Question

我想使用addLayersControl小部件将图层添加到现有地图中，但我一直在获取以下信息：警告：调度错误：缺少参数“ map”，没有default（server）和参数“ map”，其中显示屏上没有默认错误。我希望能够在地图的不同图层之间切换。我尝试过包括getMapdata函数，但仍然无法在各层之间切换。可复制的代码：

#loading shape files
mp<-readOGR(
  dsn="merge",
  layer="m1")

treat<- readOGR(dsn="Wastewater treatment plants map", 
                layer="Nk_Sewer_Treatment")

output$leaf<-renderLeaflet({
    leaflet(mp) %>%

      #Initializing the map
      setView(lng=36.092245, lat=-00.292115,zoom=15)%>%

      #Base map
      #Add default OpenStreetMap map tiles
      addTiles(group = "default1")%>%
      addProviderTiles("Esri.NatGeoWorldMap",group = "default")%>%  
      addProviderTiles("CartoDB.Positron",group = "custom")%>%


      addPolygons(
        data = mp,
        fillColor = "blue",
        weight = 1, smoothFactor = 0.5,
        opacity = 1.0, fillOpacity = 1.0,
        highlightOptions = highlightOptions(
          weight = 2,
          color = "red",
          fillOpacity = 0.7,
          bringToFront = TRUE
        ),
        label =~LIA,
        popup = ~paste("<strong>Area Type:</strong>",AreaTyp,
                       "<br>",
                        "<strong>Piped Water On Plot:</strong>",PpdWtrP,"%",
                       "<br>",
                       "<strong>Water Source On Plot:</strong>",WtrSrOP,"%",
                       "<br>",
                       "<strong>Flash Toilets:</strong>",FlshTlt,"%",
                       "<br>",
                       "<strong>Other Improved:</strong>",OthrImp,"%",
                       "<br>",
                       "<strong>Unimproved:</strong>",Unmprvd,"%",
                       "<br>",
                       "<strong>Open Defecation:</strong>",OpnDfct,"%",
                       "<br>",
                       "<strong>Population Per km2:</strong>",PpDnsty
                       )

      ) 

    #Overlay map
    addPolygons(
      data = treat,
      fillColor = "red",
      weight = 1, smoothFactor = 0.5,
      opacity = 1.0, fillOpacity = 1.0,
      group = "basepoly", 
    )

    #add control widget
    addLayersControl(
                    baseGroups = c("default1","default","custom"),
                    overlayGroups = c("basepoly"),
                     options = layersControlOptions(collapsed = FALSE)
                    )
  })

AddLayersControl小部件错误

0 个答案: