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| author | Bradley Taunt <bt@btxx.org> | 2024-07-02 14:22:21 -0400 |
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| committer | Bradley Taunt <bt@btxx.org> | 2024-07-02 14:22:21 -0400 |
| commit | 3f6a9546ec13063d0d5bdf21d30a93d3e8aa6050 (patch) | |
| tree | 947985c4eda1bceb1910bc01739c32fd0baad181 /build/posts/css-slope-graphs/index.html | |
| parent | 14074019d62d98885c4c764401a9e7e1fd129f79 (diff) | |
Diffstat (limited to 'build/posts/css-slope-graphs/index.html')
| -rw-r--r-- | build/posts/css-slope-graphs/index.html | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/build/posts/css-slope-graphs/index.html b/build/posts/css-slope-graphs/index.html deleted file mode 100644 index 205d544..0000000 --- a/build/posts/css-slope-graphs/index.html +++ /dev/null @@ -1,243 +0,0 @@ -<!doctype html> -<html lang="en"> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <meta name="color-scheme" content="dark light"> - <link rel="icon" href="data:,"> - <title>CSS Slope Graphs</title> - <link href="/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" /> - <link href="/rss.xml" type="application/rss+xml" rel="alternate" title="RSS feed for blog posts" /> -<style>*{box-sizing:border-box;}body{font-family:sans-serif;line-height:1.33;margin:0 auto;max-width:650px;padding:1rem;}blockquote{background:rgba(0,0,0,0.1);border-left:4px solid;padding-left:5px;}img{max-width:100%;}pre{border:1px solid;overflow:auto;padding:5px;}table{text-align:left;width:100%;}.footnotes{font-size:90%;}</style> -</head> - -<nav> - <a href="#menu">Menu ↓</a> -</nav> - -<main> -<h1 id="css-slope-graphs">CSS Slope Graphs</h1> -<p>2021-06-07</p> -<p><em>I am a huge sucker for simplistic and beautifully designed visual data on the web</em>. Most data tends to be graphed via line or bar systems - which is fine - but I think slope graphs are highly underrated. Let’s change that, shall we?</p> -<h2 id="the-demo">The Demo</h2> -<p>I’m basing this demo off the design patterns found in <a href="https://www.edwardtufte.com/tufte/books_vdqi">Edward Tufte’s visualization work</a>, specifically his slope graph designs:</p> -<p><a href="https://codepen.io/bradleytaunt/pen/jOBzXMe">Live CodePen Example</a></p> -<h2 id="the-html">The HTML</h2> -<p>For this concept we will actually be building this graph out of <code>tables</code> - crazy, right? The greatest benefit of rendering all the data inside of a <code>table</code> element is the ability to easily support smaller screens and mobile devices. Larger viewports will get to see the pretty slope graph, while those below a certain threshold will view a simple table.</p> -<p>(But more on that in the CSS section)</p> -<pre><code><p>Sales of the leading frozen pizza brands of the United States from 2011 to 2017 (in million US dollars) <br><em>Source: Statisa 2018</em></p> -<table> - <thead> - <tr> - <th>Pizza Brand</th> - <th>2011</th> - <th>2017</th> - </tr> - </thead> - <tbody> - <tr> - <td data-set="677.0">DiGiorno</td> - <td><span>677.0</span></td> - <td data-name="DiGiorno">1014.6</td> - </tr> - <tr> - <td data-set="294.8">Private Label</td> - <td><span>294.8</span></td> - <td data-name="Private Label">524.8</td> - </tr> - <tr> - <td data-set="286.1">Red Baron</td> - <td><span>286.1</span></td> - <td data-name="Red Baron">572.3</td> - </tr> - <tr> - <td data-set="257.9">Tombstone</td> - <td><span>257.9</span></td> - <td data-name="Tombstone">270.6</td> - </tr> - <tr> - <td data-set="164.5">Totino's Party Pizza</td> - <td><span>164.5</span></td> - <td data-name="Totino's Party Pizza">347.2</td> - </tr> - </tbody> -</table> -</code></pre> -<p>As you can see, nothing too fancy is happpening here. Pay close attention to the <code>data-set</code> and <code>data-name</code> variables though - those will be important for the CSS portion of this design, mainly the rendering of the line elements.</p> -<h2 id="the-css">The CSS</h2> -<p>To avoid overwhelming your brain all-at-once, let’s break the CSS down into bite-sized chunks, starting with the base styling:</p> -<pre><code>@import url('https://opentype.netlify.com/et-book/index.css'); -* { - box-sizing: border-box; -} - -html { - height: 100%; -} - -body { - background: #fffff8; - font-family: "et-book", serif; - height: 100%; - margin: 0 auto; - max-width: 800px; - padding: 0 0.5rem; -} - -p { - font-size: 18px; - margin: 4rem 0 6rem; -} - -table { - border-collapse: collapse; - text-align: left; - width: 100%; -} -</code></pre> -<p>Pretty basic stuff.</p> -<p>Now we need to design how our slope graph will look on larger screens / desktops. For this instance, we will target these larger devices with a <code>min-width</code> media query of <code>800px</code>. The rest of the CSS might look a little confusing but I assure you it is quite simple.