Update of the BESIII Event Display System

The BESIII spectrometer is located at the Beijing Electron-Positron Collider (BEPCII). Recently, the endcap parts of the Time-Of-Flight system (TOF) have been upgraded and consequently, an upgrade of the BESIII visualization software (BesVis) is necessary. The Event Display visualizes particle interactions in the detector and plays an important role for the data acquisition system (DAQ), reconstruction algorithms tuning and physics analyses. The graphical interface of Event Display is based on ROOT GUI. The detector description is stored in GDML les and is converted into the ROOT geometry system.