@Override
	public void removeLayoutListener(LayoutListener<V, E> listener) {

		Iterator<LayoutListener<V, E>> iterator = listeners.iterator();
		for (; iterator.hasNext();) {
			LayoutListener<V, E> layoutListener = iterator.next();
			if (layoutListener == listener) {
				iterator.remove();
			}
		}
	}
The amount (from 0 to 1.0) by which to condense the vertices of the graph when that
feature is enabled.  The default is .5 (50%).  A value of 1.0 would be fully-condensed
such that all vertices are aligned on the x-axis on the center of the graph.
@return the condense factor
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/layout/AbstractVisualGraphLayout.java