在后期关闭大板优先模式

src/Nest/Individual.ts

@@ -89,6 +89,9 @@ export class Individual
                 this.Fitness = Math.ceil(bestCount) + 1;
                 return;
             };
+            let container = new Container(bin);
+            if (this.mutationRate > 0.21)
+            {
                 let area = 0;
                 let maxP: Part;
                 for (let i = 0; i < parts.length; i++)
@@ -100,9 +103,9 @@ export class Individual
                         area = p.State.PlaceOutline.Area;
                     }
                 }
-            let container = new Container(bin);
                 if (container.PutPart(maxP))
                     parts = parts.filter(p => p !== maxP);
+            }
             parts = parts.filter(p =>
             {
                 return container.PutPart(p) !== true;