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authorSimon Tatham <anakin@pobox.com>2023-04-10 14:56:34 +0100
committerSimon Tatham <anakin@pobox.com>2023-04-10 14:59:05 +0100
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Reference my just-published article about aperiodic tilings.
In commit 8d6647548f7d005 I added the Hats grid type to Loopy, and mentioned in the commit message that I was very pleased with the algorithm I came up with. In fact, I was so pleased with it that I've decided it deserves a proper public writeup. So I've spent the Easter weekend producing one: https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/aperiodic-tilings/ In this commit I adjust the header comments in both penrose.c and hat.c to refer to the article (replacing a previous comment in penrose.c to a much less polished page containing a copy of my jotting-grade personal notes that I sent James Harvey once). Also, added some code to hatgen.c to output Python hat descriptions in a similar style to hat-test, which I used to generate a couple of the more difficult diagrams in the new article, and didn't want to lose.
Diffstat (limited to 'penrose.c')
-rw-r--r--penrose.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/penrose.c b/penrose.c
index 4d2a740..1c45ddb 100644
--- a/penrose.c
+++ b/penrose.c
@@ -2,9 +2,10 @@
*
* Penrose tile generator.
*
- * Uses half-tile technique outlined on:
+ * Works by choosing a small patch from a recursively expanded large
+ * region of tiling, using one of the two algorithms described at
*
- * http://tartarus.org/simon/20110412-penrose/penrose.xhtml
+ * https://www.chiark.greenend.org.uk/~sgtatham/quasiblog/aperiodic-tilings/
*/
#include <assert.h>