Junction Finding
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Mmbostock
Last edited Feb 9, 2016
Created on Sep 2, 2013
This example visualizes the topology of the contiguous United States by drawing the mesh of internal boundaries and marking junction points where three or more arcs meet. It uses the TopoJSON library to compute the mesh from the `us.json` topology file, with `d3.geo.path` rendering the SVG paths. Circles are placed at junctions by counting arc endpoints, and the transformation scales coordinates to map space using the topology's transform metadata.
AI-generated descriptionStep 2 of 4 of topology construction. From How To Infer Topology.
gpl-3.0 Licensed