remove unnecessary nodesize functions for circo and twopi;
initialize layout state in graph_init so that it will be initialized anew
for each layout;
move aspect ratio and copying of coords from ND_pos to ND_coord out of
neato spline code;
adopt convention that if the splines attribute is set to "", no splines
are generated.
extern void circleLayout(Agraph_t * sg, Agnode_t * center);
extern void twopi_layout(Agraph_t * g);
extern void twopi_cleanup(Agraph_t * g);
- extern void twopi_nodesize(node_t * n, boolean flip);
extern void twopi_init_graph(graph_t * g);
#ifdef __cplusplus