test for generating stylized circuit traces from images

Author: Miller Hooks - 12.26.2021

Concept

image -> split into plates via dithering -> make image positives, negatives and masks -> halftone as needed -> voronoi stippling -> make traces - rinse/repeat

Source

Some python for doing some dithering and a dockerfile to make a CUDA docker container as a start, just in case GPU is needed.

Voronoi Stippling and Tracefinding

StippleGen2

https://github.com/evil-mad/stipplegen/releases/tag/v2.31

Dithering

https://scipython.com/blog/floyd-steinberg-dithering/ https://en.wikipedia.org/wiki/Floyd%E2%80%93Steinberg_dithering Example in Source directory

TODO

Meshroom Workflow and Interface

This seems to mirror functionally, how I see a good process for doing this working. Also it's open source and python with a QT interface so it could be aped entirely or just make the tool a plugin for Meshroom or somethign.

https://meshroom-manual.readthedocs.io/en/latest/feature-documentation/gui/index.html

Halftones

https://github.com/philgyford/python-halftone

Traces

JS Circuit Board Generator

https://codepen.io/tsuhre/pen/xgmEPe

https://github.com/vygr/Python-PCB

SKiDL

https://hackaday.com/2016/12/28/skidl-script-your-circuits-in-python/ https://devbisme.github.io/skidl/ https://github.com/devbisme/skidl https://xess.com/blog/are-you-in-an-abusive-relationship-with-your-schematic-editor/

SAT Router

monosat_router.py - https://gist.github.com/nmz787/10c60e76941a8e5de624454666ea65b3 cryptominisat_router.py - https://gist.github.com/nmz787/ae4a6121ce4aa42c2caed5b062b97c70#file-cryptominisat_router-py Based on this paper "Scalable, High-Quality, SAT-Based Multi-Layer Escape Routing" - https://dl.acm.org/doi/10.1145/2966986.2967072

PCBFlow

Looks nice. Based on CuFlow https://github.com/michaelgale/pcbflow

CuFlow looks promising

https://excamera.com/sphinx/article-cuflow-crossbar.html

Visolate: Voronoi Toolpaths for PCB Etching

https://groups.csail.mit.edu/drl/wiki/index.php?title=Visolate:_Voronoi_Toolpaths_for_PCB_Mechanical_Etch

KiCAD... Just use KiCAD. It's made by CERN

https://www.kicad.org/

Nice Containerized KiCAD for scripting. https://github.com/productize/kicad-automation-scripts https://github.com/devbisme/kicad-3rd-party-tools#layout-tools

This looks like the business https://forum.kicad.info/t/announcing-kicad-freerouting-plugin/16799

or use PCBModE. It's Pretty

https://boldport.com/pcbmode https://pcbmode.com/ https://hackaday.com/tag/pcbmode/

Selecting Via Points to Join

• Select a region via layer mask
• Select via points as a pseudo-random distrobution as FROM vias
• Select TO viasvia some sort of drunkards walk to a f(x) of min/mean/max neighbors
• Route paths
• group new joined traces and vias and ignore
• repeat until no vias remain. If number of vias is odd, drop the last one

Image Example Assets

Big Wave Vector PDF and some process files from a test run.