Geo circle

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Last edited Oct 27, 2018

Created on Oct 27, 2018

A world map in the Mercator projection displays two translucent red circles of equal radius, centered at [0, 10] degrees, demonstrating how a 5,000-mile radius appears at different latitudes. The visualization uses d3.geoMercator and d3.geoPath to render the sphere, graticule, and landmasses from TopoJSON world-atlas data, while d3.geoCircle generates the geographic circles. The SVG output includes a white graticule, dark land fill, and country boundaries, with the circles overlaid on the map.

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