code: function(minIn, maxIn, minOut, maxOut) {
  	if(arguments.length == 1 && arguments[0].input !== undefined && arguments[0].output !== undefined){ //opts object
  		var arg = arguments[0];
  		minOut = arg.output.min;
  		maxOut = arg.output.max;
          maxIn = arg.input.max;
          minIn = arg.input.min;
  	}
  	this.mapFunction = new LinearInterpolation();
  	this.setInputRange(minIn, maxIn);
  	this.setOutputRange(minOut, maxOut);
  }
docs: @class This class maps values from one interval into another. By default the mapping
  is using linear projection, but can be changed by using alternative
  {@link math.InterpolateStrategy} implementations to achieve a
  non-regular mapping.
  
  @member toxi
  
  @description Creates a new instance to map values between the 2 number ranges
  specified. By default linear projection is used.
  @param {Number} minIn
  @param {Number} maxIn
  @param {Number} minOut
  @param {Number} maxOut