DataTransform()             : base(new Range(double.MinValue, double.MaxValue))         {         }          /// <summary>         /// Returns a value in data coordinates without convertion.         /// </summary>         /// <param name="dataValue">A value in data coordinates.</param>         /// <returns></returns>         public override double DataToPlot(double dataValue)         {             return dataValue;         }          /// <summary>         /// Returns a value in 