Class for handling textual and numerical values on the axes
This class provied methods and attributes for customization of an axis. You can use it to set the options like the font, it's size or the color in which values (both numerical and textual, depending on the axis) will be drawn. For a numerical axis this class also offers you functionality to set the format in which numbers will be drawn. You can use this to set the number of decimal digits, prepend or append text etc. For a textual axis (actually: for the x-axis) this class allows you to set the text-labels which will be drawn.