World Population Tree Visualization

An interactive D3.js tree visualization showing world population data organized hierarchically: Continent → Country → City.

Features

• Hierarchical Tree Layout: Data organized from continents down to individual cities
• Color Coding: Different colors for each tree depth level
• Interactive Tooltips: Hover over nodes to see detailed information
• Responsive SVG: Scales to fit different screen sizes

Setup

1. Replace the CSV_URL in index.html with your own CSV file URL

2. Your CSV should have the following columns:

   • Continent: The continent name
   • Country: The country name
   • City: The city name
   • Population: The population (numeric)

3. Open index.html in your browser

CSV Format Example