D-Net

	/**

	 Source: https://stackoverflow.com/questions/5294955/how-to-scale-down-a-range-of-numbers-with-a-known-min-and-max-value

	 f(min) = a

	 f(max) = b

	 f(x) = x - min   ===>   f(min) = min - min = 0

        	 x - min                                  max - min

	 f(x) = ---------   ===>   f(min) = 0;  f(max) =  --------- = 1

	        max - min                                 max - min

	       (b-a)(x - min)

	f(x) = --------------  + a

	          max - min

	 */