Guilloché Rosette

What this grid is

A Guilloché rosette is a decorative line pattern made from repeating spirograph‑like curves. You have seen this style on banknotes, certificates, passports, and luxury packaging. It reads as precise, crafted, and “security‑style” even when used purely for aesthetics.

This generator produces a centered rosette line drawing. The curve is driven by small integer ratios (think “gears”), then duplicated by rotation to create symmetry.

Key parameters

• Radius (px) — Overall size of the rosette.
• Outer Gear (p) / Inner Gear (q) — Frequency ratios; different pairs change lobes and repeat cycles.
• Pen Offset (× inner radius) — Controls how tight or wide the loops are.
• Copies — Number of rotated copies stacked for symmetry.
• Rotation (deg) — Global rotation for alignment.
• Samples — Curve smoothness (higher samples → smoother but heavier SVG).
• Line Width / Opacity / Line Color — Final stroke appearance.

Unique highlights

• High visual value from a few numbers.
• Symmetry on demand: Copies + Rotation quickly form a badge or seal.
• Brand‑friendly: small ratio tweaks create a distinct “signature” motif.

Typical use cases

• Emblems, seals, medallions, and stamp‑style frames.
• Subtle background texture for certificates and premium product pages.
• Security‑style decorative overlays (use low opacity).
• Centerpiece for dot grids, polar grids, or compass‑style layouts.

Tips

• Start with small integers for p/q, then explore nearby pairs.
• If the curve looks angular, increase Samples; if the SVG is heavy, reduce Samples and slightly increase stroke width.
• For background use, try 10–20% opacity; for a bold emblem, keep 60–100%.
• If crossings feel too dense, reduce Pen Offset or reduce Copies.

FAQ