Географические карты

using PlotlyJS, DataFrames, CSV, HTTP

function maps1()
    marker = attr(size=[20, 30, 15, 10],
                  color=[10, 20, 40, 50],
                  cmin=0,
                  cmax=50,
                  colorscale="Greens",
                  colorbar=attr(title="Some rate",
                                ticksuffix="%",
                                showticksuffix="last"),
                  line_color="black")
    trace = scattergeo(;mode="markers", locations=["FRA", "DEU", "RUS", "ESP"],
                        marker=marker, name="Europe Data")
    layout = Layout(geo_scope="europe", geo_resolution=50, width=500, height=550,
                    margin=attr(l=0, r=0, t=10, b=0))
    plot(trace, layout)
end
maps1()

function maps2()
    # read Data into dataframe
    url = "https://raw.githubusercontent.com/plotly/datasets/master/2014_us_cities.csv"
    df = DataFrame(CSV.File(HTTP.get(url).body))

    trace = scattergeo(;locationmode="USA-states",
                        lat=df.lat,
                        lon=df.lon,
                        hoverinfo="text",
                        text=[string(x.name, " pop: ", x.pop) for x in eachrow(df)],
                        marker_size=df.pop ./ 50_000,
                        marker_line_color="black", marker_line_width=2)
    geo = attr(scope="usa",
               projection_type="albers usa",
               showland=true,
               landcolor="rgb(217, 217, 217)",
               subunitwidth=1,
               countrywidth=1,
               subunitcolor="rgb(255,255,255)",
               countrycolor="rgb(255,255,255)")

    layout = Layout(;title="2014 US City Populations", showlegend=false, geo=geo)
    plot(trace, layout)
end
maps2()