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<!DOCTYPE html>
<html>
<head>
<title>Taking Off with CSS and SVG Animation!</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/white-customized.css" id="theme">
<!-- Code syntax highlighting -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<div class="slides">
<!-- - - - - - - - - - - MAJOR SECTION SEPARATOR - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
<!--
<section>
<ul>
<li>Intro – why we did this??</li>
<li>HTML / CSS and the SVG icon (straightforward)</li>
<li>SVG – why it's cool, what it is?</li>
<li>Bezier curve – control points on our line</li>
<li>Penner's equations and easing functions – what's this about?</li>
<li>JavaScript - requestAnimationFrame maybe?</li>
<li>Events for user interaction – scroll (this updates our SVG)</li>
<li>Motion blur with SVG</li>
<li>Final code / working versions in CodePen?</li>
</ul>
</section>
-->
<section>
<h1 style="font-size:1.6em">Taking off with CSS and SVG animation!</h1>
<p><a href="https://dribbble.com/shots/2101933-GIF-for-Pull-Down-Space-Ship">
<img class="noborder nomargin" width="60%" src="images/orig-spaceship.gif">
</a></p>
<h2 class="subhead">
How to create this awesome <a href="https://dribbble.com/shots/2101933-GIF-for-Pull-Down-Space-Ship">space ship animation</a> by Toma Reznichenko
</h2>
<!--
<h3 class="subhead" style="font-size:0.76em;">By Liz Krane and Jim Thoburn</h3>
-->
</section>
<section>
<a href="https://dribbble.com/shots/2101933-GIF-for-Pull-Down-Space-Ship">
<img class="noborder" width="600" src="images/slowmo-spaceship.gif">
</a>
<p>The original animation was created in After Effects.</p>
</section>
<section>
<h2>Steps</h2>
<ol>
<li>Create the page elements with HTML and CSS.</li>
<li>Draw the graphics with SVG.</li>
<li>Make life-like animation with Penner’s easing equations.</li>
<li>Add a motion blur.</li>
<li>Let the user control the animation by scrolling.</li>
</ol>
</section>
<section>
<h2>Create the page elements</h2>
<div class="halves">
<pre style="margin:0; width:96%;"><code style="height: 500px; box-sizing: border-box;" class="smaller" data-trim contenteditable="">
<header>…</header>
<div class="refresh">
<svg viewbox="0 0 180 160">
<!-- Path data for the launch pad -->
</svg>
<svg viewBox="0 0 17.3 26.6">
<!-- Path data for the space ship -->
</svg>
</div>
<ul>
<li>…</li>
<li>…</li>
<li>…</li>
<li>…</li>
<li>…</li>
<li>…</li>
</ul>
</code></pre>
</div>
<div class="halves">
<iframe class="halves" style="height: 500px;" src="spaceship/step1.html"></iframe>
</div>
</section>
<section>
<h2 style="font-size:4em;">SVG</h2>
<h3>Scalable Vector Graphics for the web!</h3>
<ul>
<li>SVG images look beautiful at any size or pixel density.</li>
<li>An SVG image is just a text file.</li>
<li>The language looks a lot like HTML.</li>
