README.txt in interpolate-0.2.2 vs README.txt in interpolate-0.2.3

@@ -51,25 +51,17 @@
 
 
 == Non-Numeric Gradients
 
 For non-Numeric gradient value objects, you'll need to implement +interpolate+
-for the class in question.  Here's an example using an RGB color gradient with
-the help of the 'color' gem:
+for the class in question or provide a block to the new Interpolation object.
+Here's an example using an RGB color gradient with the help of the 'color' gem:
 
   require 'rubygems'
   require 'interpolate'
   require 'color'
 
-  # we need to implement +interpolate+ for Color::RGB
-  # in order for Interpolation to work
-  class Color::RGB
-    def interpolate(other, balance)
-      mix_with(other, balance * 100.0)
-    end
-  end
-
   # a nice weathermap-style color gradient
   points = {
     0 => Color::RGB::White,
     1 => Color::RGB::Lime,
   # 2 => ? (something between Lime and Yellow)
@@ -78,20 +70,23 @@
     5 => Color::RGB::Red,
     6 => Color::RGB::Magenta,
     7 => Color::RGB::DarkGray
   }
 
-  gradient = Interpolation.new(points)
+  gradient = Interpolation.new(points) do |left, right, balance|
+    left.mix_with(right, balance * 100.0)
+  end
 
   # what are the colors of the gradient from 0 to 7
   # in increments of 0.2?
   (0).step(7, 0.2) do |value|
     color = gradient.at(value)
     puts "A value of #{value} means #{color.html}"
   end
 
 
+
 == Array-based Interpolations
 
 Aside from single value gradient points, you can interpolate over uniformly sized
 arrays.  Between two interpolation points, let's say +a+ and +b+, the final result
 will be +c+ where <tt>c[0]</tt> is the interpolation of <tt>a[0]</tt> and
@@ -162,10 +157,10 @@
 
 == License
 
 (The MIT License)
 
-Copyright (c) 2008 Adam Collins [[e-mail]]
+Copyright (c) 2008-2009 Adam Collins [[e-mail]]
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,