[Matplotlib-users] hierarchical coloring of nodes

[Srivathsan Srinivas]

Hi,
   I am trying to plot a graph and color nodes in a loop. So far, the
for-loop I am using can color them. But, I am able to color them using a
single color. I want to color the nodes differently for each iteration of
the for-loop. How do I do that?

My code so far:
============================================

    nx.draw(G,pos, node_color='w', edge_color='k',
            width=0.5,with_labels=True,alpha=0.8)
    time.sleep(1)


    # Now, begin updating by coloring nodes and edges
    for i,nlist in enumerate(MIS_levels):
        # update-color each level nodes
        nx.draw_networkx_nodes(G,pos,nodelist=nlist,
                               node_color='b',node_size=200,alpha=0.8)
        time.sleep(1)

        if i < len(elist):
            nx.draw_networkx_edges(G,pos, edgelist=elist[i],edge_color='r',
                                   width=2,with_labels=True,alpha=0.8)


        plt.plot()
        time.sleep(1)
========================================================

The above code colors the nodes blue and the edges r.  I want to options:

1 ---  For each iteration, I want the nodes to be colored in diminishing
shade (like Red_r).
2 ---  For each iteration, I want  a separate coloring of the nodes.


Any ideas, suggestions are very much appreicated.

Thanks,
Sri.

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