/**
 * \page ex-layout Calling Layout Algorithms
 *
 * \section sec-ex-layout-1 Hierarchical layout
 *
 * \include hierarchical.cpp
 *
 * \section sec-ex-layout-2 Hierarchical layout with predefined layering
 *
 * \include hierarchical-ranking.cpp
 *
 * \section sec-ex-layout-3 Energy-based layout
 *
 * \include energybased.cpp
 *
 * \section sec-ex-layout-4 Orthogonal layout
 *
 * \include orthogonal.cpp
 */
