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[Geom] Add auxiliary user-data export in TGDMLWrite #20358

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[Geom] Add auxiliary user-data export in TGDMLWrite #20358

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38 changes: 38 additions & 0 deletions geom/gdml/src/TGDMLWrite.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,10 @@ See that function for details.
#include "TGeoElement.h"
#include "TGeoShape.h"
#include "TGeoCompositeShape.h"
#include "TGeoExtension.h"
#include "TGeoOpticalSurface.h"
#include "TMap.h"
#include "TObjString.h"
#include <cstdlib>
#include <string>
#include <map>
Expand Down Expand Up @@ -758,6 +761,41 @@ void TGDMLWrite::ExtractVolumes(TGeoNode *node)
fGdmlE->AddChild(volumeN, childN);
}

// export auxiliary user-data if present (TMap of TObjString->TObjString)
{
TGeoRCExtension *rcext = (TGeoRCExtension *)volume->GetUserExtension();
if (rcext) {
TMap *auxmap = nullptr;
TObject *userObj = rcext->GetUserObject();
if (userObj && userObj->InheritsFrom("TMap")) {
TMap *auxmap = (TMap *)userObj;
TIterator *it = auxmap->MakeIterator();
TObject *k = nullptr;
while (k = it->Next()) {
TObject *valobj = auxmap->GetValue(k);
if (!valobj || !k->InheritsFrom("TObjString") || !valobj->InheritsFrom("TObjString"))
continue;
TObjString *key = (TObjString *)k;
TObjString *val = (TObjString *)valobj;
TString auxtype = key->GetString();
TString auxvalue = val->GetString();
TString auxunit = "";
Int_t pos = auxvalue.Index('*');
if (pos >= 0) {
auxunit = auxvalue(pos + 1, auxvalue.Length());
auxvalue = auxvalue(0, pos);
}
XMLNodePointer_t auxN = fGdmlE->NewChild(nullptr, nullptr, "auxiliary", nullptr);
fGdmlE->NewAttr(auxN, nullptr, "auxtype", auxtype.Data());
fGdmlE->NewAttr(auxN, nullptr, "auxvalue", auxvalue.Data());
if (!auxunit.IsNull())
fGdmlE->NewAttr(auxN, nullptr, "auxunit", auxunit.Data());
fGdmlE->AddChild(volumeN, auxN);
}
}
}
}

fVolCnt++;
// add volume/assembly node into the <structure> node
fGdmlE->AddChild(fStructureNode, volumeN);
Expand Down