BMW Continental Sales Volume World Map

This visualization shows BMW sales volumes across different continents on an interactive world map.

Features

• Interactive Map: Displays sales volumes for BMW vehicles across six regions:

  • North America
  • South America
  • Europe
  • Africa
  • Asia
  • Middle East

• Proportional Circles: Circle sizes are scaled proportionally to represent total sales volume in each region

• Visual Feedback: Hover effects provide interactive feedback on both countries and sales markers

• Labels: Each circle shows the sales volume in thousands (K)

• Tooltips: Hover over circles to see exact sales volume numbers with region names

Technical Details

The visualization uses:

• D3.js for data visualization and geographic projections
• Natural Earth projection for a balanced world view
• Square root scaling for circle areas to accurately represent volume differences
• TopoJSON for efficient geographic data handling

Data

The visualization aggregates sales data from data.csv, summing the Sales_Volume column for each continental region.

Code Structure

• index.js - Main entry point and data loading
• map.js - Map rendering logic
• dataProcessing.js - Data aggregation utilities
• regionCoordinates.js - Geographic coordinate mappings
• styles.css - Visual styling