Physics Contents of the Detector specific Displays

This page describes the detector specific displays, ie., which physics objects are presently represented in the different Drawers (XxxGra/XxxGraDetDrawers and XxxGra/XxxGraEvtDrawers).

As described in the Glossary and Basic Structure chapter, the Drawers are the building blocks of any Observer, hence of any BaBar Graphics Application.

By default, the released GraDisplay module and GraDisplayApp application include all presently available GraDet- and GraEvtDrawers, from any XxxGra. Some detector specific displays can be ignored using gmake options when building the GraDisplayApp application. No "Selection Observer" (GraSelDrawer) is defined by default.

More specific modules and applications are defined in the XxxGra packages. They can be built and run as GraDisplayApp. Unlike GraDisplayApp, the detector specific binaries, bin/$BFARCH/xxxGraApp, are no more included in the releases.
Once the application is launched, you have access to the standard graphics actions . The control panels may have slightly different menus, depending on the application you run.

Contents

TrkGra

TrkGraApp runs the Tracking Software-specific BaBar event display
Note that TrkGra was not introduced until release 5.4.0.

TrkGra includes representations for most forms of "tracks." This includes TrkRecoTrk (DchTrk, SvtTrk, DefaultTrk) and GTrack (charged GTrack's and neutral GNTrack's) classes. The TrkGra package is included from the other XxxGra packages, so that they can display tracks as well as detector-specific elements. Any projections defined in the GraModel package are appended to the valid projections list in TrkGra.

SvtGra

SvtGraApp runs the Silicon Vertex Detector-specific BaBar event display
Note that TrkGra was not introduced until release 5.4.0.

It is a 3-dimensional graphics display program allowing the user to view event data such as (generated or reconstructed) hits and tracks, and detector geometry for the Silicon Vertex Detector.

DchGra

DchGraApp runs the Drift Chamber-specific BaBar event display
Note that TrkGra was not introduced until release 5.4.0.

It is a 3-dimensional graphics display program allowing the user to view event data such as (generated or reconstructed) hits and tracks, and detector geometry for the Drift Chamber. This includes DchTrk's, DchHit's, DchHitOnTrk's, DchGHit's for specific data representations (in addition to those included by default through TrkGra and GraBase) and barrel, endcap, or both for detector geometry. Wires can also be displayed. Hits on tracks are represented as cylinders with radii obtained from drift distance.

Projections are inherited from GraModel and TrkGra - there are currently no special projections for DchGra.

DrcGra

DrcGraApp runs the DIRC-specific BaBar event display.
Note that TrkGra was not introduced until release 5.4.0.

EmcGra

EmcGraApp runs the Electromagnetic Calorimeter-specific BaBar event display.
Note that TrkGra was not introduced until release 5.4.0.

EmcGraApp allows the user access to all of the available Emc-specific viewable classes.

IfrGra

IfrGraApp runs the Ifr-specific BaBar event display.
Note that TrkGra was not introduced until release 5.4.0.

Detail Features of IfrGra :
(control panel operation: GraModule->_IfrObs->edit->"_Ifr Geom" or "_Ifr Data")