2021_01_08

2021/sketch_2021_01_08/sketch_2021_01_08.pyde

@@ -0,0 +1,49 @@
+from itertools import product
+from random import sample, choice
+from villares import arcs
+
+MARGIN = 50
+SIZE = 100
+
+def setup():
+    size(500, 500)
+    prepare()
+
+def prepare():
+    global triangulos
+    n = 12
+    grid = list(product(range(MARGIN, width - MARGIN + 1, SIZE), repeat=2))
+    pontos = sample(grid, n)
+    triangulos = [(pa, pontos[i - 1], pontos[i - 2])
+                 for i, pa in enumerate(pontos)]
+
+def subdivide():
+    global triangulos
+    novos_triangulos = []
+    for i, (pa, pb, pc) in enumerate(triangulos):
+        mid_ab = midpoint(pa, pb)
+        mid_bc = midpoint(pc, pb)
+        mid_ac = midpoint(pa, pc)
+        novos_triangulos.append((pa, mid_ab, mid_ac))
+        novos_triangulos.append((pb, mid_bc, mid_ab))
+        novos_triangulos.append((pc, mid_bc, mid_ac))
+    triangulos = novos_triangulos
+
+def midpoint(a, b):
+    return ((a[0] + b[0]) / 2,
+            (a[1] + b[1]) / 2)
+
+def draw():
+    clear()
+    for t in triangulos:
+        # fill(255, 100)
+        noFill()
+        stroke(255, 100)
+
+        arcs.arc_augmented_poly(t, [10] * 3)
+
+def keyPressed():
+    if key == "r":
+        prepare()
+    elif key == "d":
+        subdivide()

2021/sketch_2021_01_08b/sketch_2021_01_08b.pyde

@@ -0,0 +1,54 @@
+from itertools import product
+from random import sample, choice
+
+MARGIN = 50
+SIZE = 100
+
+def setup():
+    size(500, 500)
+    prepare()
+
+def prepare():
+    global triangulos
+    n = 12
+    grid = list(product(range(MARGIN, width - MARGIN + 1, SIZE), repeat=2))
+    pontos = sample(grid, n)
+    triangulos = [(pa, pontos[i - 