Method: Nyaplot::MapPlot#add_map

Defined in:
lib/mapnya/plot.rb

#add_map(name, data = nil) ⇒ Object

Add the map of individual countries instead of world map

Examples:

plot = Nyaplot::MapPlot.new
plot.add_map(JPN) #-> add the map of Japan to the plot

Parameters:

  • name (String) —

    the name of country to add

  • data (Hash) (defaults to: nil) —

    your own geojson data

See Also:



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# File 'lib/mapnya/plot.rb', line 34

def add_map(name, data=nil)
  if data.nil?
    path = File.expand_path("../datasets/countries/data/" + name.downcase + ".geo.json", __FILE__)
    map_data = JSON.parse(File.read(path))
    # pre-processing
    map_data["features"].push(map_data["features"][0]) if map_data["features"].length == 1
    country_data = Countries.df.filter{|row| row[:cca3] == name.upcase}.row(0)
    center([country_data[:lng], country_data[:lat]])
    map_data(map_data)
  else
    map_data(data)
  end
end