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index.html
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index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Leaflet vs OL3</title>
<meta name="description" content="A framework for easily creating beautiful presentations using HTML">
<meta name="author" content="Hakim El Hattab">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/black.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]-->
<style>
.reveal section img.logo {
height: 1em;
width: 1em;
vertical-align: middle;
margin:0;
border: none;
}
.reveal section h1 img.logo {
height: 3em;
width: 3em;
vertical-align: middle;
border: none;
}
.reveal .slide-background {
/* background: linear-gradient(90deg, #4a9634, #4a9634 35%, #1F6B75 65%,#1F6B75); */
background: linear-gradient(90deg, #28511c 35%, #154a51 65%);
}
.reveal table.advisory th, .reveal table.advisory td {
text-align: center;
}
.reveal table.advisory th {
background: black; color: white;
padding: 0;
border: none;
}
.reveal table.advisory td {
background: white; color: black;
}
li:before {
content: '😐' /*'●'*/;
}
li.good:before {
content: '☺';
}
li.bad:before {
content: '☹';
}
li {
list-style-type: none;
}
table.small,
tr.small {
font-size: 75%;
}
.reveal table th, .reveal table td {
border: none;
}
table.comparison {
border-collapse: separate;
}
table.comparison tr td {
width: 50%;
max-width: 40vw;
background-repeat: none;
position: relative;
padding: 0;
text-align: center;
vertical-align:middle;
}
table.comparison tr td pre {
margin:0;
width:100%;
max-width: 50vmin;
}
table.comparison tr td iframe {
width:40vmin;
height:40vmin;
max-height: 100%;
max-width:100%;
}
table.comparison tr td:first-child {
/* background-color: #28511c; */
border: #4a9634 0.1em solid;
/* background: url('img/leaflet.svg');
background-size: contain;*/
}
/* Leaflet transparent logo background */
table.comparison tr td:first-child:after {
content : "";
display: block;
position: absolute;
top: 0;
left: 0;
background-image: url('img/leaflet.svg');
background-repeat: no-repeat;
background-size: contain;
background-position: center center;
width: 100%;
height: 100%;
opacity : 0.15;
z-index: -1;
}
table.comparison tr td:last-child {
/* background-color: #154a51; */
border: #1F6B75 0.1em solid;
/* background: url('img/ol3.svg'); */
/* background-size: contain; */
}
/* OL3 transparent logo background */
table.comparison tr td:last-child:after {
content : "";
display: block;
position: absolute;
top: 0;
left: 0;
background-image: url('img/ol3.svg');
background-repeat: no-repeat;
background-size: contain;
background-position: center center;
width: 100%;
height: 100%;
opacity : 0.15;
z-index: -1;
}
/* Counters for file sizes */
div.counter.ol3 {
display: inline-block;
width: 1em;
height: 1em;
background: url(img/ol3.svg);
background-size: cover;
}
div.counter.leaf {
display: inline-block;
width: 1em;
height: 1em;
background: url(img/leaflet.svg);
background-size: cover;
}
code {
background: rgba(80, 80, 80, 0.5);
}
.reveal pre code {
background: rgba(63, 63, 63, 0.9);
font-size: 1.2em;
}
.coffeescript .javascript, .javascript .xml, .tex .hljs-formula, .xml .javascript, .xml .vbscript, .xml .css, .xml .hljs-cdata {
opacity: 0.9;
}
</style>
<!-- <link rel="stylesheet" href="leaflet-v1.0.0-beta1/leaflet.css" />
<script src="leaflet-v1.0.0-beta1/leaflet-src.js"></script>-->
<!-- <link rel="stylesheet" href="ol3-v3.8.2/css/ol.css" type="text/css">
<script src="ol3-v3.8.2/build/ol-debug.js" type="text/javascript"></script>-->
</head>
<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section data-background="linear-gradient(left, green, green 45%, blue 55%, blue)">
<section>
<h1><img class='logo' src='img/leaflet.svg'> vs <img class='logo' src='img/ol3.svg'></h1>
<p>
Based on the woes of <br>
Iván Sánchez Ortega, <a href="http://www.mazemap.no"><img class='logo' src='img/mazemap-logo.png'>MazeMap</a>
</p>
</section>
<section>
<img src='img/troymcclure.jpg'>
<p>You might remember me from other FOSS4G talks such as</p>
</section>
<section>
<ul>
<li class='fragment good'> Another game of chess, professor Falken?
