Mercurial > repos > shellac > sam_consensus_v3
annotate env/share/doc/networkx-2.5/examples/drawing/plot_directed.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """ |
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2 ============== |
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3 Directed Graph |
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4 ============== |
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5 |
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6 Draw a graph with directed edges using a colormap and different node sizes. |
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7 |
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8 Edges have different colors and alphas (opacity). Drawn using matplotlib. |
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9 """ |
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10 |
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11 import matplotlib as mpl |
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12 import matplotlib.pyplot as plt |
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13 import networkx as nx |
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14 |
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15 G = nx.generators.directed.random_k_out_graph(10, 3, 0.5) |
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16 pos = nx.layout.spring_layout(G) |
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17 |
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18 node_sizes = [3 + 10 * i for i in range(len(G))] |
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19 M = G.number_of_edges() |
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20 edge_colors = range(2, M + 2) |
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21 edge_alphas = [(5 + i) / (M + 4) for i in range(M)] |
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22 |
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23 nodes = nx.draw_networkx_nodes(G, pos, node_size=node_sizes, node_color="blue") |
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24 edges = nx.draw_networkx_edges( |
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25 G, |
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26 pos, |
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27 node_size=node_sizes, |
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28 arrowstyle="->", |
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29 arrowsize=10, |
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30 edge_color=edge_colors, |
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31 edge_cmap=plt.cm.Blues, |
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32 width=2, |
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33 ) |
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34 # set alpha value for each edge |
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35 for i in range(M): |
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36 edges[i].set_alpha(edge_alphas[i]) |
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37 |
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38 pc = mpl.collections.PatchCollection(edges, cmap=plt.cm.Blues) |
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39 pc.set_array(edge_colors) |
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40 plt.colorbar(pc) |
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41 |
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42 ax = plt.gca() |
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43 ax.set_axis_off() |
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44 plt.show() |