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LCDetectors contains detector data for the org.lcsim framework. Each detector has a directory in the detectors directory of LCDetectors with . This directory contains a compact description, various properties files, an LCDD file, and other detector data. These directories are zipped and placed in canonical locations on the LCSIM website. The org.lcsim conditions system can download the zip files from the WWW based on the tag in the LCIO file. This information is used for detector description in the reconstruction framework.

LCSIM WWW

LCDetectors is periodically replicated to the org.lcsim website.

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A list of all the current detector tags can be downloaded from http://www.lcsim.org/detectors/taglist.txt.

Getting LCDetectors from CVS

LCDetectors is kept at the SLAC CVS. Instructions to checkout of CVS.

Code Block
cvs login -d :pserver:anonymous@cvs.freehep.org:/cvs/lcd
cvs co LCDetectors

To update an existing installation as new detectors are added you will need to specify that new directories should be built (-d), old ones should be pruned (-P) and any tags should be reset (-A).

Code Block

cvs update -PdA

GeomConverter

You will also need to checkout and build the GeomConverter project. Here are the quick build instructions.

No Format

cvs -d :pserver:anonymous@cvs.freehep.org:/cvs/lcd co GeomConverter
cd GeomConverter
mvn clean install

You will also need the the Maven 2 build tool.

Build Commands

The following instructions assume that the current directory is LCDetectors checkout dir.

It also assumes that First, start by setting the name of the detector being you are working with is sdjan03. Replace this name with whatever detector you are working on.in the environment (bash).

No Format

export DETECTOR=sdjan03

The DETECTOR variable is used for all make commands that use a single detector.

Tip
titleHandy Hint

If you are performing one action for a number of detectors sequentially you can also define the detector
directly on the command line, e.g.

Code Block

make [target] DETECTOR=sdjan03

Build the zip file locally for the current DETECTOR. The zip file will be placed at detectors/$DETECTOR.zip

Code Block

make zip

Create LCDD file for DETECTOR. The LCDD file will be placed at detectors/$DETECTOR/$DETECTOR.lcdd

Code Block

make lcdd

Create HepRep file for DETECTOR. The LCDD file will be placed at *detectors/$DETECTOR/detector.heprep

Code Block

make heprep

Build the LCDD file and zip file for DETECTOR.

Code Block

make build

Remake the taglist and update to WWW (if on SLAC Linux).

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Rebuild all the detectors in place.

Code Block
make build_all

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Code Block

make build_detector DETECTOR=sdjan03

Update the WWW with new detectors.

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Code Block
make cvs_update

Update all the detectors on lcsim WWW from your local copies.

Code Block
make detectorsupdate_updateall

Make all the LCDD files locally.

Code Block
make detectorslcdd_lcddall

Make all the zip files locally.

Code Block
make detectorszip_zipall

Update single detector DETECTOR's zip file to lcsim WWW from local copy, if needed.

Code Block
make detector_update DETECTOR=sdjan03

To make a new detector from the detectors/template files, first set DETECTOR equal to a new detector nameBuild zip file locally for single detector.

Code Block
makeexport detector_zip DETECTOR=sdjan03mynewdet

Build LCDD file for single detectorThen execute this command to create the directory structure and blank compact.xml file.

Code Block
make detector_lcdd DETECTOR=sdjan03
new

Custom Detectors

You can configure org.lcsim to use your own custom detector configurations. The org.lcsim conditions system needs to know how to translate from the tag in the LCIO file to a zip file or directory containing the detector information. Point org.lcsim to a detector from your local LCDetectors copy with an alias, similar to the followingBuild the LCDD file and zip file for single local detector.

Code Block
make build_detector
sdjan03: file:/my/LCDetectors/detectors/sdjan03/

Refer to the Conditions Database Overview writeup under "Detector Alias File" for additional details about using custom detectors.