question: private boolean imageOutline ( DefaultMutableTreeNode node ) { boolean isOutline = false ; if ( node != null ) { DefaultMutableTreeNode parentNode = ( DefaultMutableTreeNode ) node . getParent ( ) ; if ( parentNode != null ) { if ( parentNode . getUserObject ( ) instanceof RasterSymbolizer ) { isOutline = true ; } } } return isOutline ; }
target:  Check to see if symbolizer is an image outline.