Python Graph.add_vertex Exemples

Exemple #1

#!/usr/bin/env python3

from test_more import ok
from graph_tools import Graph

g = Graph(directed=True)

g.add_edge(1, 2)
g.add_edge(2, 3)
g.add_vertex(4)
ok(g.is_reachable(1, 2))
ok(g.is_reachable(2, 3))
ok(g.is_reachable(1, 3))
ok(not g.is_reachable(2, 1))
ok(not g.is_reachable(3, 2))
ok(not g.is_reachable(3, 1))

Exemple #2

Fichier : 10_dot.py Projet : lanicon/graph-tools

#!/usr/bin/env python3

import re
from test_more import ok, eq
from graph_tools import Graph

g = Graph(directed=False, multiedged=True)
g.add_vertex(1)
astr = g.export_graph('dot')
ok(astr)
astr = re.sub(r'^//.*\n', '', astr, flags=re.M)
eq(astr, """graph export_dot {
  node [color=gray90,style=filled];
  "1";
}
""")

g = Graph(directed=False, multiedged=True)
g.add_edge(1, 2)
astr = g.export_graph('dot')
ok(astr)
astr = re.sub(r'^//.*\n', '', astr, flags=re.M)
eq(
    astr, """graph export_dot {
  node [color=gray90,style=filled];
  "1";
  "2";
  "1" -- "2";
}
""")