Modular knits get lots of attention of late. Most hand knitters are familiar with “domino knitting”. Horst Schultz , Vivian Hoxbro, Iris Schreier, Ginger Leuters, Pat Ashforth with Steve Plummer and others have written extensively on subject. The cover of one recent pub that is dedicated solely to entrelacs is shown below (how to for MK article by Cheryl Brunette archived last June may be found here).
Complicated stitch patterns often are more easily managed in simple forms. Laying out shapes in scrumbled knits or ones that emulate quilting blocks get back to math and breaking down larger shapes into smaller ones which makes me think of origami. A video source on a paper folding approach by Robert Lang may be found on TED , along with mention of a software program by the speaker (TreeMaker). The geometric shapes created by the fold lines could be translated into intarsia, simple sweater outlines laid on top or under different areas of the “folds” in graphics programs can help with placement of modules to create the final garment silhouette (perhaps a subject for a future post).