// Demonstates usage of geometry aliases.
// Merge ALICE ITS with ATLAS MUON.
void geom_alias()
{
TEveManager::Create();
gEve->RegisterGeometryAlias("ALICE", "http://root.cern.ch/files/alice.root");
gEve->RegisterGeometryAlias("ATLAS", "http://root.cern.ch/files/atlas.root");
gGeoManager = gEve->GetGeometryByAlias("ALICE");
TGeoNode* node1 = gGeoManager->GetTopVolume()->FindNode("ITSV_1");
TEveGeoTopNode* its = new TEveGeoTopNode(gGeoManager, node1);
gEve->AddGlobalElement(its);
gGeoManager = gEve->GetGeometryByAlias("ATLAS");
TGeoNode* node2 = gGeoManager->GetTopVolume()->FindNode("OUTE_1");
TEveGeoTopNode* atlas = new TEveGeoTopNode(gGeoManager, node2);
gEve->AddGlobalElement(atlas);
gEve->FullRedraw3D(kTRUE);
// EClipType not exported to CINT (see TGLUtil.h):
// 0 - no clip, 1 - clip plane, 2 - clip box
gEve->GetGLViewer()->GetClipSet()->SetClipType(2);
gEve->GetGLViewer()->RefreshPadEditor(gEve->GetGLViewer());
}