<!DOCTYPE HTML> <html lang="" > <head> <meta charset="UTF-8"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <title>Chart.js ยท Chart.js documentation</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="description" content=""> <meta name="generator" content="GitBook 3.2.2"> <meta name="author" content="chartjs"> <link rel="stylesheet" href="gitbook/style.css"> <link rel="stylesheet" href="gitbook/gitbook-plugin-search-plus/search.css"> <link rel="stylesheet" href="gitbook/gitbook-plugin-highlight/website.css"> <link rel="stylesheet" href="gitbook/gitbook-plugin-fontsettings/website.css"> <link rel="stylesheet" href="style.css"> <meta name="HandheldFriendly" content="true"/> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <link rel="apple-touch-icon-precomposed" sizes="152x152" href="gitbook/images/apple-touch-icon-precomposed-152.png"> <link rel="shortcut icon" href="gitbook/images/favicon.ico" type="image/x-icon"> <link rel="next" href="getting-started/" /> <link rel="stylesheet" href="gitbook/gitbook-plugin-chartjs/style.css"> <script src="gitbook/gitbook-plugin-chartjs/Chart.bundle.js"></script> <script src="gitbook/gitbook-plugin-chartjs/chartjs-plugin-deferred.js"></script> </head> <body> <div class="book"> <div class="book-summary"> <div id="book-search-input" role="search"> <input type="text" placeholder="Type to search" /> </div> <nav role="navigation"> <ul class="summary"> <li class="chapter active" data-level="1.1" data-path="./"> <a href="./"> Chart.js </a> </li> <li class="chapter " data-level="1.2" data-path="getting-started/"> <a href="getting-started/"> Getting Started </a> <ul class="articles"> <li class="chapter " data-level="1.2.1" data-path="getting-started/installation.html"> <a href="getting-started/installation.html"> Installation </a> </li> <li class="chapter " data-level="1.2.2" data-path="getting-started/integration.html"> <a href="getting-started/integration.html"> Integration </a> </li> <li class="chapter " data-level="1.2.3" data-path="getting-started/usage.html"> <a href="getting-started/usage.html"> Usage </a> </li> </ul> </li> <li class="chapter " data-level="1.3" data-path="general/"> <a href="general/"> General </a> <ul class="articles"> <li class="chapter " data-level="1.3.1" data-path="general/responsive.html"> <a href="general/responsive.html"> Responsive </a> </li> <li class="chapter " data-level="1.3.2" data-path="general/device-pixel-ratio.html"> <a href="general/device-pixel-ratio.html"> Pixel Ratio </a> </li> <li class="chapter " data-level="1.3.3" data-path="general/interactions/"> <a href="general/interactions/"> Interactions </a> <ul class="articles"> <li class="chapter " data-level="1.3.3.1" data-path="general/interactions/events.html"> <a href="general/interactions/events.html"> Events </a> </li> <li class="chapter " data-level="1.3.3.2" data-path="general/interactions/modes.html"> <a href="general/interactions/modes.html"> Modes </a> </li> </ul> </li> <li class="chapter " data-level="1.3.4" data-path="general/options.html"> <a href="general/options.html"> Options </a> </li> <li class="chapter " data-level="1.3.5" data-path="general/colors.html"> <a href="general/colors.html"> Colors </a> </li> <li class="chapter " data-level="1.3.6" data-path="general/fonts.html"> <a href="general/fonts.html"> Fonts </a> </li> </ul> </li> <li class="chapter " data-level="1.4" data-path="configuration/"> <a href="configuration/"> Configuration </a> <ul class="articles"> <li class="chapter " data-level="1.4.1" data-path="configuration/animations.html"> <a href="configuration/animations.html"> Animations </a> </li> <li class="chapter " data-level="1.4.2" data-path="configuration/layout.html"> <a href="configuration/layout.html"> Layout </a> </li> <li class="chapter " data-level="1.4.3" data-path="configuration/legend.html"> <a href="configuration/legend.html"> Legend </a> </li> <li class="chapter " data-level="1.4.4" data-path="configuration/title.html"> <a href="configuration/title.html"> Title </a> </li> <li class="chapter " data-level="1.4.5" data-path="configuration/tooltip.html"> <a href="configuration/tooltip.html"> Tooltip </a> </li> <li class="chapter " data-level="1.4.6" data-path="configuration/elements.html"> <a href="configuration/elements.html"> Elements </a> </li> </ul> </li> <li class="chapter " data-level="1.5" data-path="charts/"> <a href="charts/"> Charts </a> <ul class="articles"> <li class="chapter " data-level="1.5.1" data-path="charts/line.html"> <a