Noeud de Valeur

         Cette page à besoin d'être traduite, soyez patient et/ou participez!

Une Noeud de Valeur est une valeur qui peut changer dans le temps.

A ValueNode represents a description of a value and how it changes (or doesn't!) over time.

ValueNodes are the things we see as the value for every parameter of every layer. The waypoints visible in the timetrack dialog are also part of the ValueNode - waypoints are how Animated ValueNodes work out what value to be at each point in time.

Each ValueNode (and hence each Parameter in Synfig has one of 13 Types.

There are three kinds of ValueNodes in Synfig. In the following examples the ValueNode's type is a real number in each case:

Noeuds de Valeurs Constants

These have a single value for all time, and no waypoints. An example of such a ValueNode would be:

"3.4, for ever"

Noeuds de Valeurs Animés

These have Points de Passages that specify their value at particular points in time. For times which don't have a value specified, the value is calculated by interpolating between the waypoints. An example would be:

"3.4 at the beginning of the animation,
move smoothly up to 7.6 at time = 10 seconds,
then jump instantly to 2.0
and stay there until the end of time"

Noeuds de Valeurs Convertis

These are ValueNodes which have been Converted into sub-parameters, each of which is itself a ValueNode. Right-clicking on a parameter and selecting a type from the 'convert' sub-menu allows you to convert a ValueNode. Converted ValueNodes don't have waypoints themselves, but their sub-parameters may do. An example would be:

 "start at 3.4 and linearly increase by 1.2 per second"