question: private final void resetDTX ( AffineTransform at ) { fsref = null ; dtx = at ; invdtx = null ; if ( ! dtx . isIdentity ( ) ) { try { invdtx = dtx . createInverse ( ) ; } catch ( NoninvertibleTransformException e ) { } } if ( gti != null ) { gti . strikesRef = null ; } }
target:  Change the dtx for the strike refs we use.  Keeps a reference to the at.  At must not contain translation. Called by setRenderTransform, setDTX, initFontData.