<li>You can create an SVG by hand or with a tool like <a href="https://www.sketchapp.com">Sketch</a> or <a href="http://www.adobe.com/products/illustrator.html">Illustrator</a>.</li>
<li>They can be loaded from a separate file or embedded in an HTML document.</li>
<li>You can style them with CSS and script them with JavaScript.</li>
</ul>
</section>
<section>
<h2>Draw your space ship</h2>
<p style="margin-bottom:0;">Here’s one by <a href="https://thenounproject.com/search/?q=space+ship&i=243332">Guilherme Simoes from the Noun Project</a></p>
<div class="halves">
<pre><code class="smaller" data-trim contenteditable="">
<svg viewBox="0 0 17.3 26.6">
<style>
.ship-outline {
fill: rgba(0, 0, 0, 0.25);
}
.ship-panels {
fill: rgb(169, 206, 203);
}
.ship-fins {
fill: rgb(224, 71, 71);
}
.ship-window {
fill: rgb(220, 235, 234);
}
</style>
<path class="ship-outline" fill="black" d="M17.3,24.6c0,0.2-0.1,0.5-0.2,0.6c-0.1,0.1-0.2,0.1-0.3,0.2c-0.3,0.1-0.7,0.1-1-0.2
c-0.9-0.9-2.3-2.1-3.2-2.5c-0.7,0.4-1.5,0.7-2.5,0.9l0,1.8c0,0.3-0.1,0.6-0.4,0.9c-0.2,0.2-0.6,0.4-0.9,0.4H8.5
c-0.3,0-0.7-0.1-0.9-0.4c-0.2-0.2-0.4-0.6-0.4-0.9v-1.8c-1-0.1-1.9-0.5-2.5-0.9c-0.9,0.4-2.3,1.6-3.3,2.5c-0.3,0.2-0.6,0.3-1,0.2
C0.2,25.2,0,24.9,0,24.5c0.3-4.5,2.3-7,3-7.7c-0.2-1-0.3-2.2-0.3-3.3C2.4,7.2,4.4,2.6,8.5,0.1L8.7,0L9,0.2c4,2.4,6,7.1,5.7,13.4
c-0.1,1.2-0.2,2.3-0.4,3.3C15,17.6,17,20.1,17.3,24.6z M16.3,24.3c-0.2-3.1-1.4-5.1-2.2-6.1c-0.3,1.7-0.7,3.1-1,3.7
C14.2,22.4,15.4,23.5,16.3,24.3z M12.7,19.7c0.9-3.5,2-10.3-0.8-15.2C10.9,4.8,9.8,5,8.7,5C7.6,5,6.5,4.8,5.5,4.5
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c0.2,0.2,0.4,0.5,0.4,0.9l0,2.5C11,20.2,11.8,19.9,12.7,19.7L12.7,19.7z M12.1,21.8c0.1-0.2,0.2-0.6,0.3-1.1
c-0.8,0.2-1.6,0.4-2.4,0.5v1.3C10.9,22.4,11.6,22.2,12.1,21.8z M8.7,4c0.9,0,1.8-0.1,2.6-0.3c-0.7-1-1.6-1.8-2.6-2.5
C7.6,1.9,6.8,2.7,6.1,3.6C6.9,3.9,7.8,4,8.7,4z M9,25.3l0-7.6c0-0.1-0.1-0.2-0.2-0.2H8.5c-0.1,0-0.1,0-0.2,0.1
c-0.1,0.1-0.1,0.1-0.1,0.2l0,7.6c0,0.1,0.1,0.2,0.2,0.2h0.3C8.9,25.6,9,25.5,9,25.3z M7.3,22.6l0-1.3c-0.8-0.1-1.7-0.3-2.4-0.5
c0.1,0.5,0.3,0.9,0.3,1.1C5.7,22.2,6.4,22.4,7.3,22.6z M4.2,21.9c-0.2-0.7-0.6-2-0.9-3.7c-0.8,1-1.9,3-2.2,6.1
C1.9,23.4,3.1,22.4,4.2,21.9z"/>
<path class="ship-outline" fill="black" d="M11.3,7.3c0.7,0.7,1.1,1.6,1,2.5c0,1-0.4,1.9-1.1,2.5c-0.7,0.7-1.6,1.1-2.5,1c-1,0-1.9-0.4-2.5-1.1
s-1.1-1.6-1-2.5c0-1.9,1.7-3.6,3.6-3.6C9.7,6.2,10.6,6.6,11.3,7.3z M11.3,9.8c0-0.7-0.3-1.3-0.8-1.8c-0.5-0.5-1.1-0.8-1.8-0.8
C8,7.2,7.4,7.5,6.9,8S6.1,9.1,6.1,9.8c0,0.7,0.3,1.4,0.8,1.8s1.1,0.8,1.8,0.8C10.1,12.4,11.3,11.2,11.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M12.4,20.8c-0.1,0.5-0.3,0.9-0.3,1.1c-0.5,0.4-1.2,0.6-2.1,0.7v-1.3C10.9,21.2,11.7,21,12.4,20.8z"/>
<path class="ship-panels" fill="#ccc" d="M7.3,21.2l0,1.3c-0.8-0.1-1.5-0.4-2-0.8c-0.1-0.2-0.2-0.6-0.3-1.1C5.6,20.9,6.4,21.1,7.3,21.2z"/>
