public List<Integer> getRowOffsets() {
		ArrayList<Integer> list = new ArrayList<>();
		for (Row<V> row : rowsByIndex.values()) {
			list.add(row.y);
		}
		return list;
	}
Returns the rows in this location map, sorted from lowest index to highest 

@return the rows in this location map, sorted from lowest index to highest
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/layout/LayoutLocationMap.java