create_latest_map.jl

@@ -1,143 +0,0 @@
-#!/usr/bin/env julia
-#
-using DataFrames
-using Dates
-using CSV
-using EzXML
-using Images
-using Colors
-using ImageDraw
-using CairoMakie
-using Printf
-using TimeZones
-
-function get_station_lat_lon(station_id)
-	stations = readxml("activestations.xml")
-	station_node = findfirst("/stations/station[@id=\"$station_id\"]", stations)
-	return parse.(Float32, [station_node["lat"], station_node["lon"]])
-end
-
-tryparsem(T, str) = something(tryparse(T, str), missing)
-
-function get_tile_xy_fraction(lat, lon, zoom)
-	n = 2^zoom
-	lat_rad = lat * pi / 180
-	xtile = (lon + 180) / 360 * n
-    ytile = (1 - log(tan(lat_rad) + 1 / cos(lat_rad)) / pi) / 2 * n
-	return xtile, ytile
-end
-
-function get_tile_xy(lat, lon, zoom)
-	xf, yf = get_tile_xy_fraction(lat, lon, zoom)
-	return (Int(floor(xf)), Int(floor(yf)))
-end
-
-function get_tile(x, y, zoom)
-	url = "https://tile.openstreetmap.org/$zoom/$x/$y.png"
-	tmp_path = download(url)
-	tile = load(tmp_path)
-	return tile
-end
-
-function get_tile_by_lat_lon(lat, lon, zoom)
-	xtile, ytile = get_tile_xy(lat, lon, zoom)
-	return get_tile(xtile, ytile, zoom)
-end
-
-function get_meters_per_pixel(lat, zoom)
-	px_per_tile = 256
-	return 156543.03 * cos(lat) / (2^zoom)
-end
-
-function get_map(lat, lon, zoom)
-	px_per_tile = 256
-	meters_per_pixel = get_meters_per_pixel(lat, zoom)
-	xf, yf = get_tile_xy_fraction(lat, lon, zoom)
-	x0, y0 = (Int(floor(xf)), Int(floor(yf)))
-	xpoint = 1 + px_per_tile + Int(floor((xf - x0) * px_per_tile))
-	ypoint = 1 + px_per_tile + Int(floor((yf - y0) * px_per_tile))
-	map = Array{RGB{N0f8}, 2}(undef, (px_per_tile * 3, px_per_tile * 3))
-	for i in -1:1
-		x = x0 + i
-		ioffset = 1 + (i + 1) * px_per_tile
-		for j in -1:1
-			y = y0 + j
-		    joffset = 1 + (j + 1) * px_per_tile
-			img = get_tile(x, y, zoom)
-			map[joffset:joffset+px_per_tile-1, ioffset:ioffset+px_per_tile-1] = img
-		end
-	end
-	draw!(map, Ellipse(CirclePointRadius(xpoint, ypoint, 6)),
-		  RGB{N0f8}(0.5, 0.0, 0.5))
-	return map, xpoint, ypoint
-end
-
-function get_realtime_data_file(station)
-    station = uppercase(station)
-	url = "http://www.ndbc.noaa.gov/data/realtime2/$station.txt"
-	return download(url)
-end
-
-function get_realtime_dataframe(station_name; timezone=tz"America/New_York")
-	station_fname = get_realtime_data_file(station_name)
-    lines = open(station_fname) do file
-        readlines(file)
-    end
-    dt_array = (y, mon, d, hr, min) -> (astimezone.(ZonedDateTime.(
-        DateTime.(y, mon, d, hr, min), tz"UTC"), timezone))
-	deg_c_to_f = passmissing(x -> x * 9.0 / 5.0 + 32.0)
-	speed_ms_to_mph = passmissing(x -> 0.44704 * x)
-    lines[1] = lstrip(lines[1], '#')
-    data = join([lines[1:1]; lines[3:end]], "\n")
-    df = CSV.read(IOBuffer(data), DataFrame; header=1, delim=" ",
-                  ignorerepeated=true)
-	select!(df,
-		[:YY, :MM, :DD, :hh, :mm] => dt_array => :TIME,
-		:WDIR => x -> tryparsem.(Int, x),
-		:WSPD => x -> speed_ms_to_mph.(tryparsem.(Float32, x)),
-		:GST => x -> speed_ms_to_mph.(tryparsem.(Float32, x)),
-		:PRES => x -> tryparsem.(Float32, x),
-		:ATMP => x -> deg_c_to_f.(tryparsem.(Float32, x)),
-		:WTMP => x -> deg_c_to_f.(tryparsem.(Float32, x));
-		renamecols=false)
-	return df
-end
-
-function plot_station_data(station_name, station_map, station_x, station_y, df, i)
-	obs_time = df.TIME[i]
-	fig, ax, p = image(rotr90(station_map),
-		               axis=(aspect=DataAspect(),
-                             title="$station_name $obs_time"))
-    hidespines!(ax)
-    hidedecorations!(ax)
-	wind_rad = deg2rad(90 - df.WDIR[1])
-	wind_mph = df.WSPD[i]
-	txt = @sprintf "Air: %.1f F, Water: %.1f F, Wind: %.1f mph" df.ATMP[i] df.WTMP[i] wind_mph
-	wind_vec = 50 * Vec2f(cos(wind_rad), sin(wind_rad)) * wind_mph / 10
-	tooltip!(ax, station_x, station_y, txt; offset=10)
-	arrows!(ax, [Point2f(station_x, station_y)], [wind_vec], fxaa=true,
-	        linewidth=2, align=:center, arrowhead='⟰')
-	return fig
-end
-
-function main()
-    if (length(ARGS) < 1)
-        println("Usage: create_latest_map.jl station_name [out_path]")
-        exit(1)
-    end
-    station_name = ARGS[1]
-
-    out_fname = "$station_name.png"
-    if (length(ARGS) > 1)
-        out_fname = ARGS[2]
-    end
-
-    lat, lon = get_station_lat_lon(station_name)
-	station_map, station_x, station_y = get_map(lat, lon, 14)
-    df = get_realtime_dataframe(station_name; timezone=tz"America/New_York")
-    fig = plot_station_data(station_name, station_map, station_x, station_y,
-                            df, 1)
-    save("$station_name.png", fig)
-end
-
-main()