Nobody thus far in the comments seems to have understood that that app you linked on github gives the coordinates to place the strings.

I did.

So you got that going for ya, which is nice,

Edit: Above linked app is like Lego instructions for inputting a picture and it creates the points and lines map for you. Paint by numbers .exe.

>This tool generates string art from any picture of your choice. Pegs are first placed on the frame, and then a single-color thread is repeatedly ran from peg to peg in a straight line. The stacked segments progressively recreate the original image. This process was popularized by Petros Vrellis.

>The monochrome mode uses a single thread, while the color mode uses 3 distinct threads. The result can be exported in the SVG format.