Make Your Own Ridgeline Plots

Joyplot Map Today’s #30DayMapChallenge is to use a New Tool (create your map using a software, language, library, or technique you have never used before). For this challenge I decided to build something using Terrain RGB.My Joyplot Map is an interactive map that turns elevation data into ridgeline plots – right in your browser.This map lets you draw a rectangle anywhere on the globe and view Maps Mania… more →
Posted in: Interactive Maps

There Are No Roads in London

Streets of London Today’s #30DayMapChallenge is to use OpenStreetMap (OSM) data as your primary source.To meet this challenge I decided to use OpenStreetMap data to explore the toponyms of London’s streets, visualizing how different road types – Streets, Lanes, Alleys, Courts, Yards, and Avenues – are named and distributed across the City of London.One of my favourite quiz questions is – ‘How Maps Mania… more →
Posted in: Interactive Maps

A Minimal Flight Tracking Map

Minimal London Day 11 of the #30DayMapChalenge is to create a Minimal Map. For this task my Minimal London flight-tracking map strips away everything but the essentials – a bold black canvas, a clean blue river, crisp white bridges, and the silent drift of planes crossing the city in real-time.đź—ş What the Map ShowsAt its heart, the map visualizes:The River Thames, rendered as a smooth, blue line Maps Mania… more →
Posted in: Interactive Maps

Road Orientations Map

Road Orientations Map The topic for day 8 of the #30DayMapChallenge is Urban. For this challenge I decided to go old-school and convert Vladimir Agafonkin’s original Road Orientations from Mapbox to Maplibre. The original code analyzes street orientations and visualizes them as a polar histogram. I’ve just adapted Vladimir’s approach to work with MapLibre GL JS.What the Map ShowsThe Maps Mania… more →
Posted in: Interactive Maps

New York Mayoral Election Maps

A number of elections took place yesterday, but by far the most talked-about was the race for New York City mayor – where Zohran Mamdani emerged victorious, securing over 50% of the vote.According to The New York Times’ interactive map, The Most Detailed Map of the N.Y.C. Mayoral Election (paywalled), Mamdani dominated in much of the city, outpacing former Governor Andrew Cuomo in a wide Maps Mania… more →
Posted in: Interactive Maps

Lines of Population

County StripesPopulation Density Shown as Longitude and Latitude Stripes  đź—şď¸Ź County Stripes – Exploring America’s Data in Stripes The theme for the second day of the #30DayMapChallenge is Lines. For this theme I’ve created a map that colors longitude and latitude lines based on population density.County Stripes is an interactive map that visualizes U.S. county data not just by county Maps Mania… more →
Posted in: Interactive Maps

What’s Missing from Human History?

The Globe of History is a new interactive map that recounts 6,000 years of human events. In fact, not only does it recount history – it reinterprets it as well.For example, it reveals that what most historians have considered one of the most revolutionary and significant periods in human history was, in fact, a new dark age. That’s right – according to The Globe of History, only one significant Maps Mania… more →
Posted in: Interactive Maps

Watch the USA Grow, State by State

The Library of Congress has launched a new animated map, The United States at a Glance, that lets you literally watch the nation growAt its core, the map is a powerful educational resource, allowing you to click on any point to access the foundational legal documents that established, admitted, or incorporated that state or territory. Much of the legal content is drawn from the Library’s massive Maps Mania… more →
Posted in: Interactive Maps
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