Greg Kempe longhotsummer
longhotsummer
/ centroid.js
Last active
July 7, 2016 06:56
Using D3, topojson and node.js to calculate the centroid of topojson features
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| /* A node.js script that uses D3 and topojson to calculate and output the lat/long | |
| * coordinates of the centroid for a collection of topojson boundary features. | |
| */ | |
| // install using npm install d3 | |
| var d3 = require("d3"); | |
| // download from http://d3js.org/topojson.v1.min.js | |
| var topojson = require("./topojson.v1.min.js"); | |
| // load json |
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