dynamicalab.drawing.draw_networks

dynamicalab.drawing.draw_networks(G, pos, ax, mu=0.08, edge_color='black', edge_width=1.0, edge_alpha=1.0, use_edge_weigth=False, node_width=1.0, node_size=80.0, node_border_color='#404040', node_color='#EDEDED', node_alpha=1.0, arrow_scale=20.0, loop_radius=0.0, letter='', letter_fontsize=13, letter_pos=[0.87, 0.02], letter_color='black')

This function draws networks.

Parameters

G : Networkx Graph

A Networkx Graph or DiGraph.

pos : dict

A dictionary of nodes positions.

ax : Matplotlib Axes object

Draw the network in the specified Matplotlib axes.

mu : float : (default=0.05)

Level of curvature. Should always be positive. If zero, then edges are straight.

edge_color : str or list : (default=”black”)

If a list, then each entry matches the color of the edge. when iterated through edges. If a string, then each edge will have the same color.

edge_width : float or list : (default=1.0)

Use this if use_edge_weigth==False for edge widths. If a list, each element must be in the same order as G.edges()

edge_alpha : float : (default=1)

Edges opacity.

use_edge_weigth : Bool : (default=False)

Use the key weight of the edges attributes to choose the thickness of the edges.

node_width : Float : (default=1.0)

Node border width.

node_size : Float : (default=80)

Controls the node size (proportional to its radius).

node_border_color : String : (default=”#404040”)

Node border color.

node_color : String or list : (default=”#EDEDED”)

Node background color.

node_alpha : float : (default=1.0)

Node opacity.

arrow_scale : float : (default=20)

Control the size of the arrows. If equals to zero, then the arrows are invisible.

loop_radius : float : (default=0)

If edges contains self-loops, i.e. edge==(nodeA, nodeA), then it draws a self-loop which is composed of a simple circle. The radius of the circle is controlled by loop_radius.

letter : string : (default=”“)

Text that can be positioned on the figure.

letter_fontsize : float : (default=13)

Font size of the text .

letter_pos : List : (default=[0.87,0.02])

Position of the text given in relative size of the plot. The first element is x, the second is y.

letter_color : String : (default=”black”)

Color of the text.

Example

import networkx as nx
import dynamicalab.drawing as draw
import matplotlib.pyplot as plt
import seaborn as sns
import numpy as np


G = nx.erdos_renyi_graph(20,0.5)
pos = nx.spring_layout(G)
edges = G.edges()

sns.set(style="ticks")
fig = plt.figure()
ax = plt.gca()

node_colors = np.random.choice(['#b2182b','#d6604d','#f4a582','#fddbc7','#f7f7f7','#d1e5f0','#92c5de','#4393c3','#2166ac'],  20, replace=True)

draw.draw_networks(G, pos, ax,
                        mu=0.08, 
                        edge_color="gray", 
                        edge_width=1.5, 
                        edge_alpha=0.6,
                        use_edge_weigth=False,
                        node_width=1.5,
                        node_size=100.0,
                        node_border_color="#404040",
                        node_color=node_colors,
                        node_alpha=1.0, 
                        arrow_scale=0.0, 
                        loop_radius=0, 
                        letter="Example for Dynamicalab",
                        letter_fontsize=16,
                        letter_pos=[0.3, -0.05],
                        letter_color="black")