所以我正在学习leaflet
地图库,我想问一下如何
不仅可以绘制国家,还可以绘制每个国家的区域,
可以清楚地看到区域,但是有一种方法可以同时绘制每个多边形吗?
这就是我的工作方式:
library(mapview)
library(leaflet)
library(leaflet.extras)
m <- leaflet() %>% addProviderTiles("CartoDB.Positron") %>%
# addProviderTiles("Stamen.TonerLines") %>%
addGraticule(group = "Graticule") %>%
addLayersControl(overlayGroups = c("Graticule"),options = layersControlOptions(collapsed = FALSE)) %>%
addPolygons(data = world, col = 'black', fillOpacity = 0.0001, smoothFactor = 0.0001, weight = 1) %>%
addLegend(position = 'bottomleft', colors = c("green", "#FC4E07", "dodgerblue"), labels = c("Yes", "No", "Capital city"), opacity = 0.8,title = 'Map Legend') %>%
setView(lng = 18.9, lat = 52, zoom = 04.495)
m