Point along line like the "centroid" of a linestring

[tordans]

Sometimes I simplify lines to just points (for minimal QA/debug info) or add points as well as the lines (for labels)

Right now I use the :centorid() for this.
However, when the lines are non-straight, those points don't end up on the line.

It would be nice if there where a pendant to :centorid() for lines or an along (Turf) helper to set it 50% of the way.

[joto]

There is already a change in master that allows getting any of the nodes in a way as point. That's not exactly what you are asking for, but in most cases I have seen the only issue is really to get any point on the line as a "representative" of that line, no matter which point it is exactly. So this might already solve your problem. A LineInterpolatePoint function might still be useful though.