This is an example of using ReactJs to render a force directed network graph. D3 performs all the positional calculations for each node and React handles rendering.
Created
January 26, 2016 05:58
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React + D3 Force Layout
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/react/0.14.3/react.min.js"></script> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| </head> | |
| <body> | |
| <div id="content"></div> | |
| <script type="text/jsx"> | |
| var size = 1000; | |
| var height = 500; | |
| var width = 960; | |
| var charge = -0.3; | |
| var data = d3.range(size).map(function(){ | |
| return {r: Math.floor(Math.random() * 8 + 2)}; | |
| }); | |
| var start = new Date(); | |
| var time = 0; | |
| var ticks = 0; | |
| var force = d3.layout.force() | |
| .size([width, height]) | |
| .nodes(data) | |
| .charge(function(d){ | |
| return d.r * d.r * charge; | |
| }); | |
| var Circles = React.createClass({ | |
| render: function () { | |
| var circles = this.props.data.map(function (d, i) { | |
| return <circle cx={ d.x } cy={ d.y } r={ d.r } fill="steelblue" key={ i } /> | |
| }); | |
| return ( | |
| <g>{ circles }</g> | |
| ); | |
| } | |
| }); | |
| var Vis = React.createClass({ | |
| getInitialState: function () { | |
| return { data: data }; | |
| }, | |
| componentDidMount: function () { | |
| var component = this; | |
| force.on('tick', function () { | |
| component.setState({ data: data }); | |
| ticks++; | |
| }); | |
| force.start(); | |
| force.on('end', function () { | |
| var totalTime = new Date() - start; | |
| console.log('Total Time:', totalTime); | |
| console.log('Render Time:', time); | |
| console.log('Ticks:', ticks); | |
| console.log('Average Time:', totalTime / ticks); | |
| }); | |
| }, | |
| componentWillUpdate: function () { | |
| this.renderStart = new Date(); | |
| }, | |
| componentDidUpdate: function () { | |
| time += new Date() - this.renderStart; | |
| }, | |
| render: function () { | |
| return ( | |
| <svg height={ height } width={ width }> | |
| <Circles data={ this.state.data } /> | |
| </svg> | |
| ); | |
| } | |
| }); | |
| React.render(<Vis />, document.getElementById('content')); | |
| </script> | |
| </body> | |
| </html> |
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