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Parent(s):
12440bd
Create scripts/viz.py
Browse files- scripts/viz.py +119 -0
scripts/viz.py
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from IPython.display import IFrame
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import json
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import uuid
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def vis_network(nodes, edges, physics=False):
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html = """
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<html>
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<head>
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<script type="text/javascript" src="../lib/vis/dist/vis.js"></script>
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<link href="../lib/vis/dist/vis.css" rel="stylesheet" type="text/css">
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</head>
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<body>
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<div id="{id}"></div>
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<script type="text/javascript">
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var nodes = {nodes};
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var edges = {edges};
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var container = document.getElementById("{id}");
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var data = {{
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nodes: nodes,
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edges: edges
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}};
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var options = {{
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nodes: {{
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shape: 'dot',
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size: 25,
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font: {{
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size: 14
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}}
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}},
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edges: {{
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font: {{
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size: 14,
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align: 'middle'
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}},
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color: 'gray',
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arrows: {{
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to: {{enabled: true, scaleFactor: 0.5}}
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}},
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smooth: {{enabled: false}}
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}},
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physics: {{
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enabled: {physics}
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}}
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}};
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var network = new vis.Network(container, data, options);
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</script>
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</body>
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</html>
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"""
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unique_id = str(uuid.uuid4())
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html = html.format(id=unique_id, nodes=json.dumps(nodes), edges=json.dumps(edges), physics=json.dumps(physics))
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filename = "figure/graph-{}.html".format(unique_id)
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file = open(filename, "w")
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file.write(html)
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file.close()
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return IFrame(filename, width="100%", height="400")
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def draw(graph, options, physics=False, limit=100):
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# The options argument should be a dictionary of node labels and property keys; it determines which property
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# is displayed for the node label. For example, in the movie graph, options = {"Movie": "title", "Person": "name"}.
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# Omitting a node label from the options dict will leave the node unlabeled in the visualization.
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# Setting physics = True makes the nodes bounce around when you touch them!
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query = """
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MATCH (n)
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WITH n, rand() AS random
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ORDER BY random
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LIMIT {limit}
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OPTIONAL MATCH (n)-[r]->(m)
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RETURN n AS source_node,
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id(n) AS source_id,
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r,
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m AS target_node,
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id(m) AS target_id
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"""
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data = graph.run(query, limit=limit)
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nodes = []
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edges = []
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def get_vis_info(node, id):
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node_label = list(node.labels())[0]
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prop_key = options.get(node_label)
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vis_label = node.properties.get(prop_key, "")
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return {"id": id, "label": vis_label, "group": node_label, "title": repr(node.properties)}
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for row in data:
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source_node = row[0]
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source_id = row[1]
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rel = row[2]
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target_node = row[3]
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target_id = row[4]
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source_info = get_vis_info(source_node, source_id)
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if source_info not in nodes:
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nodes.append(source_info)
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if rel is not None:
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target_info = get_vis_info(target_node, target_id)
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if target_info not in nodes:
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nodes.append(target_info)
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edges.append({"from": source_info["id"], "to": target_info["id"], "label": rel.type()})
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return vis_network(nodes, edges, physics=physics)
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