本文整理汇总了C++中TGeoVolume::Capacity方法的典型用法代码示例。如果您正苦于以下问题：C++ TGeoVolume::Capacity方法的具体用法？C++ TGeoVolume::Capacity怎么用？C++ TGeoVolume::Capacity使用的例子？那么, 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TGeoVolume的用法示例。
在下文中一共展示了TGeoVolume::Capacity方法的1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: get_mass
//____________________________________________________________________________
void get_mass(Double_t length_unit, Double_t density_unit)
{
//tables of Z and A
const Int_t lcin_Z = 150;
const Int_t lcin_A = 300;
// calc unit conversion factors
Double_t density_unit_to_SI = density_unit / units::kg_m3;
Double_t length_unit_to_SI = length_unit / units::m;
Double_t volume_unit_to_SI = TMath::Power(length_unit_to_SI, 3.);
#ifdef _debug_
cout << "Input density unit --> kg/m^3 : x" << density_unit_to_SI << endl;
cout << "Input length unit --> m : x" << length_unit_to_SI << endl;
#endif
// get materials in geometry
TList *matlist = gGeoManager->GetListOfMaterials();
if (!matlist ) {
cout << "Null list of materials!" << endl;
return;
} else {
#ifdef _debug_
matlist->Print();
#endif
}
int max_idx = 0; // number of mixtures in geometry
Int_t nmat = matlist->GetEntries();
for( Int_t imat = 0; imat < nmat; imat++ )
{
Int_t idx = gGeoManager->GetMaterial(imat)->GetIndex();
max_idx = TMath::Max(max_idx, idx);
}
//check if material index is unique
Int_t * checkindex = new Int_t[max_idx+1];
for( Int_t i = 0; i<max_idx+1; i++ ) checkindex[i] = 0;
for( Int_t imat = 0; imat < nmat; imat++ )
{
if( !checkindex[imat] ) checkindex[imat] = 1;
else
{
cout << "material index is not unique" << endl;
return;
}
}
#ifdef _debug_
cout << "max_idx = " << max_idx << endl;
cout << "nmat = " << nmat << endl;
#endif
TGeoVolume * topvol = gGeoManager->GetTopVolume(); //get top volume
if (!topvol) {
cout << "volume does not exist" << endl;
return;
}
TGeoIterator NodeIter(topvol);
TGeoNode *node;
NodeIter.SetType(0); // include all daughters
Double_t * volume = new Double_t[max_idx+1];
Double_t * mass = new Double_t[max_idx+1];
for( Int_t i = 0; i<max_idx+1; i++ ){ volume[i]=0.; mass[i]=0.; } // IMPORTANT! force empty arrays, allows repated calls without ending ROOT session
volume[ topvol->GetMaterial()->GetIndex() ] = topvol->Capacity() * volume_unit_to_SI; //iterator does not include topvolume
while ( (node=NodeIter()) )
{
Int_t momidx = node->GetMotherVolume()->GetMaterial()->GetIndex() ;
Int_t idx = node->GetVolume() ->GetMaterial()->GetIndex() ;
Double_t node_vol = node->GetVolume()->Capacity() * volume_unit_to_SI;
volume[ momidx ] -= node_vol; //substract subvolume from mother
volume[ idx ] += node_vol;
}
Double_t larr_MassIsotopes[lcin_Z][lcin_A] = {0.}; //[Z][A], no map in pure ROOT
Double_t larr_VolumeIsotopes[lcin_Z][lcin_A] = {0.}; //[Z][A], no map in pure ROOT
for( Int_t i=0; i<gGeoManager->GetListOfMaterials()->GetEntries(); i++ )
{
TGeoMaterial *lgeo_Mat = gGeoManager->GetMaterial(i);
Int_t idx = gGeoManager->GetMaterial(i)->GetIndex();
if( lgeo_Mat->IsMixture() )
{
TGeoMixture * lgeo_Mix = dynamic_cast <TGeoMixture*> ( lgeo_Mat );
Int_t lint_Nelements = lgeo_Mix->GetNelements();
for ( Int_t j=0; j<lint_Nelements; j++)
{
Int_t lint_Z = TMath::Nint( (Double_t) lgeo_Mix->GetZmixt()[j] );
Int_t lint_A = TMath::Nint( (Double_t) lgeo_Mix->GetAmixt()[j] );
Double_t ldou_Fraction = lgeo_Mix->GetWmixt()[j];
//.........这里部分代码省略.........