Working with geometries

Changes in compact.xml

If you want to make changes in the detector design, edit “compact.xml”, and then run the converters:

JAVA_OPTS="-Xms2048m -Xmx2048m"
GCONVERTER=lcsim/detector-framework/target/lcsim-detector-framework-3.1.6-SNAPSHOT-bin.jar
GEOM="mydetector" # name of your detector
java $JAVA_OPTS -jar $GCONVERTER -o lcdd compact.xml $GEOM.lcdd
slic -g ${GEOM}.lcdd  -G ${GEOM}.gdml
echo "heprep compact.xml.."
java $JAVA_OPTS -jar $GCONVERTER -o heprep compact.xml $GEOM.heprep
echo "pandora compact.xml.."
java $JAVA_OPTS -jar $GCONVERTER -o pandora compact.xml $GEOM.pandora
java $JAVA_OPTS -jar $GCONVERTER -o html compact.xml ${GEOM}.html

where “${GEOM}” is the name of the detector geometry. Next, check that you do not have overlapping volumes. Run ROOT with the commands:

TGeoManager::Import("mydetector.gdml");
gGeoManager->ViewLeaves(true);
gGeoManager->ls("All");
gGeoManager->CheckOverlaps(0.1); //0.1 tolerance or better!
gGeoManager->PrintOverlaps();
gGeoManager->GetTopVolume()->Draw("ogl");

If you see that some volumes overlap, come back to “compact.xml” and make corrections.

Pandora PFA

All information required by Pandora algorithm is stored in the file with the extension “.pandora”. This file is created using GeoConvertor, which reads CalorimeterCalibration.properties file. In particular, it reads:

  • mipEnergy
  • mipSigma
  • mipCut
  • timeCut

The sampling fractions are taken from the detector directory called “SamplingFractions”. Here files look as this:

BeamCal.properties*
EcalBarrel.properties*
EcalEndcap.properties*
HcalBarrel.properties*
HcalEndcap.properties*
LumiCal.properties*
MuonBarrel.properties*
MuonEndcap.properties*
README*

Look at the file:

lcsim/detector-framework/src/main/java/org/lcsim/geometry/compact/converter/pandora/Main.java

Sergei Chekanov 2017/04/12 21:58

hepsim/dev_compactxml.txt · Last modified: 2017/09/23 19:07 by hepsim17
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