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module Rubyvis
def self.Scale
Rubyvis::Scale
end
module Scale
def self.quantitative(*args)
Quantitative.new(*args)
end
def self.linear(*args)
Linear.new(*args)
end
def self.ordinal(*args)
Ordinal.new(*args)
end
def self.log(*args)
Log.new(*args)
end
def self.interpolator(start,_end)
if start.is_a? Numeric
return lambda {|t| t*(_end-start)+start}
end
start=Rubyvis.color(start).rgb()
_end = Rubyvis.color(_end).rgb()
return lambda {|t|
a=start.a*(1-t)+_end.a*t
a=0 if a<1e-5
return (start.a == 0) ? Rubyvis.rgb(_end.r, _end.g, _end.b, a) : ((_end.a == 0) ? Rubyvis.rgb(start.r, start.g, start.b, a) : Rubyvis.rgb(
(start.r * (1 - t) + _end.r * t).round,
(start.g * (1 - t) + _end.g * t).round,
(start.b * (1 - t) + _end.b * t).round, a))
}
end
end
end
require 'rubyvis/scale/quantitative.rb'
require 'rubyvis/scale/linear.rb'
require 'rubyvis/scale/ordinal.rb'
require 'rubyvis/scale/log.rb'
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