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intro.html
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<!DOCTYPE html>
<html lang="en"><head>
<script src="intro_files/libs/clipboard/clipboard.min.js"></script>
<script src="intro_files/libs/quarto-html/tabby.min.js"></script>
<script src="intro_files/libs/quarto-html/popper.min.js"></script>
<script src="intro_files/libs/quarto-html/tippy.umd.min.js"></script>
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<link href="intro_files/libs/quarto-html/quarto-syntax-highlighting.css" rel="stylesheet" id="quarto-text-highlighting-styles"><meta charset="utf-8">
<meta name="generator" content="quarto-1.5.57">
<meta name="author" content="Robin Lovelace">
<meta name="dcterms.date" content="2024-10-03">
<title>Transport network visualisation hackathon</title>
<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">
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<style>
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
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code span { color: #003b4f; } /* Normal */
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<div class="reveal">
<div class="slides">
<section id="title-slide" class="quarto-title-block center">
<h1 class="title">Transport network visualisation hackathon</h1>
<div class="quarto-title-authors">
<div class="quarto-title-author">
<div class="quarto-title-author-name">
Robin Lovelace <a href="https://orcid.org/0000-0001-5679-6536" class="quarto-title-author-orcid"> <img src="data:image/png;base64,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"></a>
</div>
<div class="quarto-title-author-email">
<a href="mailto:R dot Lovelace at leeds. ac.uk">R dot Lovelace at leeds. ac.uk</a>
</div>
<p class="quarto-title-affiliation">
University of Leeds, Active Travel England
</p>
</div>
</div>
<p class="date">October 3, 2024</p>
</section>
<section>
<section id="welcome" class="title-slide slide level1 center">
<h1>Welcome</h1>
</section>
<section id="agenda-i" class="slide level2">
<h2>Agenda I</h2>
<ul>
<li><p>11:00 - 12:30: Demo of existing tools and sharing of ideas</p>
<ul>
<li>11:00 - 11:15: Introduction and welcome (Robin Lovelace)</li>
<li>11:15 - 11:25: Demo of <code>parenx</code> package for network simplification and visualisation of networks with Python (Will Deakin)</li>
<li>11:25 - 11:35: Demo of reproducible traffic flow visualisation with R (Juan Pablo Fonseca Zamora)</li>
<li>11:35 - 11:45: Demonstration of ‘core network’ generation and visualisation in the Network Planning Tool (Zhao Wang)</li>
<li>11:45 - 11:55: Demonstration of visualisation with MapLibre, with reference to <code>od2net</code> and the Network Planning Tool for Scotland (Robin Lovelace)</li>
</ul></li>
</ul>
</section>
<section id="agenda-ii" class="slide level2">
<h2>Agenda II</h2>
<pre><code>- 11:55 - 12:00: Introduction to TGVE and the hackathon (Layik Hama)
- 12:00 - 12:15: Q&A of ideas for the hackathon</code></pre>
<ul>
<li><p>12:15 - 13:00: Lunch and networking</p></li>
<li><p>13:00 - 16:00: Hackathon</p>
<ul>
<li>At around 15:00 we will ask teams which teams want to present and take a break</li>
</ul></li>
<li><p>16:00 - 17:00: Presentations and discussion</p>
<ul>
<li>16:00 - 16:40: Presentations</li>
<li>16:40 - 17:00: Discussion and wrap-up</li>
</ul></li>
</ul>
</section>
<section id="the-hackathon" class="slide level2">
<h2>The hackathon</h2>
<p>See https://github.com/Robinlovelace/netvishack/</p>
<img data-src="images/paste-15.png" class="r-stretch"></section>
<section id="reproducibility" class="slide level2">
<h2>Reproducibility</h2>
<div class="panel-tabset" data-group="language">
<ul id="tabset-1" class="panel-tabset-tabby"><li><a data-tabby-default="" href="#tabset-1-1">R</a></li><li><a href="#tabset-1-2">Python</a></li><li><a href="#tabset-1-3">JavaScript</a></li></ul>
<div class="tab-content" data-group="language">
<div id="tabset-1-1">
<div class="cell">
