Incremental graph layout

Just the facts:
Incremental graph layout is used to stabilize graph updates.
Add, remove or modify an amount of nodes and edges without disturbing the given graph visualization.

One of the most amazing properties of uDraw(Graph) is the incremental graph layout. This feature is used when an amount of nodes and edges has to be added to a given graph. With usual layout algorithms, a small change will often cause a completely different, therefore confusing visualization. The unique incremental graph layout in uDraw(Graph) guarantees a most stable graph drawing each time parts are added, removed or modified. Using incremental layout and the API, it is even possible to show impressive animations of evolving graph structures.

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