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2019/sketch_190424b/sketch_190424b.pyde

@@ -0,0 +1,51 @@
+from __future__ import division
+order = 9
+
+def setup():
+    size(700, 700)
+    noFill()# fill(0)
+    textAlign(CENTER, CENTER)
+    rectMode(CENTER)
+    strokeWeight(2)
+
+def draw():
+    s = width / order
+    i = 0
+    for x in range(order):
+        for y in range(order):
+            with pushMatrix():
+                translate(s / 2 + x * s, s/ 2 + y * s)
+                #text(trit(i, pad=4), 0, 0)
+                draw_trit(trit(i, pad=4))
+            i += 1        
+
+def draw_trit(trit):
+    r = 8
+    for t in trit:
+        tn = int(t)
+        if tn == 0:
+            rect(0, 0, r, r)
+        elif tn == 1:
+            rect(0, 0, r/2, r*2)
+        else:
+            rect(0, 0, r*2, r/2)
+        r += 8
+    
+def to_base(num, base):
+    # inverse of int(str, base)
+    BS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+    result = ""
+    while num:
+        result += BS[num % base]
+        num //= base
+    return result[::-1] or "0"
+
+def trit(n, pad):
+    s = to_base(n, 3)
+    while len(s) < pad:
+        s = "0" + s
+    return s
+
+
+def keyPressed():
+    saveFrame("###.png")