for (UInt_t i = 0; i < volumeCount; i++) {
char name[128];
sprintf(name, "Volume_%d", i);
// Random volume shape
Int_t type = -1;
if (reqSpheres && reqTubes) {
type = gRandom->Integer(2);
if (type == 1)
type += gRandom->Integer(3);
}
else if(reqSpheres)
type = 0;
else if(reqTubes)
type = 1 + gRandom->Integer(3);
// Random dimensions
Double_t rMin = gRandom->Rndm() * sizeBase;
Double_t rMax = rMin + gRandom->Rndm() * sizeBase * 2.0;
Double_t dz = pow(gRandom->Rndm(),2.0) * sizeBase * 15.0;
Double_t phi1 = gRandom->Rndm() * 90.0;
Double_t phi2 = phi1 + gRandom->Rndm() * 270.0;
// Pick random color (not black)
Int_t color = gRandom->Integer(50);
if (color == kBlack) color += 1;
switch (type) {
case 0: {
// GL viewer only supports solid spheres (0. inner radius)
volumes[i] = geom->MakeSphere(name, medSolid, 0., rMax);
printf("Volume %d : Color %d, Sphere, Radius %f\n", i, color, rMax);
break;
}
case 1: {
volumes[i] = geom->MakeTube(name, medSolid, rMin, rMax, dz);
printf("Volume %d : Color %d, Tube, Inner Radius %f, "
"Outer Radius %f, Length %f\n",
i, color, rMin, rMax, dz);
break;
}
case 2: {
volumes[i] = geom->MakeTubs(name, medSolid, rMin, rMax, dz,
phi1, phi2);
printf("Volume %d : Color %d, Tube Seg, Inner Radius %f, "
"Outer Radius %f, Length %f, Phi1 %f, Phi2 %f\n",
i, color, rMin, rMax, dz, phi1, phi2);
break;
}
case 3: {
Double_t n1[3], n2[3];
n1[0] = gRandom->Rndm()*.5;
n1[1] = gRandom->Rndm()*.5; n1[2] = -1.0 + gRandom->Rndm()*.5;
n2[0] = gRandom->Rndm()*.5;
n2[1] = gRandom->Rndm()*.5; n2[2] = 1.0 - gRandom->Rndm()*.5;
volumes[i] = geom->MakeCtub(name, medSolid, rMin, rMax, dz,
phi1, phi2, n1[0], n1[1], n1[2],
n2[0], n2[1], n2[2]);
printf("Volume %d : Color %d, Cut Tube, Inner Radius %f, "
"Outer Radius %f, Length %f, Phi1 %f, Phi2 %f, "
"n1 (%f,%f,%f), n2 (%f,%f,%f)\n",
i, color, rMin, rMax, dz, phi1, phi2,
n1[0], n1[1], n1[2], n2[0], n2[1], n2[2]);
break;
}
default: {
//.........这里部分代码省略.........
示例2: nucleus
void nucleus(Int_t nProtons = 40,Int_t nNeutrons = 60)
{
Double_t NeutronRadius = 60,
ProtonRadius = 60,
NucleusRadius,
distance = 60;
Double_t vol = nProtons + nNeutrons;
vol = 3 * vol / (4 * TMath::Pi());
NucleusRadius = distance * TMath::Power(vol, 1./3.);
// cout << "NucleusRadius: " << NucleusRadius << endl;
TGeoManager * geom = new TGeoManager("nucleus", "Model of a nucleus");
geom->SetNsegments(40);
TGeoMaterial *matEmptySpace = new TGeoMaterial("EmptySpace", 0, 0, 0);
TGeoMaterial *matProton = new TGeoMaterial("Proton" , .938, 1., 10000.);
TGeoMaterial *matNeutron = new TGeoMaterial("Neutron" , .935, 0., 10000.);
TGeoMedium *EmptySpace = new TGeoMedium("Empty", 1, matEmptySpace);
TGeoMedium *Proton = new TGeoMedium("Proton", 1, matProton);
TGeoMedium *Neutron = new TGeoMedium("Neutron",1, matNeutron);
// the space where the nucleus lives (top container volume)
Double_t worldx = 200.;
Double_t worldy = 200.;
Double_t worldz = 200.;
TGeoVolume *top = geom->MakeBox("WORLD", EmptySpace, worldx, worldy, worldz);
geom->SetTopVolume(top);
TGeoVolume * proton = geom->MakeSphere("proton", Proton, 0., ProtonRadius);
TGeoVolume * neutron = geom->MakeSphere("neutron", Neutron, 0., NeutronRadius);
proton->SetLineColor(kRed);
neutron->SetLineColor(kBlue);
Double_t x, y, z, dummy;
Int_t i = 0;
while ( i< nProtons) {
gRandom->Rannor(x, y);
gRandom->Rannor(z,dummy);
if ( TMath::Sqrt(x*x + y*y + z*z) < 1) {
x = (2 * x - 1) * NucleusRadius;
y = (2 * y - 1) * NucleusRadius;
z = (2 * z - 1) * NucleusRadius;
top->AddNode(proton, i, new TGeoTranslation(x, y, z));
i++;
}
}
i = 0;
while ( i < nNeutrons) {
gRandom->Rannor(x, y);
gRandom->Rannor(z,dummy);
if ( TMath::Sqrt(x*x + y*y + z*z) < 1) {
x = (2 * x - 1) * NucleusRadius;
y = (2 * y - 1) * NucleusRadius;
z = (2 * z - 1) * NucleusRadius;
top->AddNode(neutron, i + nProtons, new TGeoTranslation(x, y, z));
i++;
}
}
geom->CloseGeometry();
geom->SetVisLevel(4);
top->Draw("ogl");
}