<path class="ship-panels" fill="#ccc" d="M11.9,4.5c2.8,4.8,1.7,11.7,0.8,15.2l0-0.1c-0.8,0.3-1.7,0.5-2.6,0.6l0-2.5c0-0.3-0.1-0.6-0.4-0.9
c-0.2-0.2-0.5-0.4-0.9-0.4H8.5c-0.7,0-1.2,0.6-1.3,1.2l0,2.5c-1-0.1-2-0.4-2.7-0.7C3.7,16,2.7,9.3,5.5,4.5C6.5,4.8,7.6,5,8.7,5
C9.8,5,10.9,4.8,11.9,4.5z M12.3,9.8c0-0.9-0.4-1.9-1-2.5S9.7,6.2,8.7,6.2c-1.9,0-3.6,1.7-3.6,3.6c0,1,0.4,1.9,1,2.5
s1.6,1.1,2.5,1.1c1,0,1.9-0.4,2.5-1C11.9,11.7,12.3,10.8,12.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M11.4,3.7C10.5,3.9,9.6,4,8.7,4C7.8,4,6.9,3.9,6.1,3.6c0.7-0.9,1.6-1.8,2.6-2.5C9.8,1.9,10.7,2.7,11.4,3.7z"
/>
<path class="ship-fins" fill="#333" d="M9.1,17.7l0,7.6c0,0.1-0.1,0.2-0.2,0.2H8.5c-0.1,0-0.2-0.1-0.2-0.2l0-7.6c0-0.1,0-0.1,0.1-0.2
c0,0,0.1-0.1,0.2-0.1h0.3C9,17.5,9.1,17.6,9.1,17.7z"/>
<path class="ship-fins" fill="#333" d="M3.2,18.1c0.3,1.7,0.7,3.1,0.9,3.7c-1,0.5-2.3,1.6-3.2,2.4C1.3,21.1,2.5,19.1,3.2,18.1z"/>
<path class="ship-fins" fill="#333" d="M14.1,18.2c0.8,1,1.9,3,2.2,6.1c-0.8-0.8-2.1-1.8-3.1-2.4C13.4,21.2,13.8,19.9,14.1,18.2z"/>
<path class="ship-window" fill="white" d="M10.5,8c0.5,0.5,0.8,1.1,0.8,1.8c0,1.4-1.2,2.6-2.6,2.6c-0.7,0-1.3-0.3-1.8-0.8s-0.8-1.1-0.8-1.8
c0-0.7,0.3-1.3,0.8-1.8S8,7.2,8.7,7.2C9.4,7.2,10.1,7.5,10.5,8z"/>
</svg>
</code></pre>
</div>
<div class="halves" style="margin-top:60px;">
<svg class="shapeship prelaunch-animation" id="spaceship" xmlns="http://www.w3.org/2000/svg" width="260" height="400" viewBox="0 0 17.3 26.6">
<!--
Created by Guilherme Simoes
from the Noun Project
https://thenounproject.com/search/?q=space+ship&i=243332
-->
<style>
.ship-outline {
fill: rgb(71, 79, 105);
}
.ship-panels {
fill: rgb(169, 206, 203);
}
.ship-fins {
fill: rgb(224, 71, 71);
}
.ship-window {
fill: rgb(220, 235, 234);
}
</style>
<g id="spaceship-group">
<path class="ship-outline" fill="black" d="M17.3,24.6c0,0.2-0.1,0.5-0.2,0.6c-0.1,0.1-0.2,0.1-0.3,0.2c-0.3,0.1-0.7,0.1-1-0.2
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C0.2,25.2,0,24.9,0,24.5c0.3-4.5,2.3-7,3-7.7c-0.2-1-0.3-2.2-0.3-3.3C2.4,7.2,4.4,2.6,8.5,0.1L8.7,0L9,0.2c4,2.4,6,7.1,5.7,13.4
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C7.6,1.9,6.8,2.7,6.1,3.6C6.9,3.9,7.8,4,8.7,4z M9,25.3l0-7.6c0-0.1-0.1-0.2-0.2-0.2H8.5c-0.1,0-0.1,0-0.2,0.1
c-0.1,0.1-0.1,0.1-0.1,0.2l0,7.6c0,0.1,0.1,0.2,0.2,0.2h0.3C8.9,25.6,9,25.5,9,25.3z M7.3,22.6l0-1.3c-0.8-0.1-1.7-0.3-2.4-0.5
c0.1,0.5,0.3,0.9,0.3,1.1C5.7,22.2,6.4,22.4,7.3,22.6z M4.2,21.9c-0.2-0.7-0.6-2-0.9-3.7c-0.8,1-1.9,3-2.2,6.1
C1.9,23.4,3.1,22.4,4.2,21.9z"/>
<path class="ship-outline" fill="black" d="M11.3,7.3c0.7,0.7,1.1,1.6,1,2.5c0,1-0.4,1.9-1.1,2.5c-0.7,0.7-1.6,1.1-2.5,1c-1,0-1.9-0.4-2.5-1.1
s-1.1-1.6-1-2.5c0-1.9,1.7-3.6,3.6-3.6C9.7,6.2,10.6,6.6,11.3,7.3z M11.3,9.8c0-0.7-0.3-1.3-0.8-1.8c-0.5-0.5-1.1-0.8-1.8-0.8
