A9 Proportional Symbols

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A9 Proportional Symbols

✓ Published1🌍 Public

Last edited Apr 21, 2024

Created on Apr 2, 2024

This proportional symbols map displays transportation costs for each US state, with the circle size encoding the cost amount and the color indicating whether a state ranks in the top ten most expensive. Rendered as an SVG via D3 v7, the visualization uses the `d3.geoAlbers` projection for the contiguous states, with separate `d3.geoMercator` projections for Alaska and Hawaii. State cost data is loaded from a Gist CSV, and the `topojson.feature` API draws state boundaries while circles are positioned using the `projection` function.

AI-generated description

Proportional symbols visualization of transportation costs by state made with D3. Reference: D3.js Choropleth Map Code Walkthrough

Hover over a county to see its name and transportation cost. Please fullscreen to see proper scaling.

MIT Licensed

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