rm(list = ls())
library("dplyr")
library("readr")
library("httr")
library("rvest")
library("geojsonio")
map <- "https://raw.githubusercontent.com/johan/world.geo.json/master/countries/AUS.geo.json" %>%
GET() %>%
content() %>%
jsonlite::fromJSON(simplifyVector = FALSE)
# http://openflights.org/data.html
airports <- read_csv("https://raw.githubusercontent.com/jpatokal/openflights/master/data/airports.dat",
col_names = FALSE)
tblnames <- read_html("http://openflights.org/data.html") %>%
html_node("table") %>%
html_table(fill = TRUE)
airports <- setNames(airports, str_to_id(tblnames$X1))
colalt <- function(x){
colorRamp(viridisLite::plasma(10), alpha = FALSE)(x) %>%
{./255} %>%
rgb()
}
airportsmin <- airports %>%
filter(country == "Australia", tz_database_time_zone != "\\N") %>%
select(name, latitude, longitude, altitude)
airpjson <- geojson_json(airportsmin, lat = "latitude", lon = "longitude")
highchart(type = "map") %>%
hc_title(text = "Airports in Australia") %>%
hc_chart(backgroundColor = "#D9E9FF") %>%
hc_add_series(mapData = map, showInLegend = FALSE,
nullColor = "#C0D890") %>%
hc_add_series(data = airpjson, type = "mappoint", dataLabels = list(enabled = FALSE),
name = "Airports", color = 'rgba(57, 86, 139, 0.5)',
tooltip = list(pointFormat = "{point.properties.name}: {point.properties.altitude} fts")) %>%
hc_mapNavigation(enabled = TRUE)
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