DecimatedInterpolation = function(steps, strategy) {
            if (steps === undefined) {
              throw new Error("steps was not passed to constructor");
            }
            this.numSteps = steps;
            this.strategy = strategy || new LinearInterpolation();
          }
@class Delivers a number of decimated/stepped values for a given interval. E.g. by
using 5 steps the interpolation factor is decimated to: 0, 20, 40, 60, 80 and
100%. By default {@link LinearInterpolation} is used, however any other
{@link InterpolateStrategy} can be specified via the constructor.
@member toxi