</p> -<ol> -<li><p>On larger devices we hide the first <code>thead tr th</code> element with <code>display: none</code></p></li> -<li><p>The first and second <code>td</code> elements inside each <code>tbody</code> row need to be set as <code>position: absolute</code> to avoid duplicate content</p></li> -<li><p>The inner <code>span</code> that we include in our HTML inside the second <code>tbody tr td</code> also needs to be <code>display: none</code></p></li> -<li><p>Remember that <code>data-set</code> variable? We now use that for our <code>:before</code> pseudo element for <code>table tbody tr td:nth-of-type(1)</code></p></li> -<li><p>Remember that <code>data-name</code> variable? We now use that for our <code>:before</code> pseudo element for <code>table tbody tr td:nth-of-type(3)</code></p></li> -<li><p>After that, you can see the simple customization we include to render the angle / position of the slope lines and the corresponding labels</p> -<p>@media(min-width:800px) { - table { - display: block; - position: relative; - margin-bottom: 25rem; - }</p> -<pre><code>table thead th { - border-bottom: 1px solid lightgrey; - font-size: 24px; - position: absolute; - top: -50px; - width: 45%; -} -table thead th:nth-child(1){ display: none; } -table thead th:nth-child(2){ left: 0; } -table thead th:nth-child(3){ right: 0; text-align: right; } - -table tbody tr td:nth-of-type(1), -table tbody tr td:nth-of-type(2) { position: absolute;} - -table tbody tr td:nth-of-type(2) span { display: none; } -table tbody tr td:nth-of-type(1):before { - content: attr(data-set); - margin-right: 10px; - position: relative; -} - -table tbody tr td:nth-of-type(2) { padding-left: 10px; } - -table tbody tr td:nth-of-type(3) { - position: absolute; - right: 0; -} -table tbody tr td:nth-of-type(3):before { - content: attr(data-name); - margin-right: 10px; - position: relative; -} - -/* Custom individual slopes -- Left */ -tbody tr:nth-child(1) td:nth-child(1), -tbody tr:nth-child(1) td:nth-child(2) { top: 60px; } -tbody tr:nth-child(2) td:nth-child(1), -tbody tr:nth-child(2) td:nth-child(2) { top: 140px; } -tbody tr:nth-child(3) td:nth-child(1), -tbody tr:nth-child(3) td:nth-child(2) { top: 165px; } -tbody tr:nth-child(4) td:nth-child(1), -tbody tr:nth-child(4) td:nth-child(2) { top: 220px; } -tbody tr:nth-child(5) td:nth-child(1), -tbody tr:nth-child(5) td:nth-child(2) { top: 270px; } - -/* Custom individual slopes -- Right */ -[data-name="DiGiorno"] { top: 0; } -[data-name="Red Baron"] { top: 65px; } -[data-name="Private Label"] { top: 100px; } -[data-name="Tombstone"] { top: 180px; } -[data-name="Totino's Party Pizza"] { top: 150px; } - -/* The custom visual lines */ -tbody tr:after { - background: black; - content: ''; - height: 1px; - left: 14.5%; - position: absolute; - width: 70%; -} -tbody tr:nth-child(1):after { - top: 40px; - transform: rotate(-6deg); -} -tbody tr:nth-child(2):after { - left: 17.5%; - top: 130px; - transform: rotate(-4deg); - width: 65%; -} -tbody tr:nth-child(3):after { - left: 15%; - top: 125px; - transform: rotate(-10.25deg); - width: 70%; -} -tbody tr:nth-child(4):after { - left: 16%; - top: 210px; - transform: rotate(-4deg); - width: 68%; -} -tbody tr:nth-child(5):after { - left: 22%; - top: 222px; - transform: rotate(-16deg); - width: 56%; -} -</code></pre> -<p>}</p></li> -</ol> -<p>All that’s left are some minor styles to make everything look nice on mobile:</p> -<pre><code>@media(max-width:800px) { - p { - margin: 2rem 0; - } - table td, table th { - border-bottom: 1px solid grey; - padding: 10px; - } - table td:last-of-type, table th:last-of-type { - text-align: right; - } -} -</code></pre> -<h2 id="not-the-most-practical">Not the most practical</h2> -<p>This slope graph concept is far from perfect for use in real-world situations. The fact that you need to manually render each point of data yourself makes this implementation quite annoying for more in-depth projects.</p> -<p>But it was fun to mess around with and create, so who cares!</p> -<footer role="contentinfo"> - <h2>Menu Navigation</h2> - <ul id="menu"> - <li><a href="/">Home</a></li> - <li><a href="/projects">Projects</a></li> - <li><a href="/uses">Uses</a></li> - <li><a href="/wiki">Wiki</a></li> - <li><a href="/resume">Resume</a></li> - <li><a href="/colophon">Colophon</a></li> - <li><a href="/now">Now</a></li> - <li><a href="/donate">Donate</a></li> - <li><a href="/atom.xml">RSS</a></li> - <li><a href="#top">↑ Top of the page</a></li> - </ul> - <small> - Built with <a href="https://barf.btxx.org">barf</a>. <br> - Feeds: <a href="/atom.xml">Atom</a> & <a href="/rss.xml">RSS</a><br> - Maintained with ♥ for the web. <br> - Proud supporter of <a href="https://usefathom.com/ref/DKHJVX">Fathom</a> & <a href="https://nextdns.io/?from=74d3p3h8">NextDNS</a>. <br> - The content for this site is <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.<br> The <a href="https://git.sr.ht/~bt/bt.ht">code for this site</a> is <a href="https://git.sr.ht/~bt/bt.ht/tree/master/item/LICENSE">MIT</a>. - </small> -</footer>
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