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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.
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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).
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cvs update -PdA
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GeomConverter
You will also need to checkout and build the GeomConverter project. Here are the quick build instructions.
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cvs -d :pserver:anonymous@cvs.freehep.org:/cvs/lcd co GeomConverter
cd GeomConverter
mvn clean install
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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).
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export DETECTOR=sdjan03
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The DETECTOR variable is used for all make commands that use a single detector.
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If you are performing one action for a number of detectors sequentially you can also define the detector
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Build the zip file locally for the current DETECTOR. The zip Build zip file locally for single detector. The LCDD file will be placed at detectors/$DETECTOR.lcddzip
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make zip DETECTOR=sdjan03
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Build Create LCDD file for single detectorDETECTOR. The LCDD file will be placed at detectors/$DETECTOR/$DETECTOR.lcdd
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make lcdd DETECTOR=sdjan03 |
Create HepRep file for DETECTOR. The LCDD file will be placed at *detectors/$DETECTOR/detector.heprep
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make heprep
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Build the LCDD file and zip file for single local detectorDETECTOR.
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make build DETECTOR=sdjan03
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Remake the taglist and update to WWW (if on SLAC Linux).
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make zip_all |
Update single detector DETECTOR's zip file to lcsim WWW from local copy, if needed.
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make update DETECTOR=sdjan03 |
To make a new detector from the detectors/template files, first set DETECTOR equal to a new detector name.
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export DETECTOR=mynewdet
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Then execute this command to create the directory structure and blank compact.xml file.
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make new
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Custom Detectors
You can configure org.lcsim to use your own custom detector configurations using the conditions system. Basically, . 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. It is possible to point Point org.lcsim at to a detector from your local LCDetectors copy with an alias, similar to the following.
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Refer to the Conditions Database Overview writeup under "Detector Alias File" for additional details about using custom detectors.