World Population Tree Visualization

An interactive D3.js tree visualization showing the hierarchical relationship between continents, countries, and cities by population.

Features

• Hierarchical Tree Layout: Displays data as Continent → Country → City
• Color Coding: Different colors for each level (Root, Continent, Country, City)
• Interactive Tooltips: Hover over nodes to see detailed information
• Responsive Design: Adapts to different screen sizes

Setup

Quick Start with Sample Data

The visualization comes with sample data pre-loaded. Open index.html in a web browser to see the tree.

Using Your Own Data

1. Prepare CSV Data
   • Create a CSV file with columns: Continent, Country, City, Population
   • Example: