Minimal FEA API about topopt.jl HOT 3 OPEN

I like this! I use FEASolver for some of my other work related to elastic body simulation, but do not necessarily need it nested in an optimization. In particular, I find the problem definition -> FEA solver pipeline convenient, and I can just manually set the corresponding indicator variable to 1 in the voxel grid.

from topopt.jl.

And for a lot of people that I know, they look at TopOpt.jl especially to look for example code for the FEA implementation. It'd be great if we can have a unified, high-level API for defining these FEA problems that is compatible with all the downstream in the TopOpt stack, while allowing users to swiftly try out different FEA backends (similar to my fabulous experience in JuMP).

from topopt.jl.

Ya technically the API of the solver is most of the FEA API but sometimes we need to iterate over the elements, e.g. when computing the gradient of the compliance.

from topopt.jl.