#include "mgraph.h"
double compute_energy(const struct Vertices *vs);
+void energy_init(void);
double graph_layout_cost(const Vertices v);
void graph_layout_prepare();
void compute_edge_lengths(const Vertices vertices);
extern double vertex_areas[N], vertex_mean_edge_lengths[N], edge_lengths[N][V6];
+double line_bending_cost(const Vertices vertices);
double noncircular_rim_cost(const Vertices vertices);
-double edgewise_vertex_displacement_cost(const Vertices vertices);
double edge_length_variation_cost(const Vertices vertices);
+double rim_proximity_cost(const Vertices vertices);
extern const char *input_file, *output_file;
extern char *output_file_tmp;