Flow Map

Flow maps visualize movement between locations using lines or arrows, with width often proportional to volume. They effectively display migration patterns, trade routes, transportation flows, and any origin-destination data with geographic context.

Example Visualization

Flow map showing migration patterns between states

Try this prompt

"Create an interactive flow map showing 'US Interstate Migration Patterns' between major metropolitan areas. Generate realistic migration data for flows between 15 cities: top outflows from California (LA, SF) and New York to Texas (Austin, Dallas, Houston), Florida (Miami, Tampa), and Arizona (Phoenix). Flow volumes range from 5,000 to 50,000 annual migrants. Draw curved arrows between origin and destination. Arrow width proportional to migration volume. Color by net flow direction: blue for inflows, red for outflows. Animate flows with moving particles. Size city markers by population. Add hover showing origin, destination, annual migrants, and percentage of origin population. Include a summary panel showing top gainers and losers. Title: 'US Domestic Migration Flows 2023'."

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Python Code Example

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Common Use Cases

1Migration visualization
2Trade flow analysis
3Transportation planning
4Supply chain mapping

Pro Tips

Use curved lines to reduce overlap

Scale line width by volume

Add directional arrows