<li class='fragment good'> GeoGlobalDomination: The Musical
<li class='fragment good'> Up all night (to get mapping)
</ul>
</section>
<section>
<img src='img/pointcloud-the-musical.jpg'>
</section>
</section>
<section>
<section>
<h3 style='font-size: 300%'>
<table class='advisory'>
<tr><th>PARENTAL</td></tr>
<tr><td>BIASED<br>OPINION</td></tr>
<tr><th>ADVISORY</td></tr>
</table>
</h3>
</section>
<section>
<h3>Timeline</h3>
<ul>
<li class='fragment'>2005: Created my own <code><canvas></code>-based map
<li class='fragment'>2014: Worked heavily with <img class='logo' src='img/ol2.svg'>
<li class='fragment'>2015-01: Start working for <img class='logo' src='img/mazemap-logo.png'>
</ul>
</section>
<section>
<img src='img/mazemap-web.png'>
</section>
<section>
<h3>Timeline</h3>
<ul>
<li class=''>2005: Created my own <code><canvas></code>-based map
<li class=''>2014: Worked heavily with <img class='logo' src='img/ol2.svg'>
<li class=''>2015-01: Start working for <img class='logo' src='img/mazemap-logo.png'>
<li class='fragment'>2015-03: Consider redoing the entire web app
<li class='fragment'>2015-04-23: Submit "<img class='logo' src='img/leaflet.svg'> vs <img class='logo' src='img/ol3.svg'>" talk
<li class='fragment'>2015-04-27: Became a <img class='logo' src='img/leaflet.svg'> core dev<br>
<img src='img/github-leaflet-invitation.png'>
</ul>
</section>
</section>
<!-- Not about... -->
<section>
<section>
<h1>What this talk is NOT about</h1>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>Stamen's <a href='http://modestmaps.com/'>ModestMaps</a></p>
<ul>
<li class='good'>Minimalistic (10KB!) map library
<li class='bad'><em>Too</em> basic
<li class='bad'>No zoom animations
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>MapZen's <a href='https://tangrams.github.io/carousel/?crosshatch#15.9/63.4279/10.4035'>Tangram</a></p>
<ul>
<li class='good'>WebGL goodness
<li class='good'>Vector tiles
<li class='good'>Custom shaders
<li class='bad'>Not trivial to add own data
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>Mapbox's <a href='https://www.mapbox.com/blog/mapbox-gl/'>MapboxGL</a> (Based on <img class='logo' src='img/leaflet.svg'>)</p>
<ul>
<li class='good'>WebGL goodness
<li class='good'>Vector tiles
<li class='good'>Stable, well-engineered shaders
<li class='bad'>Depends too much on Mapbox
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>ESRI <a href='https://developers.arcgis.com/javascript/'>Javascript API</a></p>
<ul>
<li class='good'>Full 3D support (globe)
<li class='bad'>Not open source
<li class='bad'>Plays well with ESRI services, not so well with anything else
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>Google Maps API</p>
<ul>
<li class='good'>Full 3D support (globe)
<li class='bad'>Not open source
<li class='bad'>Depends too much on Google
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p><a href='http://www.cartodb.com'>CartoDB</a></p>
<ul>
<li class='good'>Easy, gorgeous visualizations
<li class='bad'>Not a general-purpose mapping API
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p><a href='https://www.jasondavies.com/maps/waterman-butterfly/'>D3</a></p>
<ul>
<li class='good'>Awesome data visualizations
<li class='good'>Extremely customizable
<li class='bad'>Not a general-purpose mapping API
<li class='bad'>Not trivial to add raster
<li class='bad'>Not trivial to use standard interactions
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p><a href='http://www.cartodb.com'>ThreeJS</a></p>
<ul>
<li class='good'>WebGL goodness
<li class='good'>Used for indoor maps by MazeMap's competitors
