我正在制作美国社区调查数据的地图。目前我有一个主要层(见下文plotMerge$incomePerCapita
)。它运作良好,有一个完全充实的弹出窗口,图像和所有。当我添加第二层时,为了提供县和区域边界,道边界变得不可点击,似乎被新图层掩盖。
如果我交换图层顺序,区域边界将变为不可见。
map1<-leaflet()%>%
addTiles()%>%
addPolygons(data = plotMerge,
fillColor = ~pal(plotMerge$incomePerCapita),
color = "#000000", #this is an outline color
fillOpacity = 0.8,
weight = 0.2,
popup=popup)%>%
addPolygons(data = countyPoly,
fillColor = "transparent",
color = "#000000",
stroke = TRUE,
weight = 1,
smoothFactor = 0.5,
group = "Counties")%>%
addLegend(pal = pal,
values = plotMerge$incomePerCapita,
position = "bottomright",
title = "State-wide Income Percentiles",
labFormat = labelFormat(digits=1))
saveas(map1, "map1.html")
map1
有没有办法在第二层显示边界的轮廓,但保留上一层的完整功能?
我是否应该以不同的方式编写addPolygons脚本以显示边界而不强加功能模糊的图层?
更新:
我修正了错误并交换了addPolygons
代码,以便按正确的顺序获取图层。
map1<-leaflet()%>%
addTiles()%>%
addPolygons(data = countyPoly,
fillColor = "transparent",
color = "#000000",
stroke = TRUE,
weight = 1,
smoothFactor = 0.5,
group = "Counties")%>%
addPolygons(data = plotMerge,
fillColor = ~pal(plotMerge$incomePerCapita),
color = "#000000", #this is an outline color
fillOpacity = 0.8,
weight = 0.2,
popup=popup)%>%
addLegend(pal = pal,
values = plotMerge$incomePerCapita,
position = "bottomright",
title = "State-wide Income Percentiles",
labFormat = labelFormat(digits=1))
感谢您的期待!
答案 0 :(得分:3)
如果您使用sp
处理适当的空间对象,可以将countyPoly
强制转换为SpatialLines(DataFrame)
:
countyLines <- as(countyPoly, "SpatialLinesDataFrame")
然后,您应该能够在显示顶部的线条时单击底层多边形图层。
编辑: 作为一个可重复的例子,您可以尝试:
library(mapview)
library(sp)
pol <- as(gadmCHE, "SpatialPolygons")
ln <- as(gadmCHE, "SpatialLines")
mapview(gadmCHE, color = "blue") + pol # not clickable
mapview(gadmCHE, color = "blue") + ln # clickable
答案 1 :(得分:0)
使用leaflet_1.1.0
,似乎@TimSalabim提出的解决方案不再适用。
您现在可以使用addPolylines
代替addPolygons
来解决问题。