I am trying to change some settings on the Ecal geometry (crystal spacing, etc). However, I cannot seem to find the instructions for re-generating the geometry. The only instructions I have from confluence are at:

The file I am changing is the HPSEcal3Conveter.java file. If I make alterations here, how do I generate a new lcdd/compact.xml/gdml? It seems all of the instructions assume that I begin with the compact.xml or lcdd. 

-Holly