boost + mapmenu + 店铺红包

@@ -486,6 +486,10 @@ Page({
     }
     if(param.lat){
       param.centre_pos=`${param.lat},${param.lng}`
+    }else{
+      let lat=(this.mapData.region.southwest.latitude+this.mapData.region.northeast.latitude)/2
+      let lng=(this.mapData.region.southwest.longitude+this.mapData.region.northeast.longitude)/2
+      param.centre_pos=`${lat},${lng}`
     }
     if(this.data.hasSuggestion){
       param.centre_pos=`${this.data.suggestion.latitude},${this.data.suggestion.longitude}`