Atlas Graphics Group

News

Send me a mail if you have any news to anounce here.

Pictures of real Atlas Events are available from the public page. More events (with Atlantis data) are available from the protected page.

GraXML has obtained award for Most Innovative Java Technology Application in the domain of Scientific Research.

Third meeting on Event Displays for ATLAS - 10 Mar 08 in CERN

Atlantis3D - GraXML Provides 3D View to Atlantis

Projects

Atlantis is an event display for the ATLAS experiment at CERN's Large Hadron Collider. The primary goals of the program are the visual investigation and the understanding of the physics of complete events. Secondary goals are to help develop reconstruction and analysis algorithms, to facilitate debugging during commisioning and to provided a tool for creating pictures and animations for publications, presentations and exhibitions. Atlantis is based on the ALEPH event display DALI. Atlantis is written entirely in Java. JiveXML (event converter) is C++ interface between Atlantis and the Athena ATLAS offline SW framework. The following key principles form the base of the Atlantis visualisation development: Atlantis is fast, Atlantis is intuitive, Atlantis is used for complete ATLAS events.

GraXML is Framework for manipulation and visualisation of geometrical objects in space. Full Framework consist of GraXML Toolkit and several libraries implementing Generic and Geometric Models. GraXML is a Geometric Modeller for handling HEP experiments' Detector Description and Event data. It containes full 3D visualisation of the managed elements. It uses Java3D to create, render and manipulate SceneGraph. Its main source of data comes through XML files, where each Schema represents one Generic Model. Such Generic Model is then a source for the GraXML Geometric Model. Direct access (without XML files) is possible too.

PersInt is a package (for Perspectively Interacting) designed by SaMuSoG (Saclay Muon Software Group SaMuSoG) primarily for the ATLAS collaboration, for visualization of the spectrometer and the reconstructed tracks. This interactive tool is ideal for debugging the reconstruction code and the detector geometry description. Indeed, accurate measurements of the sagitta in a complicated magnetic field configuration requires such a 3-D graphics tool.

VP1 or Virtual Point 1, is an Event Display for the ATLAS experiment at CERN. The aim is to provide a tool useful for the understanding of physics events and help with debugging of software and analysis, as well as provide a modern 3D enabled display for point 1. VP1 runs out of the ATLAS offline software framework, Athena, and thus provides direct access to the same data and algorithms that are used in e.g. reconstruction of physics events. This approach is not only very flexible, but abolishes the need for the development and maintenance of data formats and algorithms shadowing the actual ones . VP1 is based on the C++ GUI toolkit Qt4 and relies on Inventor/OpenGL for 3D graphics. It utilises a flexible plugin architecture for the actual interaction with ATLAS data and algorithms, allowing easy parallel development by multiple contributers.

WebStart

If you have java 1.5 or 1.6 correctly installed, you can run these programs directly from the Web or using javaws command.

Communication

Historic information

Graphics group till 2002.

Other resources

Atlas

  • ...

HEP

  • FreeHEP
  • Open Scientist (An Architecture for Doing Data Analysis)
  • WIRED (World-Wide Web Interactive Remote Event Display)
  • JAS (Java Analysis Studio)

Others
J.Hrivnac, Feb'08