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storborg/parallel-threading.py

Created January 17, 2015 06:38
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parallel-threading.py
from pyweaving import Draft
from pyweaving.render import ImageRenderer
# 1-indexed
threading = [
4, 3,
6, 5,
8, 7,
1, 2, 3, 4, 5, 6, 7, 8,
2, 1,
7, 8,
5, 6,
3, 4,
1, 2,
8, 7, 6, 5, 4, 3,
6, 5,
8, 7,
1, 2, 3, 4, 5, 6, 7, 8,
2, 1,
4, 3, 2, 1,
7, 8,
5, 6,
3, 4,
1, 2,
8, 7, 6, 5,
8, 7,
1, 2, 3, 4, 5, 6, 7, 8,
2, 1,
4, 3,
6, 5, 4, 3, 2, 1,
7, 8,
5, 6,
3, 4,
1, 2,
8, 7,
1, 2, 3, 4, 5, 6, 7, 8,
2, 1,
4, 3,
6, 5,
8, 7, 6, 5, 4, 3, 2, 1,
7, 8,
5, 6,
3, 4,
1, 2, 3, 4, 5, 6, 7, 8,
2, 1,
4, 3,
6, 5,
8, 7,
1, 2,
8, 7, 6, 5, 4, 3, 2, 1,
7, 8,
5, 6,
3, 4, 5, 6, 7, 8,
2, 1,
4, 3,
6, 5,
8, 7,
1, 2, 3, 4,
1, 2,
8, 7, 6, 5, 4, 3, 2, 1,
7, 8,
5, 6, 7, 8,
2, 1,
4, 3,
6, 5,
8, 7,
1, 2, 3, 4, 5, 6,
3, 4,
1, 2,
8, 7, 6, 5, 4, 3, 2, 1,
7, 8,
2, 1,
4, 3,
6, 5,
8, 7,
1, 2, 3, 4, 5, 6, 7, 8,
5, 6,
3, 4,
1, 2,
8, 7, 6, 5, 4, 3, 2, 1,
]
# list of threads --> treadles, both are 1-indexed
tieup = [
(1, 5, 7, 8),
(1, 3, 4, 5),
(1, 2, 6, 8),
(2, 4, 5, 6),
(1, 2, 3, 7),
(3, 5, 6, 7),
(2, 3, 4, 8),
(4, 6, 7, 8),
]
# offset, count
plan = [
(0, 4),
(0, 5),
(1, 4),
(1, 5),
(2, 4),
(2, 5),
(3, 4),
(3, 5),
(4, 4),
(4, 5),
(5, 4),
(5, 5),
(6, 5),
(7, 4),
(7, 4),
(7, 4),
(7, 3),
(6, 4),
(6, 3),
(5, 4),
(5, 3),
(4, 4),
(4, 3),
(3, 4),
(3, 3),
(2, 4),
(2, 3),
(1, 4),
(1, 4),
(1, 3),
(0, 4),
]
# 1-indexed
treadling = []
for __ in range(3):
for offset, run in plan:
for ii in range(run):
treadling.append((offset + ii + 1) % 8)
draft = Draft(num_shafts=8, num_treadles=8)
for ii, shaft_no in enumerate(threading):
if ii % 2 == 0:
# amethyst
color = (75, 0, 188)
else:
# dark teal
# color = (0, 108, 120)
color = (255, 255, 255)
draft.add_warp_thread(color=color, shaft=shaft_no - 1)
for ii, treadle_nos in enumerate(tieup):
shaft = draft.shafts[ii]
for treadle_no in treadle_nos:
draft.treadles[treadle_no - 1].shafts.add(shaft)
for ii, treadle_no in enumerate(treadling):
draft.add_weft_thread(color=(0, 0, 0), treadles=[treadle_no - 1])
ImageRenderer(draft,
liftplan=True).save('parallel-threading-networked-twill.png')
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