algorithmic modeling for Rhino
here is a solution which cut a curve in 4 curves, these curves are used to make a surface (with 4 sides; like a rectangle). I use uv position on this surface to map your polygon or whaterver curve you want. You can select the beginning of the cut of the curve with a slider. And then the espacement between cuts. I ude slider from Genepool, but there is another solution with graph mapper.
Great Thanks Laurent, it is that i want.