simon-git: tilings (main): Simon Tatham

[Commits to Tartarus hosted VCS]

TL;DR:
  0dc3317 Three more variant systems for the hat tiling.

Repository:     https://git.tartarus.org/simon/tilings.git
On the web:     https://git.tartarus.org/?p=simon/tilings.git
Branch updated: main
Committer:      Simon Tatham <anakin at pobox.com>
Date:           2025-11-21 10:11:57

commit 0dc331755e3c089f1d6a39f56b273b145d6536ed
web diff https://git.tartarus.org/?p=simon/tilings.git;a=commitdiff;h=0dc331755e3c089f1d6a39f56b273b145d6536ed;hp=407dc0fc0e7b22d5070c7a15847a53b94e7f3c87
Author: Simon Tatham <anakin at pobox.com>
Date:   Fri Nov 21 10:07:23 2025 +0000

    Three more variant systems for the hat tiling.
    
    hat8.tl is a manual transcription of the refined version of
    hats-h7h8.tl, with 7 clones of the single-hat metatile. To my way of
    thinking this has now superseded hat10.tl as the nicest substitution
    system for the hat tiling, barring applications where correspondence
    to the HTPF system is helpful.
    
    hat8-with-kites.tl and hats-hhtpfff-with-kites.tl are variants of that
    and the HHTPFFF system - so that both admit transducers - but as well
    as the substitution layers for metatiles and hats, they add a base
    layer of kites at the bottom, so that you can use them in purely
    discrete code to plot hat or turtle tilings on the underlying kite
    tiling by simply assigning each kite a coordinate string.

 hat8-with-kites.tl         | 249 ++++++++++++++++++++++++++++++++
 hat8.tl                    | 196 +++++++++++++++++++++++++
 hats-hhtpfff-with-kites.tl | 345 +++++++++++++++++++++++++++++++++++++++++++++
 toplevel.sage              |   3 +
 4 files changed, 793 insertions(+)