diff --git a/src/components/ControlPanelDialog.vue b/src/components/ControlPanelDialog.vue
index f5a7ab9..188cadb 100644
--- a/src/components/ControlPanelDialog.vue
+++ b/src/components/ControlPanelDialog.vue
@@ -689,7 +689,7 @@ export default defineComponent({
       const point_list = four_point();
       if (wall_dom) {
         if (item.angle != 0 && point_list) {
-          let minx = 10000;
+          let minx = 0;
           point_list.forEach((element) => {
             if (minx > element.x) {
               minx = element.x;