In a vega visualization is it possible to modify a signals value from mark's trigger?

Hello All,

I am working with a force directed graph, and want to be able to zoom in and out on it, as a result I need to know the min/max value of x/y which are computed as part of the triggers on the mark, so I would like to hook in there and update a signal's value when this happens does anyone know if you can alter a signal's value from a trigger of a mark?

Thank you!

@nyuriks can we please get some help here please?


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