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57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
5 years ago
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from __future__ import print_function
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from __future__ import unicode_literals
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from builtins import str, bytes, dict, int
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import os
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import sys
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", ".."))
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from pattern.graph import Graph, CSS, CANVAS
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# This example demonstrates how to roll dynamic HTML graphs.
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# We have a HTML template in which content is inserted on-the-fly.
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# This is useful if the graph data changes dynamically,
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# e.g., the user clicks on a node and is taken to a webpage with a new subgraph.
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template = '''
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<!doctype html>
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<html>
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<head>
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\t<meta charset="utf-8">
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\t<script type="text/javascript" src="canvas.js"></script>
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\t<script type="text/javascript" src="graph.js"></script>
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\t<style type="text/css">
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\t\t%s
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\t</style>
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</head>
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<body>
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\t%s
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</body>
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</html>
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'''.strip()
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def webpage(graph, **kwargs):
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s1 = graph.serialize(CSS, **kwargs)
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s2 = graph.serialize(CANVAS, **kwargs)
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return template % (
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s1.replace("\n", "\n\t\t"),
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s2.replace("\n", "\n\t")
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)
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# Create a graph:
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g = Graph()
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g.add_node("cat")
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g.add_node("dog")
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g.add_edge("cat", "dog")
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# To make this work as a cgi-bin script, uncomment the following lines:
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##!/usr/bin/env python
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#import cgi
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#import cgitb; cgitb.enable() # Debug mode.
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#print("Content-type: text/html")
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print(webpage(g, width=500, height=500))
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