sketch-a-day/2019/sketch_190709a/sketch_190709a.pyde

108 wiersze
3.1 KiB
Python

# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
"""
- Number of possible bars on a 2x2 grid: 12
- Number of 2-bar combinations: 66
- Cols: 11 Rows: 6
- Interpolating 6 intermediary bars (total of 8 bars drawn)
- Overlapping slightly the combinations
"""
from random import shuffle
from itertools import product, combinations, permutations
from var_bar import var_bar
space, border = 80, 80
init_position = 0
def setup():
global bar_combos, W, H, position, num
size(960, 560)
blendMode(MULTIPLY)
rectMode(CENTER)
grid = product(range(-1, 1), repeat=2) # 2X2 grid
# all bar possibilities on a grid (they have a direction)
bars = permutations(grid, 2)
# allow only some bars
possible_bars = []
for l in bars: # filter not applicable on this sketch
# (x0, y0), (x1, y1) = l[0], l[1]
# if dist(x0, y0, x1, y1) < 2: # rule defined here...
possible_bars.append(l)
num_possible_bars = len(possible_bars)
println("Number of possible bars on a 2x2 grid: {}".format(num_possible_bars))
# main stuff
n_bars = 2
bar_combos = list(combinations(possible_bars, n_bars))
# shuffle(bar_combos) # ucomment to shuffle!
num = len(bar_combos)
println("Number of {}-bar combinations: {}".format(n_bars, num))
W = (width - border) // space
H = (height - border) // space
println("Cols: {} Rows: {} Visible grid: {}".format(W, H, W * H))
def draw():
global radius_a, radius_b, init_position
ang = frameCount / 15.5
t = sin(ang)
radius_a = space / map(t, -1, 1, 4, 32)
radius_b = space / map(t, -1, 1, 32, 4)
background(240)
i = init_position
for y in range(H):
for x in range(W):
if i < len(bar_combos):
pushMatrix()
translate(border + space / 2 + space * x,
border + space / 2 + space * y)
draw_combo(i)
popMatrix()
i += 1
if i < len(bar_combos):
init_position += H * W
if ang < TWO_PI:
saveFrame("s####.png")
else:
exit()
def draw_combo(n):
noFill()
stroke(0, 0, 100, 200)
# noStroke()
fill(200)
siz = space #/ 2. # B option
first_line = bar_combos[n][0]
next_line = bar_combos[n][1]
jn = 8
for j in range(8):
(x0, y0), (x1, y1) = lerp_poly(first_line, next_line, j / (jn - 1.))
var_bar(x0 * siz, y0 * siz, x1 * siz, y1 * siz,
radius_a, radius_b)
def keyPressed():
global W, H
if key == "s":
saveFrame("####.png")
def lerp_poly(p0, p1, t):
pts = []
for sp0, sp1 in zip(p0, p1):
pts.append((lerp(sp0[0], sp1[0], t),
lerp(sp0[1], sp1[1], t)))
return pts
def settings():
from os import path
global SKETCH_NAME
SKETCH_NAME = path.basename(sketchPath())
OUTPUT = ".png"
println(
"""
![{0}]({2}/{0}/{0}{1})
[{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)]
""".format(SKETCH_NAME, OUTPUT, year())
)