列车方向箭头调整

src/jmapNew/shape/Train/EDirection.js

@@ -36,18 +36,6 @@ class EDirection extends Group {
         this.create();
         this.arrow.setStyle('fill', color);
     }
-
-    // 隐藏
-    hide() {
-        this.create();
-        this.arrow.hide();
-    }
-
-    // 显示
-    show() {
-        this.create();
-        this.arrow.show();
-    }
 }
 
 export default EDirection;