CREASE PATTERNS

var cp = new CreasePattern().birdBase()

Paper

Load crease patterns from a file and it will attempt to interpret mountain valley assignment

var cp = new CreasePattern().loadSVG("crane.svg")

Creases are planar graph edges with more properties.

CreaseDirection{
 mark,
 border,
 mountain,
 valley
}

This generative twist is flat-foldable