edge.py 文件源码

def render_edge_graphviz (self, graph):
        '''
        Render an edge suitable for use in a Pydot graph using the set internal attributes.

        @type  graph: pgraph.graph
        @param graph: Top level graph object containing the current edge

        @rtype:  pydot.Edge()
        @return: Pydot object representing edge
        '''

        import pydot

        # no need to validate if nodes exist for src/dst. graphviz takes care of that for us transparently.

        dot_edge = pydot.Edge(self.src, self.dst)

        if self.label:
            dot_edge.label = self.label

        dot_edge.color = "#%06x" % self.color

        return dot_edge


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