We introduce the Vector Animation Complex (VAC), a novel data structure for vector graphics animation, designed to support the
modeling of time-continuous topological events. This allows features of a connected drawing to merge, split, appear, or disappear at
desired times via keyframes that introduce the desired topological change. Because the resulting space-time complex directly captures
the time-varying topological structure, features are readily edited in both space and time in a way that reflects the intent of the drawing.
A formal description of the data structure is provided, along with topological and geometric invariants. We illustrate our modeling
paradigm with experimental results on various examples.