15a

2020/sketch_2020_04_15a/sketch_2020_04_15a.pyde

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+"""
+Annie Perikins @anniek_p
+"Based on traditional Japanese stitching,
+this is a riff on hitomezashi patterns."
+https://twitter.com/anniek_p/status/1244220881347502080?s=20
+"""
+
+def setup():
+    size(400, 400)
+
+def draw():
+    background(200)
+    w, h = 10, 10
+    for x in range(0, width, w):
+        dashed_line(x, 0, x, height)
+    for y in range(0, height, w):
+        dashed_line(0, y, width, y)
+    noLoop()
+
+def dashed_line(ax, ay, bx, by, steps=None):
+    # line(ax, ay, bx, by)
+    if steps is None:
+        steps = width / 10 # lenght
+    r = int(random(2))
+    lx, ly = ax, ay
+    for i in range(1, steps + 1):
+        x = lerp(ax, bx, i / float(steps))
+        y = lerp(ay, by, i / float(steps))
+        if i % 2 == r:
+        # circle(x, y, 5)
+           line(lx, ly, x, y)
+        lx, ly = x, y
+
+def keyReleased():
+    loop()
+    saveFrame("####.png")