Category Archives

3 Articles

JavaScript: Interactive Leaflet.js map with search bar

by Marie-Louise Timcke on February 20, 2017 3 Comments

In our previous posts about Leaflet.js, we coded an interactive marker map and learned how to update our data with a google spreadsheet. In this short tutorial, we will show you how to make your map searchable so users can find a specific marker.

We’ll use the code of the already finished map that’s hosted on our GitHub page so we don’t have to start at the very beginning again. Simply download the directory to your computer and open it in your text editor. If you’ve never created an interactive map with Leaflet.js before, please have a look at the two tutorials mentioned above before proceeding with this one.

JavaScript: Loop through a Google Spreadsheet

by Marie-Louise Timcke on January 9, 2017 2 Comments

In our post Coding marker maps with Leaflet.js we filled a map visualization with information given directly in the code, but we also learned how to loop through data in a JSON file to create markers and pop-ups. This time, we will loop through an public Google Spreadsheet. We will do this with the same example map as in the previous post. But this little trick will not only help you with building marker maps but can come in handy for any JavaScript application you need to automate the handling of your data.

So let’s start right away with setting up a data table with Google Spreadsheets.

Adding tooltips to SVG graphics

by Marie-Louise Timcke on August 2, 2016 1 Comment

Java Script libraries and other tools offer cool ways to visualize data, but sometimes, you may want an even more customizable way of presenting a topic on the web. Maybe you already have the perfect graphic, but it’s not interactive yet. In this tutorial, we’ll show you a way to add tooltips to your SVG graphics.