Ok, so I don't know if a "thread plotter" exists, but code like the threadPortraitAlgorithm created the need for one. It wouldn't be difficult to covert an open CNC router design (something like this: https://www.thingiverse.com/thing:3004773) to drag around a sewing-machine needle and a spool instead of a router. You see where I'm going with this, right? The intent is to create an open thread-plotter design and Arduino code to drive it, The threadPortraitAlgorithm could create the code to automate the weaving of the thread around the nails, much like a slicer creates the "gcode" to instruct the stepper motors on a 3D printer how to deposit the plastic to replicate a 3D model.

I've already begun working on a 600mm square thread plotter prototype, (parts already in transit) and I'm happy to share any experience and code in the process, and welcome any collaboration. I'm even happy to let @jennynotjen to take the lead and credit for it. (her code started it after-all) I just really want a thread-plotter, so I'm making one! (help is welcome, but not required :)

I'll keep progress posted here.

update: well ok, I see that thread art machines have actually been around for a bit. I still want to make one. Seems like we need to separate the algorithm from anything that would use it (like a CNC threading machine), which means putting the code in classes, and calling the algorithm as a library.

@jennynotjen , would you be okay if we open source this code as a library, and publish it to PyPI for pip install? (https://realpython.com/pypi-publish-python-package/)

It seems that use didn't use parameter LINE_TRANSPARENCY nowhere besides the name of the output file. Can you hint please, how to make the lines transparent and then add (not refill the line) line values to the others, so that intersections of the lines will be less transparent?
Thanks in advance

Hello
I am new to programming
Is this code written by Python version 2 or 3?
After I installed the pillow library and other libraries, the following message appeared in the program execution

Traceback (most recent call last):
File "D:\main.py", line 12, in
BOARD_WIDTH = int(args[1]) #CM
IndexError: list index out of range

To solve this problem, I did the following
args = [0, 2000,1 , 1, 300, 4000 ]
in
#GET INPUT CONSTANTS HERE

args = [0, 2000,1 , 1, 300, 4000 ]

args = sys.argv
I added and the program worked
Was my work wrong?
What should I do to improve the quality of the output?

please guide me