| Current Path : /home/emeraadmin/www/node_modules/d3-contour/src/ |
| Current File : /home/emeraadmin/www/node_modules/d3-contour/src/area.js |
export default function(ring) {
var i = 0, n = ring.length, area = ring[n - 1][1] * ring[0][0] - ring[n - 1][0] * ring[0][1];
while (++i < n) area += ring[i - 1][1] * ring[i][0] - ring[i - 1][0] * ring[i][1];
return area;
}