I used large rolls of 'butcher paper' mounted on a roller with a tear off bar for all my initial patterning madness of 40 years ago, but find the plate to be more user friendly today. Its so easy to take a digital pic., if you want, & too there is the software program that can analyze the digital pics from scanning them or some such designed & sold by Dr. Jones. I don't have his program or orderig info, but would not hesitate to look into it if you are as curious as I was back when. Its beats counting holes by any measurement imaginable.
FWIW, in my paper days, I made plexiglass templates that I could overlay on the pattern using 'eye-balling' for the centering method. One was 30" in dia. & the other 20" .. realized that one does not need the quadrant business to effectively evaluate a pattern, the annular circle is aprox. 50% of the area described by the 30" circle.