How can I map distances between joint areas in contact using ParaView 5.9.0 ?

How can I map distances between joint areas in contact using ParaView 5.9.0 ?

Ruler source ?

I’m afraid there is no tool to compute that directly in ParaView. This sound more like a job for a simulation, unless you know the details of the computation to be done, which could be implemented in a ProgrammableFilter.