Dear @DanielPiker,

I would like to ask about PIndex in K2 solver more about code behind.

For the most simplest case, let say I have two springs. Geometrically lines-length goals are connected by one of end points. More simply it is 3 point polyline.

In such case in the solver do you have 4 particles indexed 0 1 2 3 or 3 particles as one point of two springs in this case is duplicate?

If later do you somehow delete and sort all points ?