Ah! I did not know these exist.

But maybe one can generate a classic ERC from it, yes.

With * / and limits, this might be even possible in theory. Will brainstorm a bit today.

Maybe one can create helper parameter for every cell in the grid.

In the 2 dimensional case, with cell grid (i,j), one maybe can create a dial that is ercd in a way that is 1 if the bends are dialed within the dimensions of the grid and 0 otherwise.

Then one can try to solve the problem locally.

What I do here is I have a grid of joint poses and if the figure is posed not on a grid point then there is an interpolation between the corners of the cell the pose is in.

But that is a different problem. Unless one needs animation, I think ERC-by-python is good.

But I will think, thanks for the suggestion