href="charts/line.html"> Line </a> </li> <li class="chapter " data-level="1.5.2" data-path="charts/bar.html"> <a href="charts/bar.html"> Bar </a> </li> <li class="chapter " data-level="1.5.3" data-path="charts/radar.html"> <a href="charts/radar.html"> Radar </a> </li> <li class="chapter " data-level="1.5.4" data-path="charts/doughnut.html"> <a href="charts/doughnut.html"> Doughnut & Pie </a> </li> <li class="chapter " data-level="1.5.5" data-path="charts/polar.html"> <a href="charts/polar.html"> Polar Area </a> </li> <li class="chapter " data-level="1.5.6" data-path="charts/bubble.html"> <a href="charts/bubble.html"> Bubble </a> </li> <li class="chapter " data-level="1.5.7" data-path="charts/scatter.html"> <a href="charts/scatter.html"> Scatter </a> </li> <li class="chapter " data-level="1.5.8" data-path="charts/area.html"> <a href="charts/area.html"> Area </a> </li> <li class="chapter " data-level="1.5.9" data-path="charts/mixed.html"> <a href="charts/mixed.html"> Mixed </a> </li> </ul> </li> <li class="chapter " data-level="1.6" data-path="axes/"> <a href="axes/"> Axes </a> <ul class="articles"> <li class="chapter " data-level="1.6.1" data-path="axes/cartesian/"> <a href="axes/cartesian/"> Cartesian </a> <ul class="articles"> <li class="chapter " data-level="1.6.1.1" data-path="axes/cartesian/category.html"> <a href="axes/cartesian/category.html"> Category </a> </li> <li class="chapter " data-level="1.6.1.2" data-path="axes/cartesian/linear.html"> <a href="axes/cartesian/linear.html"> Linear </a> </li> <li class="chapter " data-level="1.6.1.3" data-path="axes/cartesian/logarithmic.html"> <a href="axes/cartesian/logarithmic.html"> Logarithmic </a> </li> <li class="chapter " data-level="1.6.1.4" data-path="axes/cartesian/time.html"> <a href="axes/cartesian/time.html"> Time </a> </li> </ul> </li> <li class="chapter " data-level="1.6.2" data-path="axes/radial/"> <a href="axes/radial/"> Radial </a> <ul class="articles"> <li class="chapter " data-level="1.6.2.1" data-path="axes/radial/linear.html"> <a href="axes/radial/linear.html"> Linear </a> </li> </ul> </li> <li class="chapter " data-level="1.6.3" data-path="axes/labelling.html"> <a href="axes/labelling.html"> Labelling </a> </li> <li class="chapter " data-level="1.6.4" data-path="axes/styling.html"> <a href="axes/styling.html"> Styling </a> </li> </ul> </li> <li class="chapter " data-level="1.7" data-path="developers/"> <a href="developers/"> Developers </a> <ul class="articles"> <li class="chapter " data-level="1.7.1" data-path="developers/api.html"> <a href="developers/api.html"> Chart.js API </a> </li> <li class="chapter " data-level="1.7.2" data-path="developers/updates.html"> <a href="developers/updates.html"> Updating Charts </a> </li> <li class="chapter " data-level="1.7.3" data-path="developers/plugins.html"> <a href="developers/plugins.html"> Plugins </a> </li> <li class="chapter " data-level="1.7.4" data-path="developers/charts.html"> <a href="developers/charts.html"> New Charts </a> </li> <li class="chapter " data-level="1.7.5" data-path="developers/axes.html"> <a href="developers/axes.html"> New Axes </a> </li> <li class="chapter " data-level="1.7.6" data-path="developers/contributing.html"> <a href="developers/contributing.html"> Contributing </a> </li> </ul> </li> <li class="chapter " data-level="1.8" data-path="notes/"> <a href="notes/"> Additional Notes </a> <ul class="articles"> <li class="chapter " data-level="1.8.1" data-path="notes/comparison.html"> <a href="notes/comparison.html"> Comparison Table </a> </li> <li class="chapter " data-level="1.8.2" data-path="notes/extensions.html"> <a href="notes/extensions.html"> Popular Extensions </a> </li> <li class="chapter " data-level="1.8.3" data-path="notes/license.html"> <a href="notes/license.html"> License </a> </li> </ul> </li> <li class="divider"></li> <li> <a href="https://www.gitbook.com" target="blank" class="gitbook-link"> Published with GitBook </a> </li> </ul> </nav> </div> <div class="book-body"> <div class="body-inner"> <div class="book-header" role="navigation"> <!