Provide common interface of handling mean/center/median value in distributions
|Status:||Backlog||Start date:||05 Dec 2018|
1. Provide proper limits propagation on switching distribution type
2. Notification on central (i.e. mean, center or median) value change (may be some sort of signal if the value is not stored directly)
3. Limiting central value to a particular range or even fixing it (required by e.g. incident angle axis in specular instrument)
It will allow to use a broader set of distributions for incident angle and wavelength in specular instrument.