The LCDD geometry needs to be dumped to plain GDML to be loaded by ROOT.
Create the script GDMLROOT.py and put it in $ROOTSYS/gdml. It should contain the following codeYou can use a script similar to the following to load a plain GDML file into ROOT.
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import sys import xml.sax import ROOT import ROOTBinding import GDMLContentHandler ROOT.gSystem.Loadvoid gdmlTest() { char* testfile="./test.gdml"; gSystem->Load("libGeom"); gdmlhandler = GDMLContentHandler.GDMLContentHandler(ROOTBinding.ROOTBinding()) filename = 'test.gdml' if sys.argv.__len__() > 1: gSystem->Load("libGdml"); filename = sys.argv[1] xml.sax.parse(filename, gdmlhandler) geomgr = ROOT.gGeoManager geomgr.SetTopVolume(gdmlhandler.WorldVolume()) geomgr.CloseGeometry() geomgr.DefaultColors() geomgr.SetExplodedView(1) geomgr.SetBombFactors(5.0,5.0,5.0,5.0) gdmlhandler.WorldVolume().Draw("ogl") |
This command takes a GDML file as its argument. Otherwise, it uses the default of test.gdml.
...
TGeoManager::Import(testfile);
gGeoManager->GetTopVolume()->Draw("ogl");
}
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This command should display the ROOT OpenGL viewer with the geometry from the test.gdml file.