Book Image

Mapbox Cookbook

Book Image

Mapbox Cookbook

Overview of this book

Maps are an essential element in today’s location aware applications. Right from displaying earth surface information to creating thematic maps displaying plethora of information, most of the developers lack the necessary knowledge to create customizable maps with combination of various tools and libraries. The MapBox platform is one such platform which offers all the tools and API required to create and publish a totally customizable map. Starting with building your first map with the online MapBox Editor, we will take you all the way to building advanced web and mobile applications with totally customizable map styles. Through the course of chapters we’ll learn CartoCSS styling language and understand the various components of MapBox platform and their corresponding JavaScript API. In the initial few chapters we will dive deeper into the TileMill and MapBox Studio components of MapBox and use them to generate custom styled map tiles and vector maps. Furthermore, we will publish these custom maps using PHP, node.js and third party tools like Geoserver. We’ll also learn to create different visualizations and map styles like a choropleth map, a heat map and add user interactivity using a UFTGrid. Moving on, we dive into advanced concepts and focus on integration with third party services like Foursquare, Google FusionTables, CartoDB, and Torque to help you populate and even animate your maps. In the final chapter we’ll learn to use the Mapbox SDK to create and publish interactive maps for the iOS platform. By the end of this book, you will learn about MapBox GL and how to create a fully functional, location-aware mobile app, using the maps styles created in the recipes.
Table of Contents (13 chapters)
Mapbox Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Adding interactivity to your map with UTFGrid


In this recipe, we will create an interactive map using UTFGrid. The benefit of using UTFGrid instead of markers is that UTFGrids can handle a lot more data than it is possible to handle otherwise.

If your map needs to interact with several thousands of bits of data, it is no longer viable to fetch this data in a single pass, then cache it in the browser, and generate markers from it. It's inefficient performance-wise, but luckily, UTFGrid comes to the rescue in such extreme cases.

How to do it…

The steps to be performed are as follows:

  1. Create a map with TileMill. Use the templates section of TileMill to add interactivity to the map.

  2. Upload the map to Mapbox (or host it in your own server).

  3. Create L.mapbox.gridLayer and pass the Map ID.

  4. Then use the map.on('click', onClickCallback) handler to generate a popup when a user clicks on a gridLayer.

Creating an interactive map using TileMill

Fire up TileMill. We will use it to create our interactive map. Perform...