Method: Rubyvis::Scale::Ordinal#to_proc

Defined in:
lib/rubyvis/scale/ordinal.rb

#to_proc ⇒ Object

Return

lambda {|d| scale_object.scale(d)}

Useful as value on dynamic properties

scale=Rubyvis.ordinal("red","blue","green")
bar.fill_style(scale)

is the same as

bar.fill_style(lambda {|x| scale.scale(x)})



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# File 'lib/rubyvis/scale/ordinal.rb', line 74

def to_proc
  that=self
  lambda {|*args| args[0] ? that.scale(args[0]) : nil }
end