Converting to LCDD or HepRep using GeomConverter

Overview

The SLIC simulator package uses a low-level XML data format while the reconstruction uses a smaller, more targetted format called the "compact description". Using a compact geometry in the simulator requires converting it to LCDD first.

Building and Running GeomConverter

Follow the instructions in Building+org.lcsim+software to build the GeomConverter package.
Run the application
```
maven run
```
This command displays a simple GUI for running the application where the target format can be selected along with the Input and Output files.

Building and Running a GeomConverter distribution

Go to the GeomConverter directory and build a distribution.
```
maven dist
```
Unzip the distribution from one directory below the current one. (This example has a hardcoded version number.)
```
cd ..
tar -zxvf GeomConverter/target/GeomConverter-0.3.tar.gz
```

Run the compact to LCDD converter using the script.

GeomConverter-0.3/bin/GeomConverter compact.xml det.lcdd

Command Syntax

The full syntax for running GeomConverter is

GeomConverter-0.3/bin/GeomConverter [-o format] [<infile> [<outfile>]]

If no output file is specified the GUI will be displayed. If no format is given the format will be guessed based on the output file.

Running in SLIC

The output LCDD file det.lcdd can be used as input to SLIC, which might look like this.

slic -g det.lcdd -z -n

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