<li class='bad'>A 3D API, not mapping API
<li class='bad'>Not trivial to add raster
<li class='bad'>Not trivial to use standard interactions
<li class='bad'>Uses 3D model formats, not GIS data formats
</ul>
</section>
<section>
<h3>This talk is NOT about:</h3>
<p>IndoorGML</p>
<ul>
<li class='bad'>No public IndoorGML implementations yet
<li class='bad'>No public IndoorGML showcase yet
</ul>
</section>
</section>
<!-- Hello map -->
<section>
<section>
<p>Copy-paste simplest tutorials and set coordinates for Seoul</p>
<table class='comparison'><tr><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='html'>
<!DOCTYPE html>
<html>
<head>
<title>Leaflet Minimal Example</title>
<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.css" />
<script src="http://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.js"></script>
</head>
<body>
<div id="leafmap" style="width: 600px; height: 400px"></div>
<script>
var map = L.map('leafmap').setView([37.152, 127.551], 8);
L.tileLayer('http://otile{s}.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.png', {
maxZoom: 18,
attribution: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a> — Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors',
}).addTo(map);
</script>
</body>
</html>
</code></pre>
</td><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='html'>
<!doctype html>
<html lang="en">
<head>
<title>OL3 minimal example</title>
<link rel="stylesheet" href="http://openlayers.org/en/v3.8.2/css/ol.css" type="text/css">
<script src="http://openlayers.org/en/v3.8.2/build/ol.js" type="text/javascript"></script>
</head>
<body>
<div id="ol3map" style='width: 600px; height: 400px'></div>
<script type="text/javascript">
var map = new ol.Map({
target: 'ol3map ',
layers: [
new ol.layer.Tile({
source: new ol.source.MapQuest({layer: 'osm'})
})
],
view: new ol.View({
center: ol.proj.transform([37.152, 127.551], 'EPSG:4326', 'EPSG:3857'),
zoom: 8
})
});
</script>
</body>
</html>
</code></pre>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<iframe src='frames/leaflet1.html'></iframe>
</td><td>
<!-- <iframe src='frames/ol3-1.html'></iframe> -->
<img src='img/ol3-error-1.png'>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<img src='img/brent-rambo-approves.gif'>
</td><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<iframe src='frames/leaflet1.html'></iframe>
</td><td>
<iframe src='frames/ol3-1.html'></iframe>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='html'>
view: new ol.View({
// center: ol.proj.transform([37.152, 127.551], 'EPSG:4326', 'EPSG:3857'),
center: ol.proj.transform([127.551, 37.152], 'EPSG:4326', 'EPSG:3857'),
zoom: 8
})
</code></pre>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<p>What the docs say:</p>
<p><pre><code>map.setView(latlng, zoom)</code></pre></p>
<p>What you must use:</p>
<p><pre><code>lat/lng</code></pre></p>
</td><td>
<p>What the docs say:</p>
<img src='img/ol3-latlng-docs.png' style='width: 35vh;'>
<p>What you must use:</p>
<p><pre><code>lon/lat</code></pre></p>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<img src='img/lol-guy.jpg' style='width: 25vh;'>
</td><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td></table>
</section>
<section>
<h3>Newbie friendliness</h3>
<table class='comparison'><tr><td>
<ul><li class='good'>Friendly for web professionals who don't care about <code>latLng</code> vs <code>lngLat</code>.
<li>Makes assumptions for the user.
</ul>
</td><td>
<ul><li class='bad'>Kinda need to be a GIS professional who know about SRSs.
<li>Makes <em>some</em> assumptions.
