Seventeen
Draw one motif and tile the plane in all 17 wallpaper groups.
How it's built
- All 17 groups from one table of integer lattice matrices
- One WebGL2 shader repeats a single cell texture, with a Canvas2D twin
- Public pattern gallery with on-device thumbnails
- Daily Symmetry Spotter scored and timed by the server
- Escher tiles with a coverage proof after every edit
A pattern studio built on the 17 wallpaper symmetry groups: draw one curve and see every mirror, glide and turn print it across the cloth. Share links, a gallery on Pages Functions and D1, a daily Symmetry Spotter with a server-verified leaderboard, and an Escher editor whose bent tile edges always interlock.