a vertical wall plotter

hang it on your wall, watch it go

lib

the small library can output SVG or it can actually drive stepper motors

installation

pip freeze gave me way too much. there's really just this lib and pyserial if you don't already have it:

$ pip install -E /path/to/virtualenv serial
$ pip install -E /path/to/virtualenv erik

scripts

there are some scripts inside bin/ that use the plotting lib

emergent-curve

• draws some straight lines such that they eventually form a curve

blocky-spiral

• drawing a square-shaped spiral starting in the center
• a labyrinth, I suppose

plans

bezier

• De Casteljau's algorithm is an iterative routine that could be used to turn bezier curves into discrete lines

portraits

• maybe this is a shading routine
  • just draw for a while, but avoid regions of low brightness
  • gravitate towards pixels that are darker and in the neighborhood
  • maybe try to stay on a vector
  • how to simulate 'drawing for a while?'

origins

• this has been all over the internet for a while
  • see Harvey Moon's Kickstarter project for a beautiful example
• SW rebooted from https://github.com/yosemitebandit/plotplot
• more technical details on driving the steppers at that repo