## Rorschach

### Info

A substitution rule for a tiling with prototiles based on 12-fold dihedral symmetry.
However, the tilings show only 4-fold dihedral symmetry.
In contrast to the usual suspects related to 12-fold symmetry,
like the shield tilings or the Socolar tilings,
the inflation factor of this one is not an algebraic unit.
It is still a PV number, which makes this tiling a candidate for a model set
with mixed p-adic and Euclidean window.
More about such tilings can be found in [Sin07].

### Substitution Rule

### Patch

download vectorformat Rorschach

### References

[Sin07]

Sing, B

**Beyond Pisot Substitutions**

*PhD thesis, Univ. Bielefeld*
2007,