In keyframeset.cpp: difference between "active point" and a "waypoint" ?

I’m puzzled by the code in ./synfig-studio/src/synfigapp/actions/keyframeset.cpp

There are two methods:

  • Action::KeyframeSet::scale_activepoints
  • Action::KeyframeSet::scale_waypoints

What is the difference between an “active point” and a “waypoint” in that context?

Here’s ActivePoint class: … ivepoint.h . I think they may be used (if they are at all) for DynamicList elements enabled/disabled status switching. If that’s the case, well, perhaps they are kinda like a very specific kind of waypoints.