2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/31645The paper presents the "Event Display" package for the STAR offline production as a special visualization tool to debug the reconstruction code. This can be achieved if an author of the algorithm / code may build his/her own custom Event Display alone from the base software blocks and re-used some well-designed, easy to learn user-friendly patterns. For STAR offline production Event Display ROOT with Qt lower level interface was chosen as the base tools.3 pages, 4 figures, Computing in High Energy Physics, CHEP2003, La Jolla California, USA, March 24-28Human-Computer InteractionGraphicsI.3.7; D.1.5text