<div class="sourceCode cell-code" id="cb2"><pre class="sourceCode numberSource r number-lines code-with-copy"><code class="sourceCode r"><span id="cb2-1"><a href=""></a><span class="fu">library</span>(sf)</span>
<span id="cb2-2"><a href=""></a>sf<span class="sc">::</span><span class="fu">write_sf</span>(spData<span class="sc">::</span>world, <span class="st">"world.gpkg"</span>)</span>
<span id="cb2-3"><a href=""></a><span class="fu">plot</span>(spData<span class="sc">::</span>world)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<div class="cell-output-display">
<div>
<figure>
<p><img data-src="intro_files/figure-revealjs/unnamed-chunk-1-1.png" width="960"></p>
</figure>
</div>
</div>
</div>
</div>
<div id="tabset-1-2">
<div class="cell">
<div class="sourceCode cell-code" id="cb3"><pre class="sourceCode numberSource python number-lines code-with-copy"><code class="sourceCode python"><span id="cb3-1"><a href=""></a><span class="im">import</span> geopandas <span class="im">as</span> gpd</span>
<span id="cb3-2"><a href=""></a>world <span class="op">=</span> gpd.read_file(<span class="st">'world.gpkg'</span>)</span>
<span id="cb3-3"><a href=""></a>world.plot()</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
<div class="cell-output-display">
<div>
<figure>
<p><img data-src="intro_files/figure-revealjs/unnamed-chunk-2-1.png" width="960"></p>
</figure>
</div>
</div>
</div>
</div>
<div id="tabset-1-3">
<div class="sourceCode" id="cb4"><pre class="sourceCode numberSource bash number-lines code-with-copy"><code class="sourceCode bash"><span id="cb4-1"><a href=""></a><span class="ex">npm</span> install .</span>
<span id="cb4-2"><a href=""></a><span class="ex">npm</span> run start</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
</div>
</div>
</div>
</section>
<section id="case-study-for-reference" class="slide level2">
<h2>Case study for reference</h2>
<div class="columns">
<div class="column" style="width:50%;">
<p>The Network Planning Tool for Scotland</p>
<ul>
<li>Development version (branch <code>dev</code>): <a href="https://nptscot.github.io/">nptscot.github.io</a></li>
<li>Stable version (branch <code>production</code>): <a href="https://www.npt.scot/">www.npt.scot</a></li>
</ul>
</div><div class="column" style="width:50%;">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="./images/basemaps.png"></p>
<figcaption>The NPT web app</figcaption>
</figure>
</div>
</div></div>
</section>
<section id="npt-stack" class="slide level2">
<h2>NPT stack</h2>
<div class="columns">
<div class="column">
<p>Backend: R + targets for ‘cross-language’ data pipeline workflow automation</p>
<ul>
<li>Relies on Rust crates</li>
<li>Experiments with Python</li>
</ul>
<p>Frontend: JS + MapLibre for visualisation</p>
<p>Progressive Web App (PWA)</p>
</div><div class="column">
<div class="quarto-figure quarto-figure-center">
<figure>
<p><img data-src="./images/map_controls.png"></p>
<figcaption>Map controls</figcaption>
</figure>
</div>
</div></div>
</section>
<section id="user-interface" class="slide level2">
<h2>User interface</h2>
<img data-src="./images/layer_controls.png" class="r-stretch quarto-figure-center"><p class="caption">Layer Controls</p></section></section>
<section>
<section id="tools" class="title-slide slide level1 center">
<h1>Tools</h1>
</section>
<section id="ides" class="slide level2">
<h2>IDEs</h2>
<ul>
<li>VSCode is market leader with strong community
<ul>
<li>Pro: many extensions</li>
<li>Pro: Live Share</li>
<li>Pro: GitHub integration (including copilot)</li>
<li>Pro: devcontainers work out-of-the-box</li>
<li>Con: setup time, can be intimidating</li>
</ul></li>
<li>Positron
<ul>
<li>Pro: More batteries included</li>
<li>Con: Missing great VSCode features (e.g. Live Share)</li>
<li>Con: Early days, fewer developers</li>
<li>Thought: why didn’t they put energy into great extensions for modularity?</li>
</ul></li>
<li>RStudio, Jupyter Lab, Zed, …</li>
</ul>
<div class="quarto-auto-generated-content">
<div class="footer footer-default">
</div>
</div>
</section></section>
</div>
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