/// <summary>
/// PhysicalVariantToNormal translates physical values into a normal value linear along the axis
/// a physical value of the axis origin must return a value of zero
/// a physical value of the axis end must return a value of one
/// the function physicalToNormal must be provided by any derived class
/// </summary>
/// <param name="x">the physical value</param>
/// <returns>
/// the normalized value linear along the axis,
/// 0 for axis origin, 1 for axis end</returns>
public override double PhysicalVariantToNormal(Altaxo.Data.AltaxoVariant x)
{
return(PhysicalToNormal(x.ToDoubleOrNaN()));
}
