kopia lustrzana https://github.com/villares/sketch-a-day
107 wiersze
3.0 KiB
Python
107 wiersze
3.0 KiB
Python
# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
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# More explorations of lines in grids
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from random import shuffle
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from itertools import product, combinations, permutations, combinations_with_replacement
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from gif_exporter import gif_export
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add_library('GifAnimation')
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space, border = 16, 20
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position = 0 # initial position
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def setup():
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global tri_combos, W, H, position, num
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size(1240, 648)
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frameRate(1)
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rectMode(CENTER)
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blendMode(MULTIPLY)
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strokeJoin(ROUND)
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grid = product(range(-1, 2), repeat=2) # 3X3
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# all line permutations on a grid
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points = list(combinations(grid, 3))
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# allow only some lines
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triangles = []
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for p in points:
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n0 = PVector(*p[0])
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n1 = PVector(*p[1])
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n2 = PVector(*p[2])
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if (n1.x * (n2.y - n0.y) +
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n2.x * (n0.y - n1.y) +
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n0.x * (n1.y - n2.y) != 0):
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triangles.append(p)
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num_possible_triangles = len(triangles)
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println("Number of possible triangles: {}".format(num_possible_triangles))
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# main stuff
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tri_combos = list(combinations(triangles, 2))
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# shuffle(tri_combos) # ucomment to shuffle!
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num = len(tri_combos)
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println("Number of combinatrions: {}".format(num))
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W = (width - border * 2) // space
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H = (height - border * 2) // space
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println("Cols: {} Rows: {} Visible grid: {}".format(W, H, W * H))
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def draw():
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global position
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background(240)
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i = position
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for y in range(H):
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for x in range(W):
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if i < len(tri_combos):
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pushMatrix()
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translate(border / 2 + space + space * x,
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border / 2 + space + space * y)
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# translate(border + space + space * x,
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# border + space + space * y)
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draw_combo(i)
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popMatrix()
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i += 1
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if i < len(tri_combos):
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# gif_export(GifMaker, SKETCH_NAME)
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position += H * W
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# else:
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# gif_export(GifMaker, finish=True)
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def draw_combo(n):
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colorMode(RGB)
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siz = space / 2
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for i, sl in enumerate(tri_combos[n]):
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colorMode(HSB)
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fill(i * 128, 128, 128)
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(x0, y0), (x1, y1), (x2, y2) = sl[0], sl[1], sl[2]
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# noStroke()
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poly(((x0 * siz, y0 * siz),
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(x1 * siz, y1 * siz),
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(x2 * siz, y2 * siz)))
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def keyPressed():
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global W, H
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if key == "s":
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saveFrame("####.png")
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def poly(p_list, closed=True):
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beginShape()
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for p in p_list:
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if len(p) == 2 or p[2] == 0:
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vertex(p[0], p[1])
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else:
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vertex(*p)
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if closed:
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endShape(CLOSE)
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else:
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endShape()
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def settings():
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from os import path
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global SKETCH_NAME
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SKETCH_NAME = path.basename(sketchPath())
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OUTPUT = ".png"
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println(
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"""
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[{0}](https://github.com/villares/sketch-a-day/tree/master/{2}/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
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""".format(SKETCH_NAME, OUTPUT, year())
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)
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