Reading the notification on what is new was the ability to turn overlapping designs like that into knotwork. Apparently there is an entire rabbit hole into the math of it. Artcam had that a while back and I played with it a bunch when I had access to it.
You could also use the path effects, offset tool to offset your original curve to the spacing you want. But you still have to make shapes at every corner to remove the parts you don’t want. It’s still a labour-intensive process.
I’m very much a visual learner so I wont be much help in terms of explaining things. Not in English, but if you could figure out a way to do this, (9th minute of video) that might be the hack you’re looking for
If you can get Ian Bain’s book there are methods for working by hand that can be applied easily in inkscape, The simplest case is to make an array of the crossing points that you can rotate 90 degrees and have the over under reverse. You can also change some so what was a crossover becomes a near pass and changes the design.
In Autocad an array of blocks would make this very easy as you could bounce designs all over the place but with Gimp or Inkscape the Bain hand layout system could be employed.
You are right I was looking at the very book you noted and it says so on the back. What threw me was that I. Bain focuses mainly on the specifics of constructing knotwork while G. Bain is much wider-ranging to include animals and spirals etc.
That is the real trick of Knotwork. If you follow one path alternately over and under, as long as there are just two lines intersecting, it will all work. That you could automate, and as far as I know, that is how it is done.
I also found this reference…
" Other improvements include tweaks to the Knot LPE , the LPE selection dialog , the Roughen LPE , the Fill between many option, and Inkscape keeps going when selecting an object that is used for the Pattern-Along-Path LPE ."
in a discussion of Inkscape. Perhaps one of you programming geniuses can help find this.