C8,7.2,7.4,7.5,6.9,8S6.1,9.1,6.1,9.8c0,0.7,0.3,1.4,0.8,1.8s1.1,0.8,1.8,0.8C10.1,12.4,11.3,11.2,11.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M12.4,20.8c-0.1,0.5-0.3,0.9-0.3,1.1c-0.5,0.4-1.2,0.6-2.1,0.7v-1.3C10.9,21.2,11.7,21,12.4,20.8z"/>
<path class="ship-panels" fill="#ccc" d="M7.3,21.2l0,1.3c-0.8-0.1-1.5-0.4-2-0.8c-0.1-0.2-0.2-0.6-0.3-1.1C5.6,20.9,6.4,21.1,7.3,21.2z"/>
<path class="ship-panels" fill="#ccc" d="M11.9,4.5c2.8,4.8,1.7,11.7,0.8,15.2l0-0.1c-0.8,0.3-1.7,0.5-2.6,0.6l0-2.5c0-0.3-0.1-0.6-0.4-0.9
c-0.2-0.2-0.5-0.4-0.9-0.4H8.5c-0.7,0-1.2,0.6-1.3,1.2l0,2.5c-1-0.1-2-0.4-2.7-0.7C3.7,16,2.7,9.3,5.5,4.5C6.5,4.8,7.6,5,8.7,5
C9.8,5,10.9,4.8,11.9,4.5z M12.3,9.8c0-0.9-0.4-1.9-1-2.5S9.7,6.2,8.7,6.2c-1.9,0-3.6,1.7-3.6,3.6c0,1,0.4,1.9,1,2.5
s1.6,1.1,2.5,1.1c1,0,1.9-0.4,2.5-1C11.9,11.7,12.3,10.8,12.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M11.4,3.7C10.5,3.9,9.6,4,8.7,4C7.8,4,6.9,3.9,6.1,3.6c0.7-0.9,1.6-1.8,2.6-2.5C9.8,1.9,10.7,2.7,11.4,3.7z"
/>
<path class="ship-fins" fill="#333" d="M9.1,17.7l0,7.6c0,0.1-0.1,0.2-0.2,0.2H8.5c-0.1,0-0.2-0.1-0.2-0.2l0-7.6c0-0.1,0-0.1,0.1-0.2
c0,0,0.1-0.1,0.2-0.1h0.3C9,17.5,9.1,17.6,9.1,17.7z"/>
<path class="ship-fins" fill="#333" d="M3.2,18.1c0.3,1.7,0.7,3.1,0.9,3.7c-1,0.5-2.3,1.6-3.2,2.4C1.3,21.1,2.5,19.1,3.2,18.1z"/>
<path class="ship-fins" fill="#333" d="M14.1,18.2c0.8,1,1.9,3,2.2,6.1c-0.8-0.8-2.1-1.8-3.1-2.4C13.4,21.2,13.8,19.9,14.1,18.2z"/>
<path class="ship-window" fill="white" d="M10.5,8c0.5,0.5,0.8,1.1,0.8,1.8c0,1.4-1.2,2.6-2.6,2.6c-0.7,0-1.3-0.3-1.8-0.8s-0.8-1.1-0.8-1.8
c0-0.7,0.3-1.3,0.8-1.8S8,7.2,8.7,7.2C9.4,7.2,10.1,7.5,10.5,8z"/>
</g>
</svg>
</div>
</section>
<section>
<h2>Draw your launch pad</h2>
<svg style="width: 100%" width="360" height="240" viewbox="0 0 120 80">
<path d="M 10 60 Q 60 80, 110 60" stroke="black" stroke-width="4" fill="transparent"></path>
</svg>
</section>
<section>
<h2>SVG <path> elements can be used to draw lines</h2>
<svg style="width: 100%" width="360" height="240" viewbox="0 0 120 80">
<path d="M 10 60, L 60 10, L 110 60" stroke="black" stroke-width="4" fill="transparent"></path>
</svg>
<pre><code data-trim contenteditable="">
<svg viewbox="0 0 120 120">
<path d="M 10 60, L 60 10, L 110 60"></path>
</svg>
</code></pre>
</section>
<section>
<h2>…and curves</h2>
<svg style="width: 100%" width="360" height="240" viewbox="0 0 120 80">
<path d="M 10 60, Q 60 10, 110 60" stroke="black" stroke-width="4" fill="transparent"></path>
</svg>
<pre><code data-trim contenteditable="">
<svg viewbox="0 0 120 120">
<path d="M 10 60, Q 60 10, 110 60"></path>
</svg>
</code></pre>
</section>
<section>
<h2 style="margin-top:2em; margin-bottom: 1.1em;">Curves are drawn between two points,<br />with a control point in between.</h2>
<svg width="400" height="400" viewbox="0 0 120 120" xmlns="http://www.w3.org/2000/svg">
<path d="M 10 60 Q 60 10, 110 60" stroke="black" fill="transparent"></path>
