#'Get NAVER map and use KAKAO api
#'
#'get_kakao_navermap will get NAVER Static map and it use NAVER Static map api.
#'you can use diameter, nomination or address.
#'you can use this function when you have id and secret
#'https://developers.naver.com/main/
#'
#' @param center the center of map, you can use diameter, nomination or address
#' @param zoom map zoom, it is 1~14 integer
#' @param size rectangular dimension in map
#' @param format image format
#' @param crs Enter the EPSG coordinate system code value. "EPSG:4326" is default
#' @param baselayer you can select "satellite" or "default". default is general map
#' @param colors color or black-white
#' @param overlayer you can use "anno_satellite","bicycle", "roadview", "traffic". It's default to use all of them. anno_satellite is Satellite overlay map (overlapping text, road lines, and icons used for satellite maps), bicycle is bicycle overlay map, roadview is roadview overlay map and traffic is Real-time Traffic Overlay Map
#' @param markers data.frame with first column longitude, second column latitude, markers displayed in map
#' @param markers_ab same as markers but it will show alphabets
#' @param naver_key NAVER api client id
#' @param url_2 NAVER register url, default is http://naver.com. you should input your url if you have different url
#' @param keyword if you use nomination then you input TRUE
#' @param address if you use address then you input TRUE, then you should input keyword FALSE, when you use diameter you should input FALSE for keyword and address
#' @param kakao_key KAKAO REST api key
#' @param naver_secret NAVER api client secret
#' @param category_group_code you can narrow range. you can reference code at https://github.com/subinjo92/nkmap
#' @param messaging turn messaging on.off
#' @param urlonly return url only
#' @param force if the map is on local file, should a new map be looked up or not
#' @param where where shoul the tile drawer be located
#' @param archiving use archived maps by changing to TRUE you agree to abide by any of the rules governing caching naver maps
#' @return NAVER static map
#' @examples
#' data("firestation")
#' ggmap(get_kakao_navermap(center = c(lon = 126, lat = 35), zoom = 3, naver_key = naver_key, keyword = F, address = F, kakao_key = kakao_key, naver_secret = naver_secret, overlayer = c("anno_satellite")))
#' ggmap(get_kakao_navermap(center = firestation[1, '주소'], zoom = 10, naver_key = naver_key, keyword = F, address = T, kakao_key = kakao_key, naver_secret = naver_secret, baselayer ='satellite', overlayer = c("anno_satellite", 'traffic', 'roadview')))
#' ggmap(get_kakao_navermap(center = firestation[1, '소방서'], zoom = 10, naver_key = naver_key, keyword = T, address = F, kakao_key = kakao_key, naver_secret = naver_secret, baselayer ='satellite'))
#' @export
get_kakao_navermap <- function (center = c(lon = 126.9849208, lat = 37.5664519), zoom = 4,
size = c(640, 640), format = c("png", "jpeg", "jpg"),
crs = c("EPSG:4326", "NHN:2048", "NHN:128", "EPSG:4258",
"EPSG:4162", "EPSG:2096", "EPSG:2097", "EPSG:2098",
"EPSG:900913"),
baselayer = c("default", "satellite"), color = c("color", "bw"),
overlayers = c("anno_satellite", "bicycle",
"roadview", "traffic"),
markers, markers_ab, naver_key, url_2 = 'http://naver.com',
keyword = FALSE, address = FALSE,
kakao_key, naver_secret, category_group_code,
filename = "ggmapTemp", messaging = FALSE, urlonly = FALSE,
force = FALSE, where = tempdir(), archiving = TRUE, ...)
{
args <- as.list(match.call(expand.dots = TRUE)[-1])
argsgiven <- names(args)
crs <- match.arg(crs)
if (address) {
center <- as.numeric(geocode_naver(center, naver_key, naver_secret))
}
if (keyword){
center_temp <- geocode_keyword_kakao(center, kakao_key, category_group_code)
print(center_temp)
demand <- as.numeric(readline('원하는 결과값의 번호를 입력해주세요: '))
center <- as.numeric(center_temp[demand, 2:3])
}
if ("center" %in% argsgiven) {
if (!((is.numeric(center) && length(center) == 2) ||
(is.character(center) && length(center) == 1))) {
stop("center of map misspecified, see ?get_googlemap.",
call. = F)
}
if (all(is.numeric(center))) {
lon <- center[1]
lat <- center[2]
if (lon < -180 || lon > 180) {
stop("longitude of center must be between -180 and 180 degrees.",
" note ggmap uses lon/lat, not lat/lon.", call. = F)
}
if (lat < -90 || lat > 90) {
stop("latitude of center must be between -90 and 90 degrees.",
" note ggmap uses lon/lat, not lat/lon.", call. = F)
}
}
}
if ("zoom" %in% argsgiven) {
