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Draw tilings of simple polygons with dominoes, in particular the maximal height tilings as defined by William P. Thurston in his paper "Conway's Tiling Groups".
Side lengths are given starting from the bottom left corner and proceeding clockwise. Negative numbers indicate left (counterclockwise) turns. The bottom left cell is colored white.
Brief description of algorithm: The region is colored black and white as on a chessboard. Define the direction of edges on the lattice as being clockwise around white cells. Define a height function such that for an edge (u,v) we have h(v) = h(u) + 1 if the edge lies on the boundary of a domino, otherwise h(v) = h(u) - 3. Arbitrarily assign a height to a vertex on the boundary, which determines all other boundary heights. Then for each height k starting with the lowest and working up, for all edges (u,v) such that v is unlabelled and h(u) = k, set h(v) = k + 1, until all vertices are labelled.
-- mitchs
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4 8 4 8 1 6 1 6 8 8 8 8 1 2 1 2 2 1 2 1 2 8 2 8 6 2 6 2 4 3 4 3 4 7 4 7 1 -1 1 -1 1 -1 1 -1 2 1 -1 1 -1 1 -1 1 -1 2 1 -1 1 -1 1 -1 1 -1 2 1 -1 1 -1 1 -1 1 -1 2 1 1 -2 -1 3 2 2 -2 -2 2 2 -2 -5 1 5 -2 -5 3 1 2 -1 -2 1 2 -3 10 -3 2 1 -2 7 8 8 6 2 -1 6 8 8 7 1 7 -7 -6 -5 -4 -3 -2 -1 -1 1 2 3 4 5 6 7 8 9 8 9 8 7 6 5 4 3 2 1 1 -1 -2 -3 -4 -5 -6 -7 -7 1 8
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Rank | User | Size | Time | Date | Statistics |
---|---|---|---|---|---|
1 | tails | 435 | 0.7643 | 2015/05/28 18:13:12 | 0B / 142B / 286B |
Rank | User | Size | Time | Date | Statistics |
---|---|---|---|---|---|
1 | mitchs | 554 | 1.9220 | 2016/02/01 09:04:15 | 0B / 249B / 277B |
2 | rolf | 1155 | 0.3196 | 2015/05/27 03:26:28 | 0B / 514B / 435B |
Rank | Lang | User | Size | Score |
---|---|---|---|---|
1 | Perl | tails | 435 | 10000 |
2 | Python | mitchs | 554 | 7851 |