17a

2020/sketch_2020_06_17a/sketch_2020_06_17a.pyde

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+# foto: Sandra Rocha, São Paulo, 2020
+
+mostra_img = False
+mostra_bol = True
+
+cw = 4
+hcw = cw / 2
+
+def setup():
+    global img
+    size(1000, 250)
+    img = loadImage("arquivo.jpg")
+    noStroke()
+
+def draw():
+    background(0)
+    w, h = img.width, img.height
+    p = w / h
+    if mostra_img:
+        image(img, 0, 0, width, width / p)
+    for x in range(hcw, width, cw):
+        ix = map(x, 0, width, 0, w)
+        for y in range(hcw, height, cw):
+            iy = map(y, 0, height, 0, h)
+            cor = img.get(int(ix), int(iy))
+            fill(cor)
+            if mostra_bol:
+                circle(x, y, cw)
+
+
+def keyPressed():
+    # saveFrame("sketch_2020_06_17a.png")
+    global mostra_img, mostra_bol, cw
+    if key == "i":
+        mostra_img = not mostra_img
+    if key == "o":
+        mostra_bol = not mostra_bol
+    if str(key) in '-_' and cw > 1:
+        cw -= 1
+    if str(key) in '=+':
+        cw += 1