How to find an edge from a Point3D?

[matthes]

Edit: topic sounds similar to this one, but is not the same. I do not need to re-align on future moves, and my components are not glued to faces. I am just dealing with bare edges.

Observers that make changes to elements

Observers would seem to be an ideal method for doing something like this trivial example: Whenever user adds an instance of a particular component which is glued to a face Drop a perpendicular from its local XY center to the nearest edge of that face. Move the instance center to that point and rotate it about its local z axis so that it’s X axis aligns with the edge. Go through the same process whenever the user moves that instance. Using observers I would need a EntitiesObserver.onElementA…