File: bar_conversion.rb

# bar_conversion.rb

Path: | lib/gruff/bar_conversion.rb
Last Update: | Tue Mar 03 10:55:22 -0700 2009

Original Author: David Stokar

          This class perfoms the y coordinats conversion for the bar class.

          There are three cases:

      1. Bars all go from zero in positive direction
                  2. Bars all go from zero to negative direction
                  3. Bars either go from zero to positive or from zero to negative

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