@explorables/the_walking_head NPM

The walking head

This explorable illustrates a simple model for pedestrian dynamics. The model can explain spontaneous lane formation in opposing flows, congestion patterns, and phenomena like crowd turbulence.

The explorable is part of the Complexity Exporables Collection. For more information about the system and its behavior consult the explorable

“The walking head” - Pedestrian dynamics

Usage & Installation

Just running the explorable

If you just want to run the explorable you can Click here.

Running a local copy

If you want to run a local copy without having to rely on the nasty internet, the best way is to install it via npm:

npm install @explorables/the_walking_head
open node_modules/@explorables/the_walking_head/dist/index.html

Embedding the explorable in your site

If you want to embed the explorable in your site, you need to do three things:

load the explorable package via <script> tag in your page header
add a <div> container element
add a <script> at the end of the document that loads the explorable

like so:

<!doctype html>
<html>
	<head>
		...
		<script src="https://cdn.jsdelivr.net/npm/@explorables/the_walking_head/dist/index.umd.js"></script>
		...
	</head>
		...
	<body>
		...
	    <div id="explorable_container"></div>
		...
	</body>
		...
	<script type="text/javascript">
		const explorable_instance = the_walking_head.load("explorable_container")
	</script>
		...
</html>

The header <script> tag loads the bundle, the <div> in the document is the container in which the explorable gets anchored when the function the_walking_head("explorable_container") gets executed at the bottom. This function needs the <div> container id as an argument. The function returns an instance of the explorable and writes it to explorable_instance. That variable contains functions like halt(), reset() and variables meta and config.

If you want to make use of ES modules instead of UMD, here's a way that will work on modern (ES support) and legacy browsers (UMD only).

<!doctype html>
<html>
	<head>
		...
	    <script type="module">
	  	      import load from 'https://cdn.jsdelivr.net/npm/@explorables/the_walking_head/dist/index.es.js';
	  	      const the_walking_head = load("explorable_container");
	    </script>
	    <script nomodule src="https://cdn.jsdelivr.net/npm/@explorables/the_walking_head/dist/index.umd.js"></script>	  
		...
	</head>
		...
	<body>
		...
	    <div id="explorable_container"></div>
		...
	</body>
		...
	<script nomodule type="text/javascript">
		const explorable_instance = the_walking_head.load("explorable_container")
	</script>
		...
</html>

Installing the whole package locally

If you want to modify or edit the explorable to make your own version:

Clone repository:

git clone https://github.com/dirkbrockmann/the_walking_head.git

Go to the directory, install, build and show using npm:

cd the_walking_head
npm install
npm run build
npm run preview

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

complexity explorables visualization

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