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- 'use strict'
- module.exports = alphaComplex
- var delaunay = require('delaunay-triangulate')
- var circumradius = require('circumradius')
- function alphaComplex(alpha, points) {
- return delaunay(points).filter(function(cell) {
- var simplex = new Array(cell.length)
- for(var i=0; i<cell.length; ++i) {
- simplex[i] = points[cell[i]]
- }
- return circumradius(simplex) * alpha < 1
- })
- }
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