How to grow or reload an object ?

edit

hi!

I am doing research in additive manufacturing and want to use gazebo for simulation. Id like the simulation to show the object 'growing' as it's being constructed.

how could one 'simulate' a growing/expanding form in gazebo ? i.e. you start with a cube and grow it by tiny bits. I don't care about the dynamics, the object can be static.

would it be possible to create a mock object and reload it's mesh ar 2-3 Hz ? everyone adding new vertices and edges as the object is being constructed ?

presumably it's not possible to directly change the mesh to avoid reloading the whole thing ?

any advice is greatly appreciated !