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geomBrahms.C File Reference
Tutorials » Geometry tutorials

Detailed Description

Script drawing a detector geometry (here BRAHMS).

by default the geometry is drawn using the GL viewer Using the TBrowser, you can select other components if the file containing the geometry is not found in the local directory, it is automatically read from the ROOT web site.

void geomBrahms() {
TGeoManager::Import("http://root.cern.ch/files/brahms.root");
gGeoManager->GetVolume("CAVE")->Draw("ogl");
new TBrowser;
}
gGeoManager
R__EXTERN TGeoManager * gGeoManager
Definition TGeoManager.h:608
TBrowser
Using a TBrowser one can browse all ROOT objects.
Definition TBrowser.h:37
TGeoManager::Import
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:4094
TGeoManager::GetVolume
TGeoVolume * GetVolume(const char *name) const
Search for a named volume. All trailing blanks stripped.
Definition TGeoManager.cxx:2940
TGeoVolume::Draw
void Draw(Option_t *option="") override
draw top volume according to option
Definition TGeoVolume.cxx:1206
Author
Rene Brun

Definition in file geomBrahms.C.