Share 'Creating a knitting pattern of an image'

Hallo, first I want to explain my question. I have an digital image, which I want a pattern of it by creating lines in a specific rectangular.  The dimension of the image and the regtangular is 3:4.  The boundary of each  side is divided by several points. So the endpoints of the lines which should create the pattern shell cross these points. In the attachment there is an example of what I wan…