if (!(is.numeric(zoom) && zoom == round(zoom) && zoom >
0)) {
stop("zoom must be a whole number between 1 and 14",
call. = F)
}
}
if ("size" %in% argsgiven) {
stopifnot(all(is.numeric(size)) && all(size == round(size)) &&
all(size > 0))
}
if ("markers" %in% argsgiven) {
markers_stop <- TRUE
if (is.data.frame(markers) && all(apply(markers[, 1:2],
2, is.numeric)))
markers_stop <- FALSE
if (class(markers) == "list" && all(sapply(markers, function(elem) {
is.data.frame(elem) && all(apply(elem[, 1:2], 2,
is.numeric))
})))
markers_stop <- FALSE
if (is.character(markers) && length(markers) == 1)
markers_stop <- FALSE
if (markers_stop)
stop("improper marker specification, see ?get_navermap.",
call. = F)
}
if ("markers_ab" %in% argsgiven) {
markers_ab_stop <- TRUE
if (is.data.frame(markers_ab) && all(apply(markers_ab[, 1:2],
2, is.numeric)))
markers_ab_stop <- FALSE
if (class(markers_ab) == "list" && all(sapply(markers_ab, function(elem) {
is.data.frame(elem) && all(apply(elem[, 1:2], 2,
is.numeric))
})))
markers_ab_stop <- FALSE
if (is.character(markers_ab) && length(markers_ab) == 1)
markers_ab_stop <- FALSE
if (markers_ab_stop)
stop("improper marker specification, see ?get_navermap.",
call. = F)
}
if ("filename" %in% argsgiven) {
filename_stop <- TRUE
if (is.character(filename) && length(filename) == 1)
filename_stop <- FALSE
if (filename_stop)
stop("improper filename specification, see ?get_navermap",
call. = F)
}
if ("messaging" %in% argsgiven)
stopifnot(is.logical(messaging))
if ("urlonly" %in% argsgiven)
stopifnot(is.logical(urlonly))
format <- match.arg(format)
color <- match.arg(color)
baselayer <- match.arg(baselayer)
crs <- match.arg(crs)
overlayers <- match.arg(overlayers, several.ok = TRUE)
if (!missing(markers) && class(markers) == "list")
markers <- list_to_dataframe(markers)
if (!missing(markers_ab) && class(markers_ab) == "list")
markers_ab <- list_to_dataframe(markers)
base_url <- "https://openapi.naver.com/v1/map/staticmap.bin?"
center_url <- if (all(is.numeric(center))) {
center <- round(center, digits = 6)
lon <- center[1]
lat <- center[2]
paste0("center=", paste(lon, lat, sep = ","))
}
else {
stop("improper center specification, see ?get_navermap.",
call. = F)
}
zoom_url <- paste0("level=", zoom)
size_url <- paste0("w=", paste(size, collapse = "&h="))
format_url <- paste0("format=", format)
baselayer_url <- paste0("baselayer=", baselayer)
overlayers_url <- paste0("overlayers=", paste(overlayers,
collapse = ","))
key_url <- paste0("clientId=", naver_key)
url_2_url <- paste0("url=", url_2)
crs_url <- paste0("crs=", crs)
color_url <- paste0("color=", color)
markers_url <- if (!missing(markers)) {
if (is.data.frame(markers)) {
paste("markers=", paste(apply(markers, 1, function(v) paste(round(v,
6), collapse = ",")), collapse = ","), sep = "")
}
else {
paste("markers=", markers, sep = "")
}
}
else {
""
}
markers_ab_url <- if (!missing(markers_ab)) {
if (is.data.frame(markers_ab)) {
paste("markers_ab=", paste(apply(markers_ab, 1, function(v) paste(round(v,
6), collapse = ",")), collapse = ","), sep = "")
}
else {
paste("markers_ab=", markers_ab, sep = "")
}
}
else {
""
}
post_url <- paste(key_url, url_2_url, crs_url, center_url, zoom_url, size_url,
baselayer_url, overlayers_url, format_url, markers_url, markers_ab_url,
sep = "&")
url <- paste(base_url, post_url, sep = "")
url <- gsub("[&]+", "&", url)
if (substr(url, nchar(url), nchar(url)) == "&") {
url <- substr(url, 1, nchar(url) - 1)
}
url <- URLencode(url)
if (urlonly)
return(url)
if (nchar(url) > 2048)
stop("max url length is 2048 characters.", call. = FALSE)
map <- file_drawer_get(url)
if (!is.null(map) && !force)
return(map)
tmp <- tempfile()
download.file(url, tmp, quiet = !messaging, mode = "wb")
message(paste0("Map from URL : ", url))
if (format == "png") {
map <- png::readPNG(tmp)
}
else if (format == "jpg") {
map <- jpeg::readJPEG(tmp)
}
if (color == "color") {
map <- apply(map, 2, rgb)
}
else if (color == "bw") {
mapd <- dim(map)
map <- gray(0.3 * map[, , 1] + 0.59 * map[, , 2] + 0.11 *
map[, , 3])
dim(map) <- mapd[1:2]
}
class(map) <- c("ggmap", "raster")
ll <- get_border_lon_lat(center[1], center[2], zoom, size[1],
size[2])
attr(map, "bb") <- data.frame(ll.lat = ll[2], ll.lon = ll[1],
ur.lat = ll[4], ur.lon = ll[3])
out <- t(map)
attr(map, "source") <- "naver"
attr(map, "maptype") <- "naver"
attr(map, "zoom") <- zoom
if (archiving)
file_drawer_set(url, out)
out
}
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