修复背景图片的开关

src/graphic/Controls/UIControl.js

@@ -212,7 +212,8 @@ export default class UIControl {
   // value 为true则开 false则关
   menu_backgroundImg(value) {
     //
-    this.graphicStateUI.showBackImage = value;
+    const backgroundImg = dataService.getBackgroundImg();
+    backgroundImg.setDisplay(value);
     this.layer.renderer.autoRedraw();
   }