- Brother SE 1800
- Pes format explained
- embroidermodder, libembroider
- most brands of embroidery machine accept dst format.

- https://github.com/Embroidermodder/Embroidermodder / libembroidery
- gradients http://www.textileartsnow.com/2015/04/black-white-sewing-machine-stitching.html

** projects
- gradients etc:
  - [X] additive blending
  - [X] comic book dots http://www.newdesignfile.com/post_comic-book-dot-pattern-vector_86579/
  - [ ] moire blending (CBMM)
  - [ ] squiggle blending
  - [ ] contour plots
- imaginary contours
  - [ ] tilted lines define a square
- typography
  - [ ] equations
  - [ ] letterforms
- cartoons
  - [ ] pkmn

** code

#+BEGIN_SRC 
    var ret = []


    while( n != 0 ) {
	var exponent = 0
	var sign = (n > 0) ? 1 : -1
	n = Math.abs(n)
	while( Math.pow(3, exponent) < n ) {
	    exponent += 1
	}
	console.log(n, sign, exponent)
	ret.push(sign * exponent)
	n -= Math.pow(3, exponent)
    }
    return ret
    
    if(n == 0) {
	return []
    }
    else {
	var exponent = 0
	while( Math.pow(3, exponent) < n ) {
	    exponent += 1
	}

	
	if( Math.pow(3, exponent) == n ) {
	    return [exponent]
	}
	return [exponent]
	
	
    }

#+END_SRC