Simulation element tree
Facsimile needs to provide an element tree, which represents the elements in the simulation, and their position, appearance, etc. The tree will be a form of scene-graph and - although not present initially - will need to support Newtonian physics and kinematic (forward and reverse) features. This will form the foundation for all future Facsimile development - so it must be done right.
* Blueprints in grey have been implemented.