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section-symbolization.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>map school: Symbolization</title>
<link href='https://www.mapbox.com/base/latest/base.css' rel='stylesheet' />
<link rel='stylesheet' type='text/css' href='css/site.css' />
<meta http-equiv='content-type' content='text/html; charset=utf-8' />
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<meta name="description" content="a brief introduction to map and geospatial concepts">
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<body>
<div class='header'>
<h1><a href='./'>map school: Symbolization</a></h1>
<p>a free introduction to geo.</p>
<div class='pill'>
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<div class='content'>
<p>Symbolization is a fancy word for the particular ways that data is transformed into graphics in the world of maps.</p>
<p>Fundamentally, data doesn't look like anything: a list of pixel values or road lines is just as well represented in a spreadsheet or a chart as it is on a map. Thus to 'convert' is not the right word for what we do with data: at the most basic level, everything is a decision.</p>
<p>Symbolic techniques include anything representable in graphics or even 3D, so let's only look at a few:</p>
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