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Sparklines #622
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Sparklines #622
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // Forked from: https://github.com/KyleAMathews/react-sparkline at commit a9d7c5203d8f240938b9f2288287aaf0478df013 | ||
| const React = require('react'); | ||
| const d3 = require('d3'); | ||
|
|
||
| const Sparkline = React.createClass({ | ||
| getDefaultProps: function() { | ||
| return { | ||
| width: 100, | ||
| height: 16, | ||
| strokeColor: '#7d7da8', | ||
| strokeWidth: '0.5px', | ||
| interpolate: 'basis', | ||
| circleDiameter: 1.75, | ||
| data: [1, 23, 5, 5, 23, 0, 0, 0, 4, 32, 3, 12, 3, 1, 24, 1, 5, 5, 24, 23] // Some semi-random data. | ||
| }; | ||
| }, | ||
|
|
||
| componentDidMount: function() { | ||
| return this.renderSparkline(); | ||
| }, | ||
|
|
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| renderSparkline: function() { | ||
| // If the sparkline has already been rendered, remove it. | ||
| let el = this.getDOMNode(); | ||
| while (el.firstChild) { | ||
| el.removeChild(el.firstChild); | ||
| } | ||
|
|
||
| let data = this.props.data.slice(); | ||
|
|
||
| // Do nothing if no data is passed in. | ||
| if (data.length === 0) { | ||
| return; | ||
| } | ||
|
|
||
| let x = d3.scale.linear().range([2, this.props.width - 2]); | ||
| let y = d3.scale.linear().range([this.props.height - 2, 2]); | ||
|
|
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| // react-sparkline allows you to pass in two types of data. | ||
| // Data tied to dates and linear data. We need to change our line and x/y | ||
| // functions depending on the type of data. | ||
|
|
||
| // These are objects with a date key | ||
| let line; | ||
| let lastX; | ||
| let lastY; | ||
| let title; | ||
| if (data[0].date) { | ||
| // Convert dates into D3 dates | ||
| data.forEach(d => { | ||
| d.date = d3.time.format.iso.parse(d.date); | ||
| }); | ||
|
|
||
| line = d3.svg.line(). | ||
| interpolate(this.props.interpolate). | ||
| x(d => x(d.date)). | ||
| y(d => y(d.value)); | ||
|
|
||
| let first = this.props.first ? d3.time.format.iso.parse(this.props.first) : d3.min(data, d => d.date); | ||
| let last = this.props.last ? d3.time.format.iso.parse(this.props.last) : d3.max(data, d => d.date); | ||
| x.domain([first, last]); | ||
|
|
||
| y.domain([ | ||
| this.props.min || d3.min(data, d => d.value), | ||
| this.props.max || d3.max(data, d => d.value) | ||
| ]); | ||
|
|
||
| lastX = x(data[data.length - 1].date); | ||
| lastY = y(data[data.length - 1].value); | ||
| title = 'Last ' + d3.round((last - first) / 1000) + ' seconds, ' + data.length + ' samples, min: ' + d3.round(d3.min(data, d => d.value), 2) + ', max: ' + d3.round(d3.max(data, d => d.value), 2) + ', mean: ' + d3.round(d3.mean(data, d => d.value), 2); | ||
| } else { | ||
| line = d3.svg.line(). | ||
| interpolate(this.props.interpolate). | ||
| x((d, i) => x(i)). | ||
| y(d => y(d)); | ||
|
|
||
| x.domain([ | ||
| this.props.first || 0, | ||
| this.props.last || data.length | ||
| ]); | ||
|
|
||
| y.domain([ | ||
| this.props.min || d3.min(data), | ||
| this.props.max || d3.max(data) | ||
| ]); | ||
|
|
||
| lastX = x(data.length - 1); | ||
| lastY = y(data[data.length - 1]); | ||
| title = data.length + ' samples, min: ' + d3.round(d3.min(data), 2) + ', max: ' + d3.round(d3.max(data), 2) + ', mean: ' + d3.round(d3.mean(data), 2); | ||
| } | ||
|
|
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| d3.select(this.getDOMNode()).attr('title', title); | ||
|
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||
| let svg = d3.select(this.getDOMNode()). | ||
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||
| append('svg'). | ||
| attr('width', this.props.width). | ||
| attr('height', this.props.height). | ||
| append('g'); | ||
|
|
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| svg.append('path'). | ||
| datum(data). | ||
| attr('class', 'sparkline'). | ||
| style('fill', 'none'). | ||
| style('stroke', this.props.strokeColor). | ||
| style('stroke-width', this.props.strokeWidth). | ||
| attr('d', line); | ||
|
|
||
| svg.append('circle'). | ||
| attr('class', 'sparkcircle'). | ||
| attr('cx', lastX). | ||
| attr('cy', lastY). | ||
| attr('fill', '#46466a'). | ||
| attr('fill-opacity', 0.6). | ||
| attr('stroke', 'none'). | ||
| attr('r', this.props.circleDiameter); | ||
| }, | ||
|
|
||
| render: function() { | ||
| return ( | ||
| <div/> | ||
| ); | ||
| }, | ||
|
|
||
| componentDidUpdate: function() { | ||
| return this.renderSparkline(); | ||
| } | ||
| }); | ||
|
|
||
| module.exports = Sparkline; | ||
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