Let's Make a map

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Let's Make a map

✓ Published0🌍 Public

Last edited Nov 5, 2020

Created on Nov 4, 2020

This example displays a zoomable world map using geographic data from the world-atlas TopoJSON files. It renders country boundaries as SVG paths via d3.geoPath with a d3.geoNaturalEarth1 projection, and d3.zoom enables pan/zoom interactions that update the map group’s transform. Country names come from a TSV file joined by ISO numeric codes, appearing as hover tooltips via SVG title elements. Countries fill red on hover, while the sphere outline is drawn from a GeoJSON sphere object.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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