August 2014
Intermediate to advanced
180 pages
3h 41m
English
Content preview from Leaflet.js EssentialsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Mapping GeoJSON Data
In Chapter 1, Creating Maps with Leaflet, all of the geometry elements—points, lines, and polygons—were created one at a time. You learned how to create groups of features using layer and feature groups and also multipolyline and multipolygon classes. In this chapter, you will learn how to add GeoJSON data to your map. The data will be comprised of multiple geometries and will have descriptive data associated with it.
In this chapter, we will cover the following topics:
- What is GeoJSON?
- How to add it to your map
- How to style it
- Iterating through features
- How to call GeoJSON from external sources
Understanding the roots of GeoJSON
Before GeoJSON, there was JavaScript Object Notation (JSON), and before JSON, there was Extensible ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.