class Util
Public Class Methods
cm_to_px(cm)
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# File lib/util.rb, line 2 def Util.cm_to_px(cm) return cm / 2.5 * 72 end
is_number?(object)
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# File lib/util.rb, line 10 def Util.is_number?(object) true if Float(object) rescue false end
number_format(number)
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# File lib/util.rb, line 14 def Util.number_format(number) '%.2f' % number.to_f end
trans_y(off, y)
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# File lib/util.rb, line 6 def Util.trans_y(off, y) 720 - off - y end