2017-03-05 18:33:44 -08:00
<!doctype html>
< html >
< head >
< meta charset = "utf-8" >
< title > A Primer on Bézier Curves< / title >
2017-03-07 08:27:07 -08:00
< script >
(function() {
// force https except during local testing (e.g. not on port 80)
let loc = window.location.toString();
if (loc.indexOf(":8080") === -1 & & loc.indexOf("http:") === 0) {
window.location = loc.replace("http:","https:");
}
// if we're still here, load google analytics
2017-04-02 22:23:59 -07:00
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-69475841-3', 'auto');
ga('send', 'pageview');
2017-03-07 08:27:07 -08:00
}());
< / script >
2017-03-05 18:33:44 -08:00
<!-- optional <base> element to make sure localised content still uses the base location -->
< base href = ".." >
<!-- mobile optimize -->
< meta name = "viewport" content = "width=800, initial-scale=1.0" >
<!-- opengraph information -->
< meta property = "og:title" content = "A Primer on Bézier Curves" >
< meta property = "og:type" content = "text" >
< meta property = "og:url" content = "http://pomax.github.io/bezierinfo" >
< meta property = "og:description" content = "A detailed explanation of Bézier curves, and how to do the many things that we commonly want to do with them." >
< meta property = "og:locale" content = "en_GB" >
< meta property = "og:type" content = "article" >
< meta property = "og:published_time" content = "2013-06-13 12:00:00" >
< meta property = "og:author" content = "Mike 'Pomax' Kamermans" >
< meta property = "og:section" content = "Bézier Curves" >
< meta property = "og:tag" content = "Bézier Curves" >
< style >
html, body, article { height: 100%; margin: 0; }
body { width: 800px; margin: auto; font-size: 4.25mm!important; }
< / style >
< link rel = "stylesheet" href = "stylesheets/style.css" >
< / head >
< body >
<!-- referral tracking, because I like knowing who's linking to my book -->
< script src = "lib/site/referrer.js" async > < / script >
< div class = "dev" style = "display:none;" >
< style >
div.dev {
background: rgb(43, 49, 95);
color: rgb(81, 181, 255);
position: fixed;
transform: rotate(-45deg);
width: 22em;
text-align: center;
top: 4em;
left: -6em;
font-variant: small-caps;
font-weight: bolder;
font-family: Helvetica;
box-shadow: 0px 5px 7px 2px rgba(0, 0, 0, 0.3);
}
< / style >
DEV PREVIEW ONLY
< script >
(function() {
var loc = window.location.toString();
if(loc.indexOf('localhost')!==-1 || loc.indexOf('-2')!==-1) {
var e = document.querySelector('div.dev');
e.removeAttribute("style");
}
}());
< / script >
< / div >
<!-- Because people probably want to share this article -->
< div class = "sharebuttons" >
< style >
div.sharebuttons {
position: fixed;
top: 1rem;
left: 1rem;
padding: 0.1em;
background: white;
}
div.sharebuttons img {
min-width: 1.25rem;
min-height: 1.25rem;
max-height: 1.25rem;
}
}
< / style >
2017-04-12 09:55:28 -07:00
< a class = "social reddit" href = "https://www.reddit.com/submit?url=https://pomax.github.io/bezierinfo&title=A Primer on Bézier Curves&text=A free, online book for when you really need to know how to do Bézier things." >
2017-03-05 18:33:44 -08:00
< img src = "https://www.redditstatic.com/spreddit1.gif" alt = "submit to reddit" title = "submit to reddit" >
< / a >
2017-04-12 09:55:28 -07:00
< a class = "social hn" href = "https://news.ycombinator.com/submitlink?u=https://pomax.github.io/bezierinfo&t=A Primer on Bézier Curves" >
2017-03-05 18:33:44 -08:00
< img src = "https://news.ycombinator.com/y18.gif" alt = "submit to hacker news" title = "submit to hacker news" >
< / a >
2017-04-12 09:55:28 -07:00
< a class = "social twitter" href = "https://twitter.com/intent/tweet?hashtags=bezier,curves,maths&original_referer=https://pomax.github.io/bezierinfo&text=Reading%20%22A%20Primer%20on%20Bezier%20Curves%22%20by%20@TheRealPomax%20over%20on%20https://pomax.github.io/bezierinfo" >
2017-03-05 18:33:44 -08:00
< img src = "images/twitter.ico" alt = "tweet your read" title = "tweet your read" >
< / a >
< / div >
< article >
< div id = "article" >
<!-- these rules will get overwritten by the style in the article.js React bundle -->
< style >
header h1, header h2 { text-align: center; }
header h1 { font-size: 300%; margin: 0.2em; }
p.jsnote { margin: 2em; text-align: justify; }
p.jsnote:first-child { width: 13em; margin: auto; }
< / style >
< header >
< h1 > A Primer on Bézier Curves< / h1 >
< h2 > A free, online book for when you really need to know how to do Bézier things.< / h2 >
< / header >
<!-- This content only shows for as long as JS/React hasn't loaded the page content -->
< section >
< p class = "jsnote" > Loading the article< span id = "loader" > ...< / span > < / p >
< p class = "enabling jsnote" > If you have JavaScript disabled, you'll have to enable it, as this book heavily relies on JS rendering, both for the base content (it's been written as a React application) and all the interactive graphics, which rely on JS not just for the user interaction but also for the live-drawing (none of the graphics in this book are flat images, they're all live-rendered).< / p >
< script > var n = document . querySelector ( ".enabling" ) ; n . parentNode . removeChild ( n ) ; ( function update ( el , str ) { str = ( str . length === 3 ) ? '' : str + '.' ; el . textContent = str ; setTimeout ( function ( ) { update ( el , str ) ; } , 333 ) ; } ( document . querySelector ( "#loader" ) , "..." ) ) ; < / script >
< / section >
<!-- this content is retrieved from the preface section -->
{{ PREFACE }}
< / div >
< / article >
<!-- the actual article is a JS bundle -->
< script src = "{{ locale }}/article.js" async > < / script >
< / body >
< / html >
