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1 /// \file
2 /// \ingroup tutorial_geom
3 /// Script drawing a detector geometry (here BRAHMS).
4 ///
5 /// by default the geometry is drawn using the GL viewer
6 /// Using the TBrowser, you can select other components
7 /// if the file containing the geometry is not found in the local
8 /// directory, it is automatically read from the ROOT web site.
9 ///
10 /// \image html geom_geomBrahms.png width=800px
11 /// \macro_code
12 ///
13 /// \author Rene Brun
15 void geomBrahms() {
16  TGeoManager::Import("http://root.cern.ch/files/brahms.root");
17  gGeoManager->GetVolume("CAVE")->Draw("ogl");
18  new TBrowser;
19 }
Using a TBrowser one can browse all ROOT objects.
Definition: TBrowser.h:37
R__EXTERN TGeoManager * gGeoManager
Definition: TGeoManager.h:602
TGeoVolume * GetVolume(const char *name) const
Search for a named volume. All trailing blanks stripped.
Definition: TGeoManager.cxx:2710
virtual void Draw(Option_t *option="")
draw top volume according to option
Definition: TGeoVolume.cxx:1146
static TGeoManager * Import(const char *filename, const char *name="", Option_t *option="")
static function Import a geometry from a gdml or ROOT file
Definition: TGeoManager.cxx:3817