## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  message = FALSE,
  fig.width = 6,
  fig.height = 6.5,
  dpi = 120,
  fig.bg = "white",
  dev.args = list(bg = "white")
)
jpmap_build_full_vignettes <- identical(tolower(Sys.getenv("JPMAP_FULL_VIGNETTES")), "true") ||
  identical(tolower(Sys.getenv("IN_PKGDOWN")), "true")
jpmap_available_data <- if (jpmap_build_full_vignettes) {
  jpmap::available_jpmap_data()
} else {
  jpmap::available_jpmap_data(data_dir = tempfile())
}
jpmap_has_okinawa_data <- any(jpmap_available_data$year == 2024 & jpmap_available_data$pref_code == "47")

## ----eval = jpmap_has_okinawa_data--------------------------------------------
# library(tidyverse)
# library(jpmap)
# 
# okinawa_bases <- jp_us_military_bases |>
#   filter(
#     prefecture == "Okinawa",
#     base != "Okinawa U.S. military facilities"
#   )
# 
# okinawa_main_island <- c(
#   "那覇市", "宜野湾市", "浦添市", "名護市", "糸満市", "沖縄市",
#   "豊見城市", "うるま市", "南城市", "国頭村", "大宜味村", "東村",
#   "今帰仁村", "本部町", "恩納村", "宜野座村", "金武町", "読谷村",
#   "嘉手納町", "北谷町", "北中城村", "中城村", "西原町", "与那原町",
#   "南風原町", "八重瀬町"
# )
# okinawa_main_island_min_area <- 5e6
# keep_okinawa_main_island <- function(map) {
#   filtered <- map |>
#     filter(municipality_ja %in% okinawa_main_island)
# 
#   filtered |>
#     mutate(area_m2 = as.numeric(sf::st_area(filtered))) |>
#     filter(area_m2 >= okinawa_main_island_min_area) |>
#     select(-area_m2)
# }
# 
# okinawa_main_map <- jp_map("municipality", include = "Okinawa", inset = FALSE) |>
#   keep_okinawa_main_island()
# 
# okinawa_bases_xy <- okinawa_bases |>
#   jpmap_transform(output_names = c("x", "y"), inset = FALSE)

## ----municipal-base-points, eval = jpmap_has_okinawa_data---------------------
# ggplot(okinawa_main_map) +
#   geom_sf(
#     fill = "grey92",
#     color = "grey35",
#     linewidth = 0.12
#   ) +
#   coord_sf(
#     crs = jpmap_crs(),
#     datum = sf::st_crs(4326)
#   ) +
#   geom_point(
#     data = okinawa_bases_xy,
#     aes(x = x, y = y, color = branch),
#     size = 2.6,
#     alpha = 0.9
#   ) +
#   ggthemes::scale_color_colorblind(name = "Branch") +
#   labs(
#     title = "Selected U.S. base points on Okinawa Island",
#     caption = "Boundary: MLIT N03 administrative area data, January 1, 2024."
#   ) +
#   theme_gray() +
#   theme(
#     axis.title = element_blank(),
#     panel.grid.minor = element_blank(),
#     legend.background = element_rect(fill = "white", color = NA),
#     plot.title = element_text(face = "bold", color = "#001040"),
#     plot.caption = element_text(color = "#2C2A29", hjust = 0, size = 8)
#   )