</ul>
</td></table>
</section>
</section>
<section>
<section>
<h3>Javascript</h3>
<p>Size of minified JS files</p>
<table class='comparison'><tr><td>
<h2>126.5KB</h2>
<div style='font-size: 200%'>
<div style='display: inline-block; width: 1em; height: 1em; background: url(img/leaflet.svg); background-size: cover;'></div>
</div>
</td><td>
<h2>465.3KB</h2>
<div style='font-size: 200%'>
<div style='display: inline-block; width: 1em; height: 1em; background: url(img/ol3.svg); background-size: cover;'></div>
<div style='display: inline-block; width: 1em; height: 1em; background: url(img/ol3.svg); background-size: cover;'></div>
<div style='display: inline-block; width: 1em; height: 1em; background: url(img/ol3.svg); background-size: cover;'></div>
<div style='display: inline-block; width: 0.67em; height: 1em; background: url(img/ol3.svg); background-size: cover;'></div>
</div>
</td></table>
<p>Number of classes/namespaces</p>
<table class='comparison'><tr><td>
<h2>52</h2>
<div style='font-size: 200%'>
<div style='display: inline-block; width: 1em; height: 1em; background: url(img/leaflet.svg); background-size: cover;'></div>
</div>
</td><td>
<h2>163</h2>
<div style='font-size: 200%'>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3' style='width: 0.13em; height'></div>
</div>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<img src='img/leaflet-plugins-header.png' style='width: 40vh;'>
</td><td>
<img src='img/openlayers3-custombuilds.png' style='width: 40vh;'>
</td><tr class='fragment'><td>
<ul>
<li class='bad'>Little built-in stuff
<li class='good'>Lots of plugins (200+)
</ul>
</td><td>
<ul>
<li class='good'>Lots of built-in stuff
<li class='bad'>Very few plugins <nobr><small>(<code>ol3-cesium</code>)</small></nobr>
</ul>
</td></tr><tr class='fragment'><td>
<ul>
<li class='good'>Leaflet.Omnivore (data formats)
<li class='good'>Leaflet.draw
<li class='good'>Leaflet.markercluster
<li class='good'>Leaflet.MapboxVectorTile
</ul>
</td><td>
<ul>
<li class='good'>Built-in
</ul>
</td></table>
</section>
<section>
<table class='comparison'><tr><td>
<ul>
<li class='good'>Can be made beefier...
<li class='fragment good'>...with any toolchain...<p>
<img class='logo' src='img/brunch-logo-napkin.svg'>
<img class='logo' src='img/grunt-logo.svg'>
<img class='logo' src='img/gulp-logo.svg'>
<img class='logo' src='img/bower-logo.svg'>
<img class='logo' src='img/requirejs.jpg'>
<img class='logo' src='img/Browserify.svg'>
</p>
<li class='fragment good'>...or with specific integration tools
<img class='logo' src='img/AngularJS-Shield-medium.png'>
<img class='logo' src='img/reactjs.png'>
<img class='logo' src='img/polymer.jpg'>
</li>
</ul>
</td><td>
<ul>
<li class='good'>Can be made skinnier...
<li class='fragment bad'>...only with the <img src='img/closure.png' class='logo'>Closure compiler...
<li class='fragment'>...which <em>might</em> fit within your toolchain
<li class='fragment bad'>...but most integration tools
<img class='logo' src='img/AngularJS-Shield-medium.png'>
<img class='logo' src='img/reactjs.png'>
<img class='logo' src='img/polymer.jpg'> or toolchains won't be able to slim it down without help
</ul>
</td></table>
</section>
<section>
<h3>Speaking of <img src='img/closure.png' class='logo'>...</h3>
Size of <em>unminified</em> files:
<table class='comparison'><tr><td>
<code>leaflet-src.js</code> <h3>223.6KB</h3>
<div style='font-size: 200%'>
<div class='counter leaf'></div>
</div>
</td><td>
<code>ol3-debug.js</code><h3>3.5MB</h3>
<div style='font-size: 200%'>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3'></div>
<div class='counter ol3' style='width: 0.21em;'></div>
</div>
</td></table>
</section>
<section>
<pre><code class='js'>
/**
* @const
* @type {number}
*/
goog.webgl.ZERO = 0;
/**
* @const
* @type {number}
*/
goog.webgl.ONE = 1;
</code></pre>
</section>
</section>
