Delaunay Triangulation
What this grid is
A Delaunay Triangulation connects a set of points into a mesh of non‑overlapping triangles. In design, it is a quick way to get a “low‑poly” look, a faceted texture, or a technical network.
This generator exports triangle edges as clean SVG line art. You can also render the sites (the input points) to tune density or create a dot‑and‑mesh style.
Key parameters
- Width / Height (px) — Output canvas size.
- Sites — Number of points used to build the triangulation (more sites → smaller triangles).
- Jitter (%) — How irregular the point distribution feels (higher jitter → less uniform mesh).
- Seed — Reproducible randomness; keep the same seed to re‑export the same mesh.
- Line Width / Opacity / Line Color — Stroke styling for triangle edges.
- Show Sites / Site Size / Site Opacity / Site Color — Optional point rendering.
Unique highlights
- Clean geometry: edges do not cross and triangles fill the hull of the sites.
- Strong “structure signal” even at low opacity.
- Easy variation: Sites + Jitter + Seed produce many distinct meshes.
Typical use cases
- Background texture behind typography, icons, or UI.
- Low‑poly poster frames and geometric gradients (color triangles in another tool).
- Technical diagrams: networks, sensor layouts, triangulated surfaces.
- Motion design: export multiple seeds and cross‑fade between meshes.
Tips
- For subtle texture, try 10–25% opacity and a thin stroke.
- If triangles feel too large, increase Sites before increasing line width.
- Enable Show Sites while tuning density, then turn it off for final export.
- Pair with a Voronoi pattern (its dual) for a “cells + mesh” design system.
FAQ
Is this the same as a Voronoi diagram?
They are closely related: Delaunay connects points into triangles; Voronoi partitions space into cells around the same points.
Why do I see very long outer triangles?
Near the edges triangles can stretch; increase Sites or reduce Jitter to make the boundary feel more even.
How do I get a cleaner, more uniform mesh?
Lower Jitter, keep Sites high enough for your target triangle size, and use a thinner stroke.
Can I edit the result?
Yes—exported SVG remains editable (recolor edges, change stroke styles, delete regions).