![]() ![]() To identify this later in the code, you should also give it an id attribute of your choice. Give it a title and create an HTML block element (for example, ) to place your map chart. The first thing you need to do is create a basic HTML page. Step 1: Create the HTML page for your map Here is a choropleth map that will be the final output of the first part of this tutorial: Prepare the data you want to visualize.Generally, building a JavaScript-based chart or map requires four basic things: Then I will add a legend, customize the tooltip, and add bubbles to visualize the number of deaths. ![]() I will start with a basic choropleth map that will graphically represent the confirmed cases. Each area is colored or shaded differently according to the value of the given data, making it easy to grasp how a measurement varies across a territory.įor this JS mapping tutorial, I will use open COVID-19 data to show the distribution of confirmed cases and deaths around the world by country. What exactly are choropleth maps? When you break down the word, you see that choro- (“ choros”) means “ area” and pleth- (“ plethos”) means “ multitude.” Exactly, these maps are used to visualize statistical data related to multiple geographic areas. Have you wondered how such data visualizations are built? Are you interested in making them by yourself? If so, stay with me through this JS charting tutorial, where I will show you how to create an interactive JavaScript choropleth map from scratch but with ease.īasic knowledge of HTML5 and JS is always helpful, but even if you are a beginner in this field, understand these four simple steps and you will be able to quickly get a good-looking cross-platform interactive choropleth map data visualization for your app or website! If you have any questions regarding licensing - please contact us.These days you see choropleth maps in a variety of webpages and utilized for various subjects. Limited by time and doesn't contain any feature limitations. You can test this plugin with the trial version of An圜hart. You can use, edit, modify it, use it with other Javascript libraries code of the plugin that allows to use Javascript library (in this case, An圜hart).Use map chart instance and how to add the after-draw handler.Īn圜hart Angular2 plugin includes two parts: ![]()
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