<path d="M 10 60 L 60 10 L 110 60" stroke="blue" fill="transparent"></path>
<circle fill="blue" cx="10" cy="60" r="5"></circle>
<circle fill="red" cx="60" cy="10" r="5"></circle>
<circle fill="blue" cx="110" cy="60" r="5"></circle>
</svg>
</section>
<section>
<h2 style="margin-top:1em; margin-bottom: 1.1em;width:98%;">As the control point moves, the curve moves with it.</h2>
<svg style="margin-top:-5em;" width="400" height="400" viewbox="0 0 120 120" xmlns="http://www.w3.org/2000/svg">
<path d="M 10 60 Q 60 110, 110 60" stroke="black" fill="transparent"></path>
<path d="M 10 60 L 60 110 L 110 60" stroke="blue" fill="transparent"></path>
<circle fill="blue" cx="10" cy="60" r="5"></circle>
<circle fill="red" cx="60" cy="110" r="5"></circle>
<circle fill="blue" cx="110" cy="60" r="5"></circle>
</svg>
</section>
<!--
<section>
<h2>Cubic bezier curves!! yayyy</h2>
</section>
<section>
<h2>Animating the line – linear</h2>
</section>
-->
<section>
<h2>Animating with easing functions</h2>
<!--
<p>Robert Pennner wrote these for ActionScript in Flash, but they work just as well in JavaScript.</p>
-->
<p><a href="http://robertpenner.com/easing/">http://robertpenner.com/easing/</a></p>
</section>
<section>
<h2>Objects in real life … almost never move at a constant speed.</h2>
<p>Easing functions specify the rate of change of a parameter over time.</p>
<p><a href="http://easings.net">http://easings.net</a></p>
</section>
<section>
<h2>Linear</h2>
<img src="images/easings/linear.png" width="500" alt="Linear" />
<pre><code class="js" data-trim contenteditable="">
function linear (t, b, c, d) {
return c * (t / d) + b;
}
</code></pre>
</section>
<section>
<h2>Ease In</h2>
<img src="images/easings/ease-in-quint.png" width="500" alt="Ease in Quint" />
<pre><code class="js" data-trim contenteditable="">
function easeInQuint (t, b, c, d) {
return c*(t/=d)*t*t*t*t + b;
}
</code></pre>
</section>
<section>
<h2>Ease Out Elastic</h2>
<img src="images/easings/ease-in-out-elastic.png" width="500" alt="Ease In Out Elastic" />
<pre style="margin-top:0;"><code class="smaller" data-trim contenteditable="">
function easeOutElastic (t, b, c, d) {
var s=1.70158;var p=0;var a=c;
if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3;
if (a < Math.abs(c)) { a=c; var s=p/4; }
else var s = p/(2*Math.PI) * Math.asin (c/a);
return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
}
</code></pre>
</section>
<section>
<h2>Easing functions visualized</h2>
<img src="images/easings.png" width="500" alt="Easings" />
<p><a href="http://easings.net">http://easings.net</a></p>
</section>
<!--
<p><a href="http://gsgd.co.uk/sandbox/jquery/easing/">http://gsgd.co.uk/sandbox/jquery/easing/</a></p>
-->
<!--
<p>@t is the current time (or position) of the tween. This can be seconds or frames, steps, seconds, ms, whatever – as long as the unit is the same as is used for the total time</p>
