Open .dot formatted chart from python

Question

How can I plot curves with matplotlib in python, I wonder if there are any ways to show .dot graphics. I have a line describing the graph:

graph name{ 1--2; } 

Somehow pass it to the viewer?

Answer 1

Perhaps not quite what you intend to do, but you can use pygraphviz and print the graph to a file:

 import pygraphviz as pgv G=pgv.AGraph() G.add_edge('1','2') G.layout() G.draw('file.png') 

(or you can just import the .dot file with G = pgv.AGraph ('file.dot'))

Then you can always use Image or openCV to download your file and display it in the viewer.

I don't think pygraphviz allows you this directly.

EDIT:

I recently learned another way and remembered your question: NetworkX allows you to do this. Here's how:

Or create your own graph using NetworkX directly. Conveniently, most NetworkX commands are the same as in pygraphviz. Then just send to matplotlib and write it there:

 import networkx as nx import matplotlib.pyplot as plt G = nx.Graph() G.add_edge('1','2') nx.draw(G) plt.show() 

Or you can import your .dot file through pygraphviz and then convert it to a networkx object:

 import pygraphviz as pgv import networkx as nx import matplotlib.pyplot as plt Gtmp = pgv.AGraph('file.dot') G = nx.Graph(Gtmp) nx.draw(G) plt.show() 

So now you have more options :)