static void
dot_init_edge(edge_t * e)
{
char *tailgroup, *headgroup;
#ifdef WITH_CGRAPH
agbindrec(e, "Agedgeinfo_t", sizeof(Agedgeinfo_t), TRUE); //graph custom data
#endif /* WITH_CGRAPH */
common_init_edge(e);
ED_weight(e) = late_double(e, E_weight, 1.0, 0.0);
tailgroup = late_string(agtail(e), N_group, "");
headgroup = late_string(aghead(e), N_group, "");
ED_count(e) = ED_xpenalty(e) = 1;
if (tailgroup[0] && (tailgroup == headgroup)) {
ED_xpenalty(e) = CL_CROSS;
ED_weight(e) *= 100;
}
if (nonconstraint_edge(e)) {
ED_xpenalty(e) = 0;
ED_weight(e) = 0;
}
ED_showboxes(e) = late_int(e, E_showboxes, 0, 0);
ED_minlen(e) = late_int(e, E_minlen, 1, 0);
}
void class1(graph_t * g)
{
node_t *n, *t, *h;
edge_t *e, *rep;
mark_clusters(g);
for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
for (e = agfstout(g, n); e; e = agnxtout(g, e)) {
/* skip edges already processed */
if (ED_to_virt(e))
continue;
/* skip edges that we want to ignore in this phase */
if (nonconstraint_edge(e))
continue;
t = UF_find(agtail(e));
h = UF_find(aghead(e));
/* skip self, flat, and intra-cluster edges */
if (t == h)
continue;
/* inter-cluster edges require special treatment */
if (ND_clust(t) || ND_clust(h)) {
interclust1(g, agtail(e), aghead(e), e);
continue;
}
if ((rep = find_fast_edge(t, h)))
merge_oneway(e, rep);
else
virtual_edge(t, h, e);
#ifdef NOTDEF
if ((t == agtail(e)) && (h == aghead(e))) {
if (rep = find_fast_edge(t, h))
merge_oneway(e, rep);
else
virtual_edge(t, h, e);
} else {
f = agfindedge(g, t, h);
if (f && (ED_to_virt(f) == NULL))
rep = virtual_edge(t, h, f);
else
rep = find_fast_edge(t, h);
if (rep)
merge_oneway(e, rep);
else
virtual_edge(t, h, e);
}
#endif
}
}
}
static void
dot_init_edge(edge_t * e)
{
char *tailgroup, *headgroup;
common_init_edge(e);
ED_weight(e) = late_double(e, E_weight, 1.0, 0.0);
tailgroup = late_string(e->tail, N_group, "");
headgroup = late_string(e->head, N_group, "");
ED_count(e) = ED_xpenalty(e) = 1;
if (tailgroup[0] && (tailgroup == headgroup)) {
ED_xpenalty(e) = CL_CROSS;
ED_weight(e) *= 100;
}
if (nonconstraint_edge(e)) {
ED_xpenalty(e) = 0;
ED_weight(e) = 0;
}
ED_showboxes(e) = late_int(e, E_showboxes, 0, 0);
ED_minlen(e) = late_int(e, E_minlen, 1, 0);
}