<p>@b is the beginning value of the property.</p>
<p>@c is the change between the beginning and destination value of the property.</p>
<p>@d is the total time of the tween.</p>
-->
<!--
<section>
<h3>jQuery easing functions (bounce)</h3>
<pre><code class="smaller" data-trim contenteditable="">
function easeInOutBounce (t, b, c, d) {
if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
}
</code></pre>
<p><a href="http://gsgd.co.uk/sandbox/jquery/easing/">http://gsgd.co.uk/sandbox/jquery/easing/</a></p>
</section>
-->
<!--
<section>
<h3>maybe compare: linear vs ease </h3>
</section>
<section>
<h3>Animating the spaceship to move with the line</h3>
</section>
-->
<!--
<section>
<h3>Particles!! Yay Bubbles</h3>
<div class="halves">
<iframe class="halves" style="height: 500px;" src="spaceship/bubbles.html"></iframe>
</div>
<div class="halves">
<pre><code class="smaller" data-trim contenteditable="">
.bubble {
background: rgba(69, 111, 168, 0.9);
border-radius: 50%;
width: 1.5em;
height: 1.5em;
display: inline-block;
animation: float 1s both linear;
}
</code></pre>
</div>
</section>
-->
<section>
<h2>Make the animation interactive with browser events</h2>
</section>
<section>
<h2>Scroll-based animation</h2>
<img src="images/scroll.png" height="500" />
</section>
<section>
<h2 style="margin-bottom:1em;">Listening to scroll position</h2>
<pre><code data-trim contenteditable="">
window.addEventListener('scroll', function(e) {
var scrollY = getScrollY();
if (scrollY < refreshHeight) {
animateByScroll(scrollY);
}
});
</code></pre>
</section>
<section>
<h2 style="margin-bottom:1em;">Animating by scroll position</h2>
<pre><code style="font-size:0.8em;" data-trim contenteditable="">
function animateByScroll(scrollY) {
var progress = refreshHeight - scrollY;
var duration = refreshHeight;
var propertyStart = 80;
var propertyDestination = 130;
nextValue = Math.floor(easeInQuint(
progress,
propertyStart,
propertyDestination - propertyStart,
duration));
svg.setAttribute('d',
'M 0 80 V 0 H 180 V 80 M180 80 Q 95 ' + nextValue + ' 0 80');
}
</code></pre>
</section>
<section>
<h2>Add a motion blur</h2>
<div class="halves" style="width:60%;margin-top:10px;">
<pre style="width:100%;"><code style="font-size:0.8em;" data-trim contenteditable="">
<svg xmlns="http://www.w3.org/2000/svg"
version="1.1">
<defs>
<filter id="blur">
<feGaussianBlur in="SourceGraphic"
stdDeviation="0,12" />
</filter>
</defs>
</svg>
<g filter="url(#blur)">
<!-- path data is in here -->
</g>
</code></pre>
</div>
<div class="halves" style="width:40%;margin-top:10px;">
<svg class="shapeship prelaunch-animation" id="spaceship" xmlns="http://www.w3.org/2000/svg" style="padding:20px;" width="260" height="400" viewBox="0 0 17.3 26.6">
<!--
