GDML to ROOT conversion

Newbie
1

Hi All

I have a GDML file (let’s call it test.gdml) which I want to convert to ROOT i.e. test.root.
I use

TFile* f = new TFile("test.root","recreate");

TGeoManager::Import("test.gdml");

f->Write();

f->Close();

This gives me test.root which looked OK when viewed with gGeoManager->GetTopVolume()->Draw("ogl");

But the size of test.root is 419 bytes compared to 25 MB of test.gdml.

So, I wonder if the conversion, here, was only limited to visualisation or a full conversion. I need to generate events in the test.root geometry (which needs .root file and not .gdml), so will the test.root created this way work?

Thank You

2

Hi,

After this operation you can do gGeoManager->Export("test.root");. You do not need to create TFile instance for that.

Regards,
Sergey

3

Oh ok. I tried and it worked I think. I see different directories in the test.root file now which contains Materials and other details of the geometry. Thank You very much.