---
title: 'Trace: drawing becomes data'
part: 'Part V — Paths, Curves, and the Data Bridge'
partNumber: 5
order: 2
subtitle: 'trace, tracerings, the sandbox, and Pitfall D6'
---

_Content coming soon._

<Run>{`// trace captures a path without sewing it
let sq = trace [ repeat 4 [ fd 20 rt 90 ] ]
// Now sew it back — same result as the original square
up  setpos sq[0]  down
sewpath sq`}</Run>

<Checkpoint chapterId="ch-30">Chapter content coming soon.</Checkpoint>