I am implementing skeleton-based parcel subdivision based on a research paper https://www.cs.purdue.edu/cgvlab/papers/aliaga/eg2012.pdf [www.cs.purdue.edu] and have successfully implemented most parts. I used polyexpand2d to create the skeleton and made cuts along the skeleton points to the border. However, I am now struggling to select specific points along the center line, as highlighted in the attached image, and I'm unsure how to achieve this. Need help.