ROOT_528-00b_version: tutorials/eve/geom

00001 // @(#)root/eve:$Id: geom_lhcb.C 32343 2010-02-15 14:39:51Z matevz $
00002 // Author: Matevz Tadel
00003 
00004 // Shows CMS geometry.
00005 
00006 void geom_lhcb()
00007 {
00008    TEveManager::Create();
00009 
00010    TFile::SetCacheFileDir(".");
00011    gGeoManager = gEve->GetGeometry("http://root.cern.ch/files/lhcbfull.root");
00012    gGeoManager->DefaultColors();
00013 
00014    TEveGeoTopNode* tn = new TEveGeoTopNode(gGeoManager, gGeoManager->GetTopNode());
00015    tn->SetVisLevel(4);
00016    gEve->AddGlobalElement(tn);
00017 
00018    gEve->FullRedraw3D(kTRUE);
00019 
00020    // EClipType not exported to CINT (see TGLUtil.h):
00021    // 0 - no clip, 1 - clip plane, 2 - clip box
00022    TGLViewer *v = gEve->GetDefaultGLViewer();
00023    v->GetClipSet()->SetClipType(1);
00024    v->ColorSet().Background().SetColor(kMagenta+4);
00025    v->SetGuideState(TGLUtil::kAxesEdge, kTRUE, kFALSE, 0);
00026    v->RefreshPadEditor(v);
00027 
00028    v->CurrentCamera().RotateRad(-1.2, 0.5);
00029    v->DoDraw();
00030 }