class TypographicUnit::Gou
Gou
is a unit of Japanese Gou(号). See www.um.u-tokyo.ac.jp/publish_db/1996Moji/05/5901.html and www.asahi-net.or.jp/~ax2s-kmtn/ref/type_size.html for details. In this library, “初号” is Gou.new
(:first) or 0.gou.
Public Class Methods
first()
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Return a size according to “初号”.
# File lib/typographic-unit/gou.rb, line 20 def self.first 0.gou end
new(value)
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# File lib/typographic-unit/gou.rb, line 9 def initialize(value) if value.kind_of?(Unit) raise ArgumentError.new, value end unless (0..8).include?(value) or value == :first raise ArgumentError.new, value end @value = value end
Public Instance Methods
scaled_point()
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Convert the value into american point.
# File lib/typographic-unit/gou.rb, line 25 def scaled_point val = case @value when :first, 0 42.american_pt when 1 27.5.american_pt when 2 21.american_pt when 3 15.75.american_pt when 4 13.75.american_pt when 5 10.5.american_pt when 6 7.875.american_pt when 7 5.25.american_pt when 8 3.9375.american_pt end val.kind_of?(ScaledPoint) ? val : val.scaled_point end