var polygon = require("d3-polygon");
module.exports = function() {
return {
points: null,
area: function() { return Math.abs(polygon.polygonArea(this.points)); },
moveTo: function(x, y) { this.points = [[x, y]]; },
lineTo: function(x, y) { this.points.push([x, y]); },
rect: function(x, y, w, h) { this.points = [[x, y], [x + w, y], [x + w, y + h], [x, y + h]]; },
closePath: function() {}
};
};