Ejemplo n.º 1
0
    def __init__(self, data=None, name='', weighted=True):
        """Initialize an empty graph.

        Examples
        --------
        >>> G=nx.Graph()
        >>> G=nx.Graph(name='my graph')
        >>> G=nx.Graph(weighted=False)  # don't assume edge data are weights
        """
        self.adj = {}  # empty adjacency hash
        self.weighted = weighted
        # attempt to load graph with data
        if data is not None:
            convert.from_whatever(data,create_using=self)
        self.name = name
Ejemplo n.º 2
0
    def __init__(self, data=None, name='', weighted=True):
        """Initialize an empty graph.

        Examples
        --------
        >>> G=nx.Graph()
        >>> G=nx.Graph(name='my graph')
        >>> G=nx.Graph(weighted=False)  # don't assume edge data are weights
        """
        self.adj = {}  # empty adjacency hash
        self.weighted = weighted
        # attempt to load graph with data
        if data is not None:
            convert.from_whatever(data, create_using=self)
        self.name = name
Ejemplo n.º 3
0
 def __init__(self, data=None, **kwds):
     Tree.__init__(self, **kwds)
     self.comp = {}  # dictionary mapping node to component
     self.nc = 0  # component index, start at zero, sequential (with holes)
     if data is not None:
         try:
             self = convert.from_whatever(data, create_using=self)
         except:
             raise NetworkXError("Data %s is not a forest" % data)
Ejemplo n.º 4
0
 def __init__(self,data=None,**kwds):
     Tree.__init__(self,**kwds)
     self.comp={}  # dictionary mapping node to component
     self.nc=0 # component index, start at zero, sequential (with holes)
     if data is not None:
         try:
             self=convert.from_whatever(data,create_using=self)
         except:
             raise NetworkXError("Data %s is not a forest"%data)
Ejemplo n.º 5
0
    def __init__(self, data=None, name='', weighted=True):
        """Initialize an empty directed graph.

        Examples
        --------
        >>> G=nx.DiGraph()
        >>> G=nx.DiGraph(name='my graph')
        >>> G=nx.DiGraph(weighted=False)  # don't assume edge data are weights
        """
        # We store two adjacency lists:
        # the  predecessors of node n are stored in the dict self.pred
        # the successors of node n are stored in the dict self.succ=self.adj
        self.adj = {}  # empty adjacency dictionary
        self.pred = {}  # predecessor
        self.succ = self.adj  # successor
        self.weighted = weighted
        # attempt to load graph with data
        if data is not None:
            convert.from_whatever(data,create_using=self)
        self.name=name
Ejemplo n.º 6
0
    def __init__(self, data=None, name='', weighted=True):
        """Initialize an empty directed graph.

        Examples
        --------
        >>> G=nx.DiGraph()
        >>> G=nx.DiGraph(name='my graph')
        >>> G=nx.DiGraph(weighted=False)  # don't assume edge data are weights
        """
        # We store two adjacency lists:
        # the  predecessors of node n are stored in the dict self.pred
        # the successors of node n are stored in the dict self.succ=self.adj
        self.adj = {}  # empty adjacency dictionary
        self.pred = {}  # predecessor
        self.succ = self.adj  # successor
        self.weighted = weighted
        # attempt to load graph with data
        if data is not None:
            convert.from_whatever(data, create_using=self)
        self.name = name
Ejemplo n.º 7
0
 def __init__(self, data=None, **kwds):
     Graph.__init__(self, **kwds)
     if data is not None:
         try:  # build a graph
             G = Graph()
             G = convert.from_whatever(data, create_using=G)
         except:
             raise NetworkXError, "Data %s is not a tree" % data
         # check if it is a tree.
         if G.order()==G.size()+1 and \
                component.number_connected_components(G)==1:
             self.adj = G.adj.copy()
             del G
         else:
             raise NetworkXError, "Data %s is not a tree" % data
Ejemplo n.º 8
0
 def __init__(self,data=None,**kwds):
     Graph.__init__(self,**kwds)
     if data is not None:
         try: # build a graph
             G=Graph()
             G=convert.from_whatever(data,create_using=G)
         except:
             raise NetworkXError, "Data %s is not a tree"%data
         # check if it is a tree.
         if G.order()==G.size()+1 and \
                component.number_connected_components(G)==1:
             self.adj=G.adj.copy()
             del G
         else:
             raise NetworkXError, "Data %s is not a tree"%data
Ejemplo n.º 9
0
    def __init__(self, data=None, name='', 
                 selfloops=False, 
                 multiedges=False, 
                 ubigraph_server= 'http://127.0.0.1:20738/RPC2',
                 clear=True,
                 nextid=0):

        import xmlrpclib
        try:
            server_url = ubigraph_server
            self.server = xmlrpclib.Server(server_url)
            self.ubigraph = self.server.ubigraph
            if clear:
                self.ubigraph.clear()
        except:
            raise IOError("No Ubigraph server found")
        
        # default node and edge styles
        self.ubigraph.set_vertex_style_attribute(0, "color", "#ff0000")
        self.ubigraph.set_vertex_style_attribute(0, "shape", "sphere")
        self.ubigraph.set_vertex_style_attribute(0, "size", "0.7")

        self.ubigraph.set_edge_style_attribute(0, "color", "#ffffff")
        self.ubigraph.set_edge_style_attribute(0, "width", "2.0")

        self.use_splines=False
        self.use_node_labels=False
        self.use_edge_labels=False

        # keep a mapping from nodes to ubigraph ids
        self.nodeid={} 
        self.nextid=nextid
        self.idnode={} 



        self.adj={}      # adjacency list
        self.selfloops=selfloops
        self.multiedges=multiedges
        if data is not None:
            self=convert.from_whatever(data,create_using=self)
        self.name=name
Ejemplo n.º 10
0
    def __init__(self,
                 data=None,
                 name='',
                 selfloops=False,
                 multiedges=False,
                 ubigraph_server='http://127.0.0.1:20738/RPC2',
                 clear=True,
                 nextid=0):

        import xmlrpclib
        try:
            server_url = ubigraph_server
            self.server = xmlrpclib.Server(server_url)
            self.ubigraph = self.server.ubigraph
            if clear:
                self.ubigraph.clear()
        except:
            raise IOError("No Ubigraph server found")

        # default node and edge styles
        self.ubigraph.set_vertex_style_attribute(0, "color", "#ff0000")
        self.ubigraph.set_vertex_style_attribute(0, "shape", "sphere")
        self.ubigraph.set_vertex_style_attribute(0, "size", "0.7")

        self.ubigraph.set_edge_style_attribute(0, "color", "#ffffff")
        self.ubigraph.set_edge_style_attribute(0, "width", "2.0")

        self.use_splines = False
        self.use_node_labels = False
        self.use_edge_labels = False

        # keep a mapping from nodes to ubigraph ids
        self.nodeid = {}
        self.nextid = nextid
        self.idnode = {}

        self.adj = {}  # adjacency list
        self.selfloops = selfloops
        self.multiedges = multiedges
        if data is not None:
            self = convert.from_whatever(data, create_using=self)
        self.name = name