# Harmonograph Drawing: motion graphics style

> A virtual pendulum pen draws a dense Lissajous figure on cream paper, and wherever the line crosses the letters it turns to deep indigo ink. Victorian science toy meets pen-plotter art, for editorial and craft brands.

- Category: [Generative & Math Art](https://aimotions.art/category/generative-math-art/)
- Also known as: harmonograph, pendulum drawing, lissajous curve, hypotrochoid animation, damped oscillation, line art animation, pen plotter
- Demo built with: SVG · Energy: Calm · Background: Light bg
- Live demo: https://aimotions.art/styles/harmonograph/
- Spanish version: https://aimotions.art/es/estilos/harmonograph/

## Prompt (replace [TEXT] with your text)

```text
Draw the word [TEXT] with a harmonograph. A single continuous hairline, traced by a pen tip you can see, follows the sum of two decaying pendulum swings on each axis with frequencies close to 2:3, so it loops hundreds of times in a wide, slowly shrinking Lissajous figure that fills the frame with moiré-like density. The line is faint sepia on warm cream paper, but wherever it passes inside the letterforms of [TEXT], set in a high-contrast didone display serif, it switches to deep indigo ink, so the word fills in loop by loop. Drawing takes about five seconds with a gentle ease, then hold, fade the ink like blotted paper and start a new figure with slightly different frequencies.
```

## Visual DNA

- One continuous hairline drawn by damped pendulums, spiraling inward
- Interference-like moiré where hundreds of loops overlap
- Line switches to deep indigo ink inside the letters, faint sepia outside
- High-contrast didone lettering emerges only from the line density
- Visible pen tip, cream paper grain, a new figure every loop

The prompts are free to copy, adapt and use in personal and commercial projects, with no credit required. Republishing the collection or a substantial part of it (for example as another library or a dataset) requires written permission.

How to cite: Harmonograph Drawing, aimotions, https://aimotions.art/styles/harmonograph/