Class: JSONToChoropleth
- Inherits:
-
Object
- Object
- JSONToChoropleth
- Defined in:
- lib/jsontochoropleth.rb
Instance Method Summary collapse
- #genfill(type) ⇒ Object
-
#initialize(input, location, number) ⇒ JSONToChoropleth
constructor
A new instance of JSONToChoropleth.
Constructor Details
#initialize(input, location, number) ⇒ JSONToChoropleth
Returns a new instance of JSONToChoropleth.
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# File 'lib/jsontochoropleth.rb', line 4 def initialize(input, location, number) @input = JSON.parse(input) @location = location @number = number end |
Instance Method Details
#genfill(type) ⇒ Object
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# File 'lib/jsontochoropleth.rb', line 10 def genfill(type) countryhash = Hash.new rangehash = Hash.new fullcount = 0 @input.each do |r| fullcount = fullcount + r[@number].to_f end average = fullcount.to_f/@input.length.to_f if type == "percent" rangehash["#FFFF99"] = average/3 rangehash["#FFFF00"] = average/2 rangehash["#FFA800"] = average rangehash["#FF6800"] = average/0.5 rangehash["#FF0000"] = average/0.25 elsif type == "full" rangehash["#FFFF99"] = average.to_f/3.0 rangehash["#FFFF00"] = average.to_f/2.0 rangehash["#FFA800"] = average rangehash["#FF6800"] = average*2 rangehash["#FF0000"] = average*4 end @input.each do |t| numusers = t[@number] prevv = 0 count = 0 rangehash.each do |k,v| if (numusers > prevv) && (numusers <= v) countryhash[t[@location]] = k elsif (count == 4) && (numusers >= v) countryhash[t[@location]] = k end prevv = v count = count + 1 end end return JSON.pretty_generate(countryhash) end |