TScaleProps = class (TPersistent)  // published properties of scales
              private
                ...(removed for brevity)
              public
                constructor Create;
                destructor Destroy;
                procedure Assign(Source: TPersistent);
                procedure Changed;
                property Center: double;
                property ScaleType: TScaleType;
              published
                property Caption: string;
                property CaptionPosX: integer;
                property CaptionPosY: integer;
                property CaptionAlignment: TAlignment;
                property CaptionAnchor: TScaleUnitAnchor;
                property ColorScale: TColor;
                property DateFormat: TDTLabel;
                property DecPlaces: integer;
                property Font: TFont;
                property Logarithmic: boolean;
                property LabelType: TFigType;
                property MinTicks: integer;
                property MinRange: double;
                property RangeLow: double;
                property RangeHigh: double;
                property ShortTicks: boolean;
                property ScaleInscript: string;
                property ScalePos: integer;
                property UserTickText: string;
                property Visible: boolean read;
                property OnChange: TNotifyEvent read;
              end;