diff --git a/ui/src/components/rects/RectPad.vue b/ui/src/components/rects/RectPad.vue
index 5856515..35e4351 100644
--- a/ui/src/components/rects/RectPad.vue
+++ b/ui/src/components/rects/RectPad.vue
@@ -13,7 +13,7 @@
     @dblclick.left="remove_rect"
   >
     <Rect
-      v-for="(rect, index) in rectangles"
+      v-for="(rect, index) in _rectangles"
       :key="'rect' + index"
       :rectangle="rect"
     />
@@ -56,7 +56,7 @@ export default class RectPad extends Vue {
   private dragging = false;
   private drag_rect?: Rectangle;
   private drag_origin = new Vector2D();
-  private rectangles: Rectangle[] = [];
+  private _rectangles: Rectangle[] = [];
 
   private get preview_visible(): boolean {
     return this.drawing || this.dragging;
@@ -69,14 +69,22 @@ export default class RectPad extends Vue {
     ).normalize();
   }
 
+  public get rectangles(): Rectangle[] {
+    return this._rectangles; //.map((rect) => rect.normalize());
+  }
+
+  public set rectangles(rects: Rectangle[]) {
+    this._rectangles = rects; //.map((rect) => rect.normalize());
+  }
+
   private pop_rectangle(point: Vector2D): Rectangle | undefined {
-    const idx = this.rectangles.findIndex((rect) => rect.contains(point));
+    const idx = this._rectangles.findIndex((rect) => rect.contains(point));
 
     if (idx === -1) {
       return;
     }
 
-    return this.rectangles.splice(idx, 1)[0];
+    return this._rectangles.splice(idx, 1)[0];
   }
 
   private draw_start(event: MouseEvent) {
@@ -100,7 +108,7 @@ export default class RectPad extends Vue {
       return;
     }
 
-    this.rectangles.push(this.preview_rectangle);
+    this._rectangles.push(this.preview_rectangle);
   }
 
   private drag_start(event: MouseEvent) {
@@ -128,7 +136,7 @@ export default class RectPad extends Vue {
     }
 
     this.dragging = false;
-    this.rectangles.push(this.preview_rectangle);
+    this._rectangles.push(this.preview_rectangle);
   }
 
   private on_mousemove(event: MouseEvent) {