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pie.html
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<!DOCTYPE html>
<html lang="en">
<head>
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<script data-no-optimize="1" data-cfasync="false">
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<meta charset="utf-8" />
<title>Pie Chart | the D3 Graph Gallery</title>
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<meta
name="description"
content="How to build a pie chart with Javascript and D3.js: from the most basic example to highly customized examples."
/>
<meta
name="keywords"
content="Data,Dataviz,Datavisualization,Javascript,D3,D3.js,pie chart"
/>
<meta name="author" content="Yan Holtz" />
<link rel="icon" href="img/logo/D3_single_small.png" />
<meta property="og:title" content="Pie Chart | the D3 Graph Gallery" />
<meta property="og:image" content="img/overview_RGG.png" />
<meta
property="og:description"
content="How to build a pie chart with Javascript and D3.js: from the most basic example to highly customized examples."
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<!-- Header -->
<header class="masthead" style="padding-top: 150px; padding-bottom: 80px">
<div class="textlanding">
<h1>Pie chart</h1>
<hr class="short_hr" />
<br />
<ul class="list-inline social-buttons">
<li class="list-inline-item">
<a href="https://twitter.com/R_Graph_Gallery">
<i class="fa fa-twitter"></i>
</a>
</li>
<li class="list-inline-item social-buttons">
<a href="https://github.com/holtzy">
<i class="fa fa-github" style="color: white"></i>
</a>
</li>
<li class="list-inline-item social-buttons">
<a href="https://www.linkedin.com/in/yan-holtz-2477534a/">
<i class="fa fa-linkedin"></i>
</a>
</li>
<li class="list-inline-item social-buttons">
<a href="https://www.yan-holtz.com">
<i class="fa fa-home"></i>
</a>
</li>
</ul>
<br /><br />
<p style="max-width: 700px; margin: auto">
This is the
<a href="https://www.data-to-viz.com/caveat/pie.html">pie chart</a>
section of the gallery. The pie chart is highly criticized in dataviz
for meaningful reasons. You should
<a href="https://www.data-to-viz.com/caveat/pie.html"
>read more about that</a
>
before making one.If you're sure about what you're doing, learn how to
build one with d3.js using the examples below.
</p>
</div>
</header>
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<!-- ======================== PORTFOLIO SECTION ============================ --><!-- Images must be 480 x 480, resize them with ./script_reformat_img.sh output_name.png -->
<section class="bg" id="portfolio" style="padding-top: 10px">
<div class="container">
<div class="mySeryTitle">Note</div>
<hr />
<p>
It is of interest to note that pie chart and
<a href="donut.html">donut chart</a> are built using exactly the same
process in d3.js. Thus, you probably want to visit the
<a href="donut.html">donut section</a> for more examples
</p>
<a class="btn btn-secondary btn-md text-uppercase" href="donut.html"
>Donut chart section</a
>
<br /><br /><br /><br />
<div class="mySeryTitle">Step by step</div>
<hr />
<p>
Building a pie chart in d3.js always start by using the
<code>d3.pie()</code> function. This function transform the
<u>value</u> of each group to a <u>radius</u> that will be displayed
on the chart. This radius is then provided to the
<a href="graph/shape.html#myarc">d3.arc()</a> function that draws on
arc per group.
</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/pie_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic</p>
<hr />
<p class="explanation_portfolio">
The most basic pie chart you can do in d3.js. Keeping only
the core code.
</p>
</div>
</div>
<img class="img-fluid" src="img/graph/pie_basic.png" alt="" />
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/pie_annotation.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Add annotation</p>
<hr />
<p class="explanation_portfolio">
How to use the centroid() function to add labels at the
right position of each slice.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/pie_annotation.png"
alt=""
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/pie_changeData.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Data input selection</p>
<hr />
<p class="explanation_portfolio">
Have a smooth transition between 2 datasets. Note that the
number of group can even be different from one dataset to
the other.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/pie_changeData.gif"
alt="a pie chart with input data selector"
/>
</a>
</div>
</div>
<br /><br /><br /><br />
<div class="mySeryTitle">Selection of blocks</div>
<hr />
<p>
A selection of examples showing the application of the basic concept
to real life dataset.
</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a
class="portfolio-link"
href="https://beta.observablehq.com/@mbostock/d3-pie-chart"
>
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Pie chart with annotation</p>
<hr />
<p class="explanation_portfolio">
A pie chart by Mike Bostock with fancy annotation for each
group.
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_pieChart.png"
alt="network graph les miserables"
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="http://bl.ocks.org/dbuezas/9306799">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Clean layout</p>
<hr />
<p class="explanation_portfolio">
Clean labeling of groups. Use d3 v3 though.
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_pieChartAnimation.png"
alt="network graph les miserables"
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a
class="portfolio-link"
href="https://bl.ocks.org/tezzutezzu/c2653d42ffb4ecc01ffe2d6c97b2ee5e"
>
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Pie chart with animation</p>
<hr />
<p class="explanation_portfolio">
Good illustration on how to animate transition between 2
input data.
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_pieChartAnim.png"
alt="network graph les miserables"
/>
</a>
</div>
</div>
</div>
</section>
<!-- ======================================================================= -->
<!-- ============================ RELATED SECTION ============================ -->
<section
class="bg-light"
id="portfolio_landing"
style="padding-top: 30px; padding-bottom: 30px"
>
<div class="container">
<p class="mySeryTitle">Related chart types</p>
<hr />
<div class="row">
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="treemap.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
</div>
</div>
<img class="img-fluid" src="img/section/Tree150.png" alt="" />
</a>
<div class="captionPortfolio">Treemap</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="donut.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
</div>
</div>
<img class="img-fluid" src="img/section/Doughnut150.png" alt="" />
</a>
<div class="captionPortfolio">Doughnut</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="pie.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
</div>
</div>
<img class="img-fluid" src="img/section/Pie150.png" alt="" />
</a>
<div class="captionPortfolio">Pie chart</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="dendrogram.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
</div>
</div>
<img
class="img-fluid"
src="img/section/Dendrogram150.png"
alt=""
/>
</a>
<div class="captionPortfolio">Dendrogram</div>
</div>
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<a class="portfolio-link" href="circularpacking.html">
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<div class="portfolio-hover-content">
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</div>
</div>
<img
class="img-fluid"
src="img/section/CircularPacking150.png"
alt=""
/>
</a>
<div class="captionPortfolio">Circular packing</div>
</div>
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<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
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