Seigaiha Japanese Wave Pattern
The traditional Japanese seigaiha (blue ocean wave) motif — overlapping concentric arcs on a hexagonal grid, drawn as a single repeating vector element.
About this pattern
Seigaiha (青海波, "blue ocean waves") is one of the oldest repeating motifs in Japanese design, built from fans of concentric arcs that overlap like calm sea swells. This preset reproduces it with a single custom arc-fan element tiled on a hexagonal grid, so the whole sea is driven by a handful of parameters.
Unlike a static clipart tile, every part of this pattern stays live: widen the spacing and the waves separate into individual fans; tighten it and the arcs compress into a dense, ripple-like texture. Swap the arc count inside the custom shape and you change the "line weight" of the entire ocean at once.
The motif works beautifully as a cut pattern — the arcs stay connected to the surrounding material, so a laser-cut panel holds together structurally while casting layered wave shadows. It is equally at home as a printed background or an embossed CAD surface via STEP export.
Pattern parameters
| Array type | Hexagonal grid |
| Element shape | Custom concentric-arc fan |
| Spacing (X / Y) | 35 mm / 35 mm |
| Size gradient | None (uniform tiling) |
| Canvas | 500 × 500 mm |
Every value above is a live parameter — nothing is baked. Typical uses: Japanese-style room dividers, restaurant interiors, packaging backgrounds, textile prints, wall panels.
How to use this template
- Open the free Ventilation Hole Pattern Generator — it runs in the browser, no install or sign-up.
- Rebuild the look with the parameters listed above, or open Marketplace inside the app and import preset #016 directly (Pro).
- Make it yours — adjust spacing, size, gradients, or swap the element shape — then export as SVG, DXF, or STEP for print, laser cutting, or CAD.
Start designing with this pattern
Free to use, no sign-up, runs in your browser. Every parameter stays editable.
Open the Ventilation Hole Pattern Generator — Free
