Specifies a reference distance for the motion. This would roughly be considered how much distance to cover over Duration. Not all simulations interpret the values the same way, so it may not be honoured exactly.

Specifies the nominal length of time for a transition. A change in Distance amount will typically take around this amount of time.

Specifies how much the duration extends depending on the covered distance. This is an exponent of that distance distance ^ DurationExp: a value of 0 is a constant Duration, unaffected by distance; a value of 1 is a multple of the duration.

For a Type="Easing", this specifies which easing should be used.

Specifies the basic type of animation for the transition. The meaing of the other properties varies depending on this type.

Defines the unit of the animated variable. This is used to establish reasonable defaults and apply appropriate multipliers.