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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GeoJSON in Leaflet.js
GeoJSON is just another data format for you to add to your map. It can be added as a hardcoded variable. Leaflet.js geometries—markers, polylines, and polygons—can be converted to GeoJSON. You can style the data, apply options to each feature, and even filter the data. The next sections will cover these topics, starting with adding GeoJSON as a hardcoded variable.
GeoJSON as a variable
The easiest way to add GeoJSON to your map is to hardcode the data into a variable. In Leaflet.js, you will start by creating a variable that will contain GeoJSON. In the following code, GeoJSON data consisting of two points is assigned to the geojson variable:
vargeojson = [{ "type": "Feature", "geometry": { "type": "Point", "coordinates": [-106.62987,35.10418] ...Become 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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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.