code: public void setZeroBased(boolean zeroBased) {
  		if(zeroBased != this.zeroBased) {
  			this.zeroBased = zeroBased;
  			for(ValueDimension dim: tickInfo.keySet())
  				tickInfo.get(dim).setZeroBased(zeroBased);
  		}
  	}
docs: Sets the operation mode.
  In zero-based mode coordinate axes always start at 0 and end near the maximum value of the corresponding dimension.
  Otherwise axes start at the minimum value.
  @param zeroBased Operation mode