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Contents
require 'rbbt/util/color'
module Colorize
def self.from_name(color)
return color if color =~ /^#?[0-9A-F]+$/i
case color.to_s
when "white"
'#000'
when "black"
'#fff'
end
end
def self.continuous(array, start = :white, eend = :black)
start_color = Color.new from_name(start)
end_color = Color.new from_name(eend)
array = array.collect{|v| n = v.to_f; n = n > 100 ? 100 : n; n < 0.001 ? 0.001 : n}
max = array.max
min = array.min
range = max - min
array.collect do |v|
ratio = (v-min) / range
start_color.blend end_color, ratio
end
end
def self.distinct(array)
colors = Rbbt.share.color["diverging_colors.hex"].list.collect{|c| Color.new c}
num = array.uniq.length
times = num / 12
all_colors = colors.dup
factor = 0.3 / times
times.times do
all_colors.concat colors.collect{|n| n.darken(factor) }
end
value_color = Hash[*array.uniq.zip(all_colors).flatten]
value_color.values_at *array
end
def self.tsv(tsv)
values = tsv.values.flatten
if Fixnum === values.first or (values.first.to_f != 0 and values[0] != "0")
value_colors = Misc.process_to_hash(values){continuous(values)}
else
value_colors = Misc.process_to_hash(values){distinct(values)}
end
if tsv.type == :single
Hash[*tsv.keys.zip(value_colors.values_at(*values)).flatten]
else
Hash[*tsv.keys.zip(values.collect{|vs| value_colors.values_at(*vs)}).flatten]
end
end
end
Version data entries
85 entries across 85 versions & 1 rubygems