GattinoPleths provides the Gattino ecosystem with choropleth visualizations. This allows us to display continuous data using a geographical feature.

usage

Usage revolves around the choropleth function:

choropleth(x::Vector{String}, y::Vector{<:Number}, rs::ChoroplethResource, colors::Vector{String} = Gattino.make_gradient((255, 255, 255), 10, 0, 0, -5))
choropleth(x::Vector{<:Any}, y::Vector{<:Number}, rs::RemoteChoroplethResource, args ...)

To this Function, we provide the two vectors we want to visualize. The x will be all-lowercase name abbreviations and the y will be our values. This is followed by a CloreplethResource or RemoteCloreplethResource, which will determine the map we load in the first place. Finally, colors is a Vector of colors, ideally a gradient -- easily created with Gattino.make_gradient((R, G, B), length, scaler_r, scaler_g, scaler_b).

using GattinoPleths
using GattinoPleths.Gattino
reds = Gattino.make_gradient((255, 255, 255), 10, 0, 0, -5))
countries = ["mx", "us", "ca", "uk", "br", "au", "it", "ch", "ru", "in", "cn", "gl", "af", "bd", "jp", "iq"]
pleth = choropleth(countries, [rand(1:100) for c in countries], GattinoPleths.world_map, reds)

From here, we can use scale! to scale our image and GattinoPleths.choropleth_legend!.

scale!(con::Context, w::Int64, h::Int64, x::Int64 = 0, y::Int64 = 0)
choropleth_legend!(con::Gattino.AbstractContext, x::Pair{String, String}, colors::Vector{String}; align::String = "top-left")

• As of right now, (0.0.9), the following resources ship with GattinoPleths:

world_map
europe_map (remote resource)
usa_map ( remote resource)

To learn more about mutating Gattino plots and using the Context, see Gattino