Draw a `Netwrok` using the `Cairo` backend of `graph-tool`

draw-network.py

# coding=utf-8
"""This module lays out the LM network for DEL.

"""

from __future__ import print_function

from network.maps.ncr import DEL
from network.network import Network

delhivery = Network(DEL)
dgr = delhivery.graph

# draw the network
from graph_tool.all import graph_draw, map_property_values
from graph_tool.all import (sfdp_layout, arf_layout,
                            radial_tree_layout, random_layout,
                            fruchterman_reingold_layout)

pos = sfdp_layout(dgr)
colour = dgr.new_vertex_property('string')
colmap = {
    -1: 'black',
    0: 'red',
    1: 'blue',
    2: 'green'
}
map_property_values(dgr.vp.depth, colour, lambda d: colmap[d])
# node name: vertex_text=dgr.vp.name, vertex_text_position=5,
graph_draw(dgr, pos=pos, vertex_fill_color=colour,
           output='del.png', output_size=(800, 800))