[ESPResSo] Creation of Rigid Structures in Espresso

[Lorenzo Isella]

Dear All,
My problem is that I would like to create e.g. a linear chain
consisting of 8 particles. Each particle is connected e.g. to its left
neighbor via a single contact point.
Ideally, this chain should be a perfectly rigid body. What is the best
way to create such a thing in Espresso? Should I use bond-angle
interactions as described in the user guide or is there any better way
for doing this?
Many thanks

Lorenzo