<section>
<section>
<h3>Coding patterns</h3>
<table class='comparison'><tr><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='js'>
var map = L.map('leafmap').setView([37.152, 127.551], 8);
L.tileLayer('http://otile{s}.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.png', {
maxZoom: 18,
attribution: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a> — Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors',
}).addTo(map);
</code></pre>
</td><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='js'>
var map = new ol.Map({
target: 'ol3map ',
layers: [
new ol.layer.Tile({
source: new ol.source.MapQuest({layer: 'osm'})
})
],
view: new ol.View({
center: ol.proj.transform([37.152, 127.551], 'EPSG:4326', 'EPSG:3857'),
zoom: 8
})
});
</code></pre>
</td></tr><tr class='fragment'><td>
<ul>
<li>Uses 2 classes (decorators)
<li>Object factories
<li class='good'>1 level of indentation
</ul>
</td><td>
<ul>
<li>Uses 5 classes
<li>Class constructors
<li class='bad'>3 level of indentation
</ul>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='js'>
ol.proj.transform( ol.geometry.point([37.152, 127.551], 'EPSG:4326'), 'EPSG:3857'),
</code></pre>
</td></tr>
</table>
</section>
<section>
<h3>Coding patterns</h3>
<table class='comparison'><tr><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='js'>
$.ajax('data/geojson/line-samples.geojson', {}, function(json){
var vectorLayer = L.geoJson(json, {
color: blue,
weight: 1,
fillColor: "rgba(0, 0, 255, 0.1)"
});
}):
</code></pre>
</td><td>
<pre><code data-trim style='font-size: 50%; line-height:100%' class='js'>
var vectorLines = new ol.layer.Vector({
source: new ol.source.Vector({
url: 'data/geojson/line-samples.geojson',
format: new ol.format.GeoJSON()
}),
style: [
new ol.style.Style({
stroke: new ol.style.Stroke({
color: 'blue',
width: 1
}),
fill: new ol.style.Fill({
color: 'rgba(0, 0, 255, 0.1)'
})
});
]
});
</code></pre>
</td></tr><tr class='fragment small'><td>
<ul>
<li>Uses 1 classes
<li>Decorator/delegator pattern
<li class='bad'>Doesn't have XHR capabilities (but there's the "Leaflet Ajax" plugin)
<li class='bad'>Doesn't have text rendering (but there's the "Leaflet Label" plugin)
<li class='bad'>Doesn't allow multiple symbolizers
</ul>
</td><td>
<ul>
<li>Uses 6 classes
<li>MVC (separates feature layer, source, format, style)
<li class='good'>Multiple symbolizers
</ul>
</td></tr>
</table>
</section>
<section>
<h3>Everything is...</h3>
<table class='comparison'><tr><td>
A wrapper over HTML elements
</td><td>
A model of "classic" GIS
</td></tr><tr class='fragment'><td>
<code>L.GridLayer</code> is a grid of <code><div></code>s or <code><canvas></code>s or <code><img></code>s or even <code><video></code>s.
</td><td>
<code>ol.Feature</code> has a <code>ol.geom</code> which can be a <code>ol.geom.LinearRing</code> or <code>ol.geom.MultiPoint</code> or any Simple Features Specification type.
</td></tr></table>
</section>
</section>
<section>
<section>
<h3>Documentation</h3>
<table class='comparison fragment'><tr><td>
<ul>
<li class='good'>Tutorials that work
<li class='bad'>5 examples
<li class='good'>Concise API Ref
</ul>
</td><td>
<ul>
<li class='bad'>Verbose tutorials (that don't work)
<li class='good'>125 examples
<li class='bad'>Verbose API ref
</ul>
</td></tr></table>
<h4 class='fragment'>↑ Learning curve, right there ↑</h4>
<table class='comparison fragment'><tr><td>
<ul><li class='bad'><strong>Manually</strong> maintained HTML
<li class='bad'>Easily out of sync
<li class='bad'>Not consistent across plugins
</ul>
</td><td>
<ul><li class='good'>Autogenerated <code>JSDoc</code>
<li class='good'>Always in sync
<li class='good'>Consistent
</ul>
</td></table>
</section>
<section>
<h3>Documentation</h3>
<table class='comparison'><tr><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td><td>
<img src='img/lol-guy.jpg' style='width: 25vh;'>