-- Title --> <h1> <i class="fa fa-circle-o-notch fa-spin"></i> <a href="." >Chart.js</a> </h1> </div> <div class="page-wrapper" tabindex="-1" role="main"> <div class="page-inner"> <div class="search-plus" id="book-search-results"> <div class="search-noresults"> <section class="normal markdown-section"> <h1 id="chartjs">Chart.js</h1> <p><a href="https://chartjs-slack.herokuapp.com/" target="_blank"><img src="https://img.shields.io/badge/slack-chartjs-blue.svg?style=flat-square&maxAge=3600" alt="slack"></a></p> <h2 id="installation">Installation</h2> <p>You can download the latest version of Chart.js from the <a href="https://github.com/chartjs/Chart.js/releases/latest" target="_blank">GitHub releases</a> or use a <a href="https://cdnjs.com/libraries/Chart.js" target="_blank">Chart.js CDN</a>. Detailed installation instructions can be found on the <a href="getting-started/installation.html">installation</a> page.</p> <h2 id="creating-a-chart">Creating a Chart</h2> <p>It's easy to get started with Chart.js. All that's required is the script included in your page along with a single <code><canvas></code> node to render the chart.</p> <p>In this example, we create a bar chart for a single dataset and render that in our page. You can see all the ways to use Chart.js in the <a href="getting-started/usage.html">usage documentation</a></p> <pre><code class="lang-html"><span class="hljs-tag"><<span class="hljs-name">canvas</span> <span class="hljs-attr">id</span>=<span class="hljs-string">"myChart"</span> <span class="hljs-attr">width</span>=<span class="hljs-string">"400"</span> <span class="hljs-attr">height</span>=<span class="hljs-string">"400"</span>></span><span class="hljs-tag"></<span class="hljs-name">canvas</span>></span> <span class="hljs-tag"><<span class="hljs-name">script</span>></span><span class="javascript"> <span class="hljs-keyword">var</span> ctx = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">"myChart"</span>).getContext(<span class="hljs-string">'2d'</span>); <span class="hljs-keyword">var</span> myChart = <span class="hljs-keyword">new</span> Chart(ctx, { type: <span class="hljs-string">'bar'</span>, data: { labels: [<span class="hljs-string">"Red"</span>, <span class="hljs-string">"Blue"</span>, <span class="hljs-string">"Yellow"</span>, <span class="hljs-string">"Green"</span>, <span class="hljs-string">"Purple"</span>, <span class="hljs-string">"Orange"</span>], datasets: [{ label: <span class="hljs-string">'# of Votes'</span>, data: [<span class="hljs-number">12</span>, <span class="hljs-number">19</span>, <span class="hljs-number">3</span>, <span class="hljs-number">5</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>], backgroundColor: [ <span class="hljs-string">'rgba(255, 99, 132, 0.2)'</span>, <span class="hljs-string">'rgba(54, 162, 235, 0.2)'</span>, <span class="hljs-string">'rgba(255, 206, 86, 0.2)'</span>, <span class="hljs-string">'rgba(75, 192, 192, 0.2)'</span>, <span class="hljs-string">'rgba(153, 102, 255, 0.2)'</span>, <span class="hljs-string">'rgba(255, 159, 64, 0.2)'</span> ], borderColor: [ <span class="hljs-string">'rgba(255,99,132,1)'</span>, <span class="hljs-string">'rgba(54, 162, 235, 1)'</span>, <span class="hljs-string">'rgba(255, 206, 86, 1)'</span>, <span class="hljs-string">'rgba(75, 192, 192, 1)'</span>, <span class="hljs-string">'rgba(153, 102, 255, 1)'</span>, <span class="hljs-string">'rgba(255, 159, 64, 1)'</span> ], borderWidth: <span class="hljs-number">1</span> }] }, options: { scales: { yAxes: [{ ticks: { beginAtZero:<span class="hljs-literal">true</span> } }] } } }); </span><span class="hljs-tag"></<span class="hljs-name">script</span>></span> </code></pre> <h2 id="contributing">Contributing</h2> <p>Before submitting an issue or a pull request to the project, please take a moment to look over the <a href="https://github.com/chartjs/Chart.js/blob/master/docs/developers/contributing.md" target="_blank">contributing guidelines</a> first.</p> <p>For support using Chart.js, please post questions with the <a href="http://stackoverflow.com/questions/tagged/chartjs" target="_blank"><code>chartjs</code> tag on Stack Overflow</a>.</p> <h2 id="license">License</h2> <p>Chart.js is available under the <a href="http://opensource.org/licenses/MIT" target="_blank">MIT license</a>.</p> </section> </div> <div class="search-results"> <div class="has-results"> <h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1> <ul class="search-results-list"></ul> </div> <div class="no-results"> <h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1> </div> </div> </div> </div> </div> </div> <a href="getting-started/" class="navigation navigation-next navigation-unique" aria-label="Next page: Getting Started"> <i class="fa fa-angle-right"></i> </a> </div> <script> var gitbook = gitbook || []; 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