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- Use of JAS3/JAIDA in experiments: GLAST, BaBar, etc.
- New developments and improvements in FreeHEP and JAS3
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Very preliminary abstract:
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JAIDA, JAS3, WIRED4 and the AIDA tag library - experience and new developments
JAIDA is a Java implementation of the Abstract Interfaces for Data Analysis (AIDA) ; it and is part of the FreeHEP library. JAIDA allows Java programmers to quickly and easily create histograms, scatter plots and tuples, perform fits, view plots and store and retrieve analysis objects from files. JAIDA can be used either in a non-graphical environment ( for batch processing ) or with a GUI to be used just to display plots. In addition files written with JAIDA adhere to the AIDA IO standards and can be read by any AIDA compliant analysis system. By using the AIDA "C++ to Java" adapter (AIDAJNI), JAIDA can also be used from any C++ program. JAIDA is used internally by JAS3 which provides a full featured GUI in addition to the above functionalityJAIDA reads and writes AIDA compliant files and can access data from ROOT, HBOOK/PAW or SQL databases. Access from C++ uses the AIDAJNI adapter. JAIDA includes JMinuit, a complete port of Minuit to Java. JAS3 uses JAIDA providing a full featured GUI.
WIRED4 is a generic Event Display displaying 2D/3D views of HepRep events. As plugin module in JAS3 it has full interactivity, such as scaling, rotation and hiding. Recent extensions handle picking of elements to show detailed information and interactive cuts to hide details.
The AIDA tag library (AIDATLD) is an open source suite of custom tags that provide access to AIDA functionality JAIDA from J2EE applications and JSP pages. It provides easy access to dynamically creating can dynamically create high quality physics and astronomy plots , as well as and providing access to histograms and Ntuples stored in any AIDA store (which includes , including ROOT files via rootd or xrootd)(x)rootd, from web applications.
This software is currently used by several experiments and collaborations, including BaBarincluding BaBar, GLAST, and Geant4. Experience of using AIDATLD, JAIDA, and JAS3 in experiments, as well as description of this software and new developments will be presented in the talk. In particular, a wide ranging suite of web applications developed using these tools for the GLAST experiment will be described.