src/main/java/com/mxgraph/swing/mxGraphComponent.java
protected boolean isCellDisplayable(Object cell)
		{
			return cell != graph.getView().getCurrentRoot()
					&& cell != graph.getModel().getRoot();
		}
/**
		 * Returns true if the given cell is not the current root or the root in
		 * the model. This can be overridden to not render certain cells in the
		 * graph display.
		 */
Returns true if the given cell is not the current root or the root in
the model. This can be overridden to not render certain cells in the
graph display.
Returns true if the given cell is not the current root or the root in the model . This can be overridden to not render certain cells in the graph display .
protected boolean isCellDisplayable(Object cell)
		{
			return cell != graph.getView().getCurrentRoot()
					&& cell != graph.getModel().getRoot();
		}
protected boolean isCellDisplayable ( Object cell ) { return cell != graph . getView ( ) . getCurrentRoot ( ) && cell != graph . getModel ( ) . getRoot ( ) ; }
Returns true if the given cell is not the current root or the root in
 the model.
Returns true if the given cell is not the current root or the root in the model .