</td></table>
</section>
<section>
<p><strong><a href='https://github.com/IvanSanchez/Leafdoc'>https://github.com/IvanSanchez/Leafdoc</a></strong></p>
<img src='img/challenge-accepted.png' style='width: 40vh;'>
</section>
<section>
<h3>Documentation</h3>
<table class='comparison small'><tr><td>
<h3>🍂doc</h3>
<ul><li class='good'>Groups methods by ancestor.</ul>
</td><td>
<h3>JSdoc</h3>
<ul><li class='bad'>Methods are alphabetical, regardless of ancestor.</ul>
</td>
<tr><td>
<img src='img/leafdoc-inheritances.png'>
<a href='http://ivansanchez.github.io/Leafdoc/Leaflet-docs.html#rectangle-method' target=_blank>Demo!</a>
</td><td>
<img src='img/openlayers-inheritances.png'>
</td>
</table>
</section>
</section>
<section>
<section>
<h3>Something important for indoor...</h3>
<img src='img/IMG_20150904_162807.jpg' style='height:50vh'>
<img src='img/IMG_20150904_162829.jpg' style='height:50vh'>
</section>
<section>
<h3>Something important for indoor...</h3>
<img src='img/IMG_20150915_223708.jpg' style='height:40vh'>
<img src='img/IMG_20150915_223841.jpg' style='height:40vh'>
</section>
<section>
<h3>Rotation</h3>
<table class='comparison'><tr><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td><td>
<img src='img/lol-guy.jpg' style='width: 25vh;'>
</td></table>
</section>
<section>
<p><strong><a href='https://github.com/Leaflet/Leaflet/tree/rotate'>https://github.com/Leaflet/Leaflet/tree/rotate</a></strong></p>
<img src='img/challenge-accepted.png' style='width: 40vh;'>
</section>
<section>
<h3>Rotation</h3>
<table class='comparison'><tr><td>
<iframe src='frames/leaflet-rotate.html'></iframe>
</td><td>
<iframe src='frames/ol3-rotate.html'></iframe>
</td></table>
</section>
</section>
<section>
<section>
<h3>3D</h3>
<table class='comparison fragment'><tr><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td><td>
<img src='img/fuuuuuuuuu.jpg' style='width: 35vh;'>
</td></table>
</section>
<section>
<table class='comparison small'><tr><td>
<ul><li class='good'><code>L.LatLng</code> has altitude.
<li class='bad'>No perspective support of any kind (suggestion: <code>map.setTilt()</code>).
<li class='bad'>No WebGL at all
<li class='bad'>No renderer support for altitude
</ul>
</td><td>
<ul><li class='good'><code>ol.geom.GeometryLayout</code> can be <code>XY</code>, <code>XYZ</code>, <code>XYM</code>, <code>XYZM</code>.
<li class='bad'>No perspective support of any kind (suggestion: <code>ol.View.tilt</code>).
<li class='good'>Some WebGL support
<li class='bad'>No renderer support for Z
</ul>
</td></table>
</section>
<section>
<h3>Cesium for OpenLayers</h3>
<div><img src='img/ol3-cesium-files.png' class='fragment'></div>
<!-- <div><img src='img/ol3-cesium-code.png' class='fragment'></div> -->
<pre class='fragment'><code><script src='../ol3-ol-debug.js'></script>
<script src='../Cesium/Cesium.js'></script>
<script src='../ol3cesium-debug.js'></script></code></pre>
</section>
<section>
<h3>Cesium for OpenLayers</h3>
<div><img src='img/ol3-cesium-error.png' width=200% height=200%></div>
<div class='fragment'><ul><li class='bad'>Closure clusterf**k</div></ul>
</section>
<section>
<h3>Cesium for OpenLayers</h3>
<ul>
<li class='good'>3D that works
<li class='bad'>No WMS layers rendered as planes at a given height over the geoid
<li class='bad'>High cost to start developing
<li class='bad'>Big files (not viable for deployment in mobiles)
</ul>
</section>
<section>
<h3>3D</h3>
<table class='comparison fragment'><tr><td>
<p><a href='https://github.com/IvanSanchez/Leaflet.gl'>https://github.com/IvanSanchez/Leaflet.gl</a></p>
<img src='img/challenge-accepted.png' style='width: 35vh;'>
<p><a href='Leaflet.gl/examples/rotatetilt.html' target=_blank>Demo!</a></p>
</td><td>
<p><h3>Y U NO DO</h3></p>
<img src='img/y-u-no.jpg' style='width: 35vh;'>
<p>EXACTLY WAT I NEED</p>
</td></table>
</section>