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When an agent is created its DG is empty and it gets populated by the Behaviour Modules of its parent Agent Group.
At the beginning of the simulation, each Behaviour Module will either add new nodes or initialize some metadatas. The Behaviour Modules will keep editing the graph or the metadatas during the simulation.
The available Behaviour Modules will only modify the Agent metadatas listed in the Metadata page.
Nodes and Operators
The DG is built around nodes. Each node has a set of ports and ports of the same type can be connected.
Of course depending on the value of each port during the simulation the resulting ouput pose will be different.
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Atoms Crowd has some default operators, but users can create new ones in C++ to achieve custom results. The techinical documentation explain how you can create new operators in c++.
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