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😎 Give your xaringan slides some style
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xaringanthemer/reference/apply_alpha.html

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  1. <!DOCTYPE html>

  2. <!-- Generated by pkgdown: do not edit by hand --><html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><title>Add alpha to hex color — apply_alpha • xaringanthemer</title><!-- favicons --><link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png"><link rel="icon" type="”image/svg+xml”" href="../favicon.svg"><link rel="apple-touch-icon" sizes="180x180" href="../apple-touch-icon.png"><link rel="icon" sizes="any" href="../favicon.ico"><link rel="manifest" href="../site.webmanifest"><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.3.1/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.3.1/bootstrap.bundle.min.js"></script><link href="../deps/IBM_Plex_Mono-0.4.10/font.css" rel="stylesheet"><link href="../deps/Outfit-0.4.10/font.css" rel="stylesheet"><link href="../deps/font-awesome-6.5.2/css/all.min.css" rel="stylesheet"><link href="../deps/font-awesome-6.5.2/css/v4-shims.min.css" rel="stylesheet"><script src="../deps/headroom-0.11.0/headroom.min.js"></script><script src="../deps/headroom-0.11.0/jQuery.headroom.min.js"></script><script src="../deps/bootstrap-toc-1.0.1/bootstrap-toc.min.js"></script><script src="../deps/clipboard.js-2.0.11/clipboard.min.js"></script><script src="../deps/search-1.0.0/autocomplete.jquery.min.js"></script><script src="../deps/search-1.0.0/fuse.min.js"></script><script src="../deps/search-1.0.0/mark.min.js"></script><!-- pkgdown --><script src="../pkgdown.js"></script><link href="../extra.css" rel="stylesheet"><meta property="og:title" content="Add alpha to hex color — apply_alpha"><meta name="description" content="Applies alpha (or opacity) to a color in hexadecimal form by

  3. converting opacity in the [0, 1] range to hex in the [0, 255] range

  4. and appending to the hex color."><meta property="og:description" content="Applies alpha (or opacity) to a color in hexadecimal form by

  5. converting opacity in the [0, 1] range to hex in the [0, 255] range

  6. and appending to the hex color."><meta property="og:image" content="https://pkg.garrickadenbuie.com/xaringanthemer/logo.png"><meta name="twitter:card" content="summary"><meta name="twitter:creator" content="@grrrck"><meta name="twitter:site" content="@grrrck"></head><body>

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  48. <div class="row">

  49.   <main id="main" class="col-md-9"><div class="page-header">

  50.       <img src="../logo.png" class="logo" alt=""><h1>Add alpha to hex color</h1>

  51.       <small class="dont-index">Source: <a href="https://github.com/gadenbuie/xaringanthemer/blob/main/R/color.R" class="external-link"><code>R/color.R</code></a></small>

  52.       <div class="d-none name"><code>apply_alpha.Rd</code></div>

  53.     </div>

  54. 

  55.     <div class="ref-description section level2">

  56.     <p>Applies alpha (or opacity) to a color in hexadecimal form by

  57. converting opacity in the <code>[0, 1]</code> range to hex in the <code>[0, 255]</code> range

  58. and appending to the hex color.</p>

  59.     </div>

  60. 

  61.     <div class="section level2">

  62.     <h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>

  63.     <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">apply_alpha</span><span class="op">(</span><span class="va">color_hex</span>, opacity <span class="op">=</span> <span class="fl">0.5</span><span class="op">)</span></span></code></pre></div>

  64.     </div>

  65. 

  66.     <div class="section level2">

  67.     <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>

  68. 

  69. 

  70. <dl><dt id="arg-color-hex">color_hex<a class="anchor" aria-label="anchor" href="#arg-color-hex"></a></dt>

  71. <dd><p>A character string representing a hex color</p></dd>

  72. 

  73. 

  74. <dt id="arg-opacity">opacity<a class="anchor" aria-label="anchor" href="#arg-opacity"></a></dt>

  75. <dd><p>Desired opacity of the output color</p></dd>

  76. 

  77. </dl></div>

  78.     <div class="section level2">

  79.     <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>

  80.     <p>A character string with added opacity level as hexadecimal characters.</p>

  81.     </div>

  82. 

  83.     <div class="section level2">

  84.     <h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>

  85.     <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="va">blue</span> <span class="op">&lt;-</span> <span class="st">"#0e6ba8"</span></span></span>

  86. <span class="r-in"><span><span class="va">blue_transparent</span> <span class="op">&lt;-</span> <span class="fu">apply_alpha</span><span class="op">(</span><span class="va">blue</span><span class="op">)</span></span></span>

  87. <span class="r-in"><span></span></span>

  88. <span class="r-in"><span><span class="kw">if</span> <span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/ns-load.html" class="external-link">requireNamespace</a></span><span class="op">(</span><span class="st">"scales"</span>, quietly <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span><span class="op">)</span> <span class="op">{</span></span></span>

  89. <span class="r-in"><span>  <span class="fu">scales</span><span class="fu">::</span><span class="fu"><a href="https://scales.r-lib.org/reference/show_col.html" class="external-link">show_col</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="va">blue</span>, <span class="va">blue_transparent</span><span class="op">)</span><span class="op">)</span></span></span>

  90. <span class="r-in"><span><span class="op">}</span></span></span>

  91. <span class="r-plt img"><img src="apply_alpha-1.png" alt="" width="700" height="433"></span>

  92. </code></pre></div>

  93.     </div>

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  95.     </nav></aside></div>

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  97. 

  98.     <footer><div class="pkgdown-footer-left">

  99.   <p>Developed by <a href="https://www.garrickadenbuie.com" class="external-link">Garrick Aden-Buie</a>.</p>

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  103.   <p>Site built with <a href="https://pkgdown.r-lib.org/" class="external-link">pkgdown</a> 2.1.3.</p>

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