本文整理汇总了Python中networkx.Graph.mutate方法的典型用法代码示例。如果您正苦于以下问题：Python Graph.mutate方法的具体用法？Python Graph.mutate怎么用？Python Graph.mutate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类networkx.Graph的用法示例。
在下文中一共展示了Graph.mutate方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: NetworkXGraphBackend
# 需要导入模块: from networkx import Graph [as 别名]
# 或者: from networkx.Graph import mutate [as 别名]
class NetworkXGraphBackend(GenericGraphBackend):
"""
A wrapper for NetworkX as the backend of a graph.
TESTS::
sage: import sage.graphs.base.graph_backends
"""
_nxg = None
def __init__(self, N=None):
"""
Initialize the backend with NetworkX graph N.
TESTS::
sage: G = sage.graphs.base.graph_backends.NetworkXGraphBackend()
sage: G.iterator_edges([],True)
<generator object iterator_edges at ...>
"""
if N is None:
import networkx
N = networkx.MultiGraph()
self._nxg = N
if isinstance(self._nxg, (NetworkXGraphDeprecated, NetworkXDiGraphDeprecated)):
self._nxg = self._nxg.mutate()
def add_edge(self, u, v, l, directed):
"""
Add an edge (u,v) to self, with label l. If directed is True, this is
interpreted as an arc from u to v.
INPUT:
- ``u,v`` -- vertices
- ``l`` -- edge label
- ``directed`` -- boolean
TESTS::
sage: G = sage.graphs.base.graph_backends.NetworkXGraphBackend()
sage: G.add_edge(1,2,'a',True)
"""
if isinstance(self._nxg, (NetworkXGraphDeprecated, NetworkXDiGraphDeprecated)):
self._nxg = self._nxg.mutate()
if u is None: u = self.add_vertex(None)
if v is None: v = self.add_vertex(None)
if l:
self._nxg.add_edge(u, v, weight=l)
else:
self._nxg.add_edge(u, v)
def add_edges(self, edges, directed):
"""
Add a sequence of edges to self. If directed is True, these are
interpreted as arcs.
INPUT:
- ``edges`` -- list/iterator of edges to be added.
- ``directed`` -- boolean
TESTS::
sage: G = sage.graphs.base.graph_backends.NetworkXGraphBackend()
sage: G.add_edges([],True)
"""
for e in edges:
try:
u,v,l = e
except ValueError:
u,v = e
l = None
self.add_edge(u,v,l,directed)
def add_vertex(self, name):
"""
Add a labelled vertex to self.
INPUT:
- ``name``: vertex label
OUTPUT:
If ``name=None``, the new vertex name is returned. ``None`` otherwise.
TESTS::
sage: G = sage.graphs.base.graph_backends.NetworkXGraphBackend()
sage: G.add_vertex(0)
"""
if isinstance(self._nxg, (NetworkXGraphDeprecated, NetworkXDiGraphDeprecated)):
self._nxg = self._nxg.mutate()
#.........这里部分代码省略.........