Zone.ts not staged for some reason.

src/app/shared/classes/zone.ts

@@ -0,0 +1,27 @@
+import { IPoint, Point } from './storage';
+
+export interface IZone {
+    label: string;
+    area: Array<IPoint>;
+}
+
+export class Zone implements IZone {
+    public label: string;
+    public area: Array<Point>;
+
+    constructor(label: string, area : Array<IPoint>) {
+        this.label = label;
+        this.area = area.map((point) => {
+            return Point.parse(point);
+        });
+    }
+
+    public contains(point: IPoint) {
+        return (point.x >= this.area[0].x && point.x < this.area[2].x &&
+        point.y >= this.area[1].y && point.y < this.area[2].y);
+    }
+
+    static parse(zone: IZone) {
+        return new Zone(zone.label, zone.area);
+    }
+}