优化喷涂区域的选择

src/components/spray/trayGraph/index.vue

@@ -131,6 +131,10 @@ const addSelect = () => {
         || newBoundBox.y < 0
         || newBoundBox.x + newBoundBox.width > stageWidth
         || newBoundBox.y + newBoundBox.height > stageHeight
+        || oldBoundBox.width - (newBoundBox.x - oldBoundBox.x) < 25
+        || newBoundBox.width < 25
+        || oldBoundBox.height - (newBoundBox.y - oldBoundBox.y) < 25
+        || newBoundBox.height < 25
       ) {
         return oldBoundBox // 满足任一条件则拒绝调整
       }