sf

来源： https://stackoverflow.com/questions/54202315/using-r-sfst-write-to-non-public-schema-in-postgresql

来源： https://stackoverflow.com/questions/54202315/using-r-sfst-write-to-non-public-schema-in-postgresql

来源： https://stackoverflow.com/questions/58400453/cannot-plot-sf-linestring-in-r-error-in-cpl-geos-is-emptyst-geometryx

来源： https://stackoverflow.com/questions/64159838/r-detect-a-main-path-and-remove-or-filter-the-gps-trace-maybe-using-a-kernel

来源： https://stackoverflow.com/questions/64159838/r-detect-a-main-path-and-remove-or-filter-the-gps-trace-maybe-using-a-kernel

来源： https://stackoverflow.com/questions/64159838/r-detect-a-main-path-and-remove-or-filter-the-gps-trace-maybe-using-a-kernel

来源： https://stackoverflow.com/questions/63727886/proj4-to-proj6-upgrade-and-discarded-datum-warnings

来源： https://stackoverflow.com/questions/63727886/proj4-to-proj6-upgrade-and-discarded-datum-warnings

问题 I am plotting (mapping) sf objects with ggplot2 . My understanding is that since version 2.2.1 ggplot2 contains the geom geom_sf , for simple feature objects. I can produce the exact map that I want by doing the following: library(sf) library(ggplot2) # some points to start with a <- st_as_sf(data.frame(lon = c(1,4,6), lat = c(0,0,-3)), coords = c('lon', 'lat')) b <- st_as_sf(data.frame(lon = c(2.5,4), lat = c(-4.5,-5)), coords = c('lon', 'lat')) # circles around those points buf.a <- st

问题 I am plotting (mapping) sf objects with ggplot2 . My understanding is that since version 2.2.1 ggplot2 contains the geom geom_sf , for simple feature objects. I can produce the exact map that I want by doing the following: library(sf) library(ggplot2) # some points to start with a <- st_as_sf(data.frame(lon = c(1,4,6), lat = c(0,0,-3)), coords = c('lon', 'lat')) b <- st_as_sf(data.frame(lon = c(2.5,4), lat = c(-4.5,-5)), coords = c('lon', 'lat')) # circles around those points buf.a <- st