show positions of boxs at the demo page

Author: BaseMax

ShapeAlgorithm.js

@@ -18,7 +18,7 @@ class ShapeAlgorithm {
         this.matrix = [];
         this.labels = [];
         this.sizes = [];
-        this.positions = [];
+        this.positions = {};
 
         this.init();
     }

demo.html

@@ -73,6 +73,17 @@ <h1>Shapes Algorithm</h1>
             const quantity = quantities[i];
             const elm_quantity = document.createElement("li");
             elm_quantity.innerHTML = `${quantity.width}x${quantity.height} = ${quantity.quantity} (labeled ${quantity.label})`;
+            
+            const ul = document.createElement("ul");
+            for (let position of quantity.positions) {
+                console.log(position);
+                const ul_item = document.createElement("li");
+                ul_item.innerHTML = `(${position.from_w}, ${position.from_h}) => (${position.to_w}, ${position.to_h})`;
+
+                ul.appendChild(ul_item);
+            }
+            elm_quantity.appendChild(ul);
+
             elm_quantities.appendChild(elm_quantity);
         }
     });