Created by Guilherme Simoes
from the Noun Project
https://thenounproject.com/search/?q=space+ship&i=243332
-->
<defs>
<filter id="blur">
<feGaussianBlur in="SourceGraphic" stdDeviation="0,1" />
</filter>
</defs>
<style>
.ship-outline {
fill: rgb(71, 79, 105);
}
.ship-panels {
fill: rgb(169, 206, 203);
}
.ship-fins {
fill: rgb(224, 71, 71);
}
.ship-window {
fill: rgb(220, 235, 234);
}
</style>
<g filter="url(#blur)" id="spaceship-group">
<path class="ship-outline" fill="black" d="M17.3,24.6c0,0.2-0.1,0.5-0.2,0.6c-0.1,0.1-0.2,0.1-0.3,0.2c-0.3,0.1-0.7,0.1-1-0.2
c-0.9-0.9-2.3-2.1-3.2-2.5c-0.7,0.4-1.5,0.7-2.5,0.9l0,1.8c0,0.3-0.1,0.6-0.4,0.9c-0.2,0.2-0.6,0.4-0.9,0.4H8.5
c-0.3,0-0.7-0.1-0.9-0.4c-0.2-0.2-0.4-0.6-0.4-0.9v-1.8c-1-0.1-1.9-0.5-2.5-0.9c-0.9,0.4-2.3,1.6-3.3,2.5c-0.3,0.2-0.6,0.3-1,0.2
C0.2,25.2,0,24.9,0,24.5c0.3-4.5,2.3-7,3-7.7c-0.2-1-0.3-2.2-0.3-3.3C2.4,7.2,4.4,2.6,8.5,0.1L8.7,0L9,0.2c4,2.4,6,7.1,5.7,13.4
c-0.1,1.2-0.2,2.3-0.4,3.3C15,17.6,17,20.1,17.3,24.6z M16.3,24.3c-0.2-3.1-1.4-5.1-2.2-6.1c-0.3,1.7-0.7,3.1-1,3.7
C14.2,22.4,15.4,23.5,16.3,24.3z M12.7,19.7c0.9-3.5,2-10.3-0.8-15.2C10.9,4.8,9.8,5,8.7,5C7.6,5,6.5,4.8,5.5,4.5
C2.7,9.3,3.7,16,4.6,19.5c0.7,0.3,1.7,0.6,2.7,0.7l0-2.5c0-0.7,0.6-1.2,1.3-1.2h0.3c0.3,0,0.7,0.1,0.9,0.4
c0.2,0.2,0.4,0.5,0.4,0.9l0,2.5C11,20.2,11.8,19.9,12.7,19.7L12.7,19.7z M12.1,21.8c0.1-0.2,0.2-0.6,0.3-1.1
c-0.8,0.2-1.6,0.4-2.4,0.5v1.3C10.9,22.4,11.6,22.2,12.1,21.8z M8.7,4c0.9,0,1.8-0.1,2.6-0.3c-0.7-1-1.6-1.8-2.6-2.5
C7.6,1.9,6.8,2.7,6.1,3.6C6.9,3.9,7.8,4,8.7,4z M9,25.3l0-7.6c0-0.1-0.1-0.2-0.2-0.2H8.5c-0.1,0-0.1,0-0.2,0.1
c-0.1,0.1-0.1,0.1-0.1,0.2l0,7.6c0,0.1,0.1,0.2,0.2,0.2h0.3C8.9,25.6,9,25.5,9,25.3z M7.3,22.6l0-1.3c-0.8-0.1-1.7-0.3-2.4-0.5
c0.1,0.5,0.3,0.9,0.3,1.1C5.7,22.2,6.4,22.4,7.3,22.6z M4.2,21.9c-0.2-0.7-0.6-2-0.9-3.7c-0.8,1-1.9,3-2.2,6.1
C1.9,23.4,3.1,22.4,4.2,21.9z"/>
<path class="ship-outline" fill="black" d="M11.3,7.3c0.7,0.7,1.1,1.6,1,2.5c0,1-0.4,1.9-1.1,2.5c-0.7,0.7-1.6,1.1-2.5,1c-1,0-1.9-0.4-2.5-1.1
s-1.1-1.6-1-2.5c0-1.9,1.7-3.6,3.6-3.6C9.7,6.2,10.6,6.6,11.3,7.3z M11.3,9.8c0-0.7-0.3-1.3-0.8-1.8c-0.5-0.5-1.1-0.8-1.8-0.8
C8,7.2,7.4,7.5,6.9,8S6.1,9.1,6.1,9.8c0,0.7,0.3,1.4,0.8,1.8s1.1,0.8,1.8,0.8C10.1,12.4,11.3,11.2,11.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M12.4,20.8c-0.1,0.5-0.3,0.9-0.3,1.1c-0.5,0.4-1.2,0.6-2.1,0.7v-1.3C10.9,21.2,11.7,21,12.4,20.8z"/>
<path class="ship-panels" fill="#ccc" d="M7.3,21.2l0,1.3c-0.8-0.1-1.5-0.4-2-0.8c-0.1-0.2-0.2-0.6-0.3-1.1C5.6,20.9,6.4,21.1,7.3,21.2z"/>
<path class="ship-panels" fill="#ccc" d="M11.9,4.5c2.8,4.8,1.7,11.7,0.8,15.2l0-0.1c-0.8,0.3-1.7,0.5-2.6,0.6l0-2.5c0-0.3-0.1-0.6-0.4-0.9
c-0.2-0.2-0.5-0.4-0.9-0.4H8.5c-0.7,0-1.2,0.6-1.3,1.2l0,2.5c-1-0.1-2-0.4-2.7-0.7C3.7,16,2.7,9.3,5.5,4.5C6.5,4.8,7.6,5,8.7,5
C9.8,5,10.9,4.8,11.9,4.5z M12.3,9.8c0-0.9-0.4-1.9-1-2.5S9.7,6.2,8.7,6.2c-1.9,0-3.6,1.7-3.6,3.6c0,1,0.4,1.9,1,2.5
