在传单中绘制 sf 类型对象 [r]

我想问一下怎么画图sf传单中的对象来自leaflet package我知道mapview package可以绘制它，但我更喜欢使用 lealfet 包。

我在下面提供了示例：

library(leaflet)
library(eurostat)
library(dplyr)
library(ggplot2)

options(readr.default_locale=readr::locale(tz="Europe/Berlin"))
df60 <- get_eurostat_geospatial(resolution = 60)

CE.sf <- df60 %>%   
  dplyr::filter(LEVL_CODE == 2 & CNTR_CODE %in% c("AT","CZ","DE","HU","PL","SK")) %>% 
  dplyr::select(NUTS_ID) 

plot(CE.sf)

CE.sf %>% 
  ggplot() +
  geom_sf(color = "black", size = 0.4)

CE = sf::as_Spatial(CE.sf)

leaflet() %>% 
  addProviderTiles("CartoDB.Positron") %>% 
  addPolygons(data= CE, color = "green")

我需要重现传单中第 15 行的情节，我在这里找到了一些想法：https://gis.stackexchange.com/questions/239118/r-convert-sf-object-back-to-spatialpolygonsdataframe https://gis.stackexchange.com/questions/239118/r-convert-sf-object-back-to-spatialpolygonsdataframe

然而使用这种方法是行不通的。

您只是忘记设置data论据中的leaflet()功能。此外，您不需要转换sf反对sp format:

# packages
library(leaflet)
library(eurostat)
library(dplyr)
library(ggplot2)

options(readr.default_locale=readr::locale(tz="Europe/Berlin"))
df60 <- get_eurostat_geospatial(resolution = 60)
#> sf at resolution 1:60 read from local file

CE.sf <- df60 %>%   
  filter(LEVL_CODE == 2 & CNTR_CODE %in% c("AT","CZ","DE","HU","PL","SK")) %>% 
  select(NUTS_ID) 

plot(CE.sf)

leaflet(CE.sf) %>% 
  addProviderTiles("CartoDB.Positron") %>% 
  addPolygons(color = "green")

^{Created on 2020-05-01 by the reprex package https://reprex.tidyverse.org (v0.3.0)}