s1.6,1.1,2.5,1.1c1,0,1.9-0.4,2.5-1C11.9,11.7,12.3,10.8,12.3,9.8z"/>
<path class="ship-panels" fill="#ccc" d="M11.4,3.7C10.5,3.9,9.6,4,8.7,4C7.8,4,6.9,3.9,6.1,3.6c0.7-0.9,1.6-1.8,2.6-2.5C9.8,1.9,10.7,2.7,11.4,3.7z"
/>
<path class="ship-fins" fill="#333" d="M9.1,17.7l0,7.6c0,0.1-0.1,0.2-0.2,0.2H8.5c-0.1,0-0.2-0.1-0.2-0.2l0-7.6c0-0.1,0-0.1,0.1-0.2
c0,0,0.1-0.1,0.2-0.1h0.3C9,17.5,9.1,17.6,9.1,17.7z"/>
<path class="ship-fins" fill="#333" d="M3.2,18.1c0.3,1.7,0.7,3.1,0.9,3.7c-1,0.5-2.3,1.6-3.2,2.4C1.3,21.1,2.5,19.1,3.2,18.1z"/>
<path class="ship-fins" fill="#333" d="M14.1,18.2c0.8,1,1.9,3,2.2,6.1c-0.8-0.8-2.1-1.8-3.1-2.4C13.4,21.2,13.8,19.9,14.1,18.2z"/>
<path class="ship-window" fill="white" d="M10.5,8c0.5,0.5,0.8,1.1,0.8,1.8c0,1.4-1.2,2.6-2.6,2.6c-0.7,0-1.3-0.3-1.8-0.8s-0.8-1.1-0.8-1.8
c0-0.7,0.3-1.3,0.8-1.8S8,7.2,8.7,7.2C9.4,7.2,10.1,7.5,10.5,8z"/>
</g>
</svg>
</div>
<!--
<pre><code class="smaller" data-trim contenteditable="">
<svg xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="blur">
<feGaussianBlur in="SourceGraphic" stdDeviation="0,12" />
</filter>
</defs>
<g filter="url(#blur)">
<!-- path data is in here -->
</g>
</svg>
</code></pre>
-->
</section>
<section>
<h2>Putting it all together</h2>
<ul>
<li>Create your page with HTML, CSS and JavaScript.</li>
<li>
Use SVG to draw more complicated elements like curves,<br />
and to add effects like motion blur.
</li>
<li>Make life-like animation with Penner’s easing equations.</li>
<li>Listen for scroll events and use them as triggers for the animation.</li>
</ul>
</section>
<section>
<h2>Our Finished Code!</h2>
<p><a href="http://codepen.io/LearnToCodeLA/pen/WGAGbW">http://codepen.io/LearnToCodeLA/pen/WGAGbW</a></p>
<iframe class="noshadow noborder" height='600' scrolling='no' src='http://codepen.io/LearnToCodeLA/embed/WGAGbW/?height=500&theme-id=dark&default-tab=result&embed-version=2' frameborder='no' allowtransparency='true' allowfullscreen='true' style='width: 100%;'>See the Pen <a href='http://codepen.io/LearnToCodeLA/pen/WGAGbW/'>WGAGbW</a> by Learn to Code LA (<a href='http://codepen.io/LearnToCodeLA'>@LearnToCodeLA</a>) on <a href='http://codepen.io'>CodePen</a>.</iframe>
</section>
<section>
<h2>Get these slides on GitHub</h2>
<p><a href="https://github.com/learntocodela/math-animation">https://github.com/learntocodela/math-animation</a></p>
</section>
<section>
<h1 style="margin-bottom: 60px;">Futher Reading</h1>
<h3>Understanding Easing</h3>
<p><a href="http://upshots.org/actionscript/jsas-understanding-easing">http://upshots.org/actionscript/jsas-understanding-easing</a></p>
<h3>SVG Paths</h3>
<p><a href="https://developer.mozilla.org/en-US/docs/Web/SVG/Element/path">https://developer.mozilla.org/en-US/docs/Web/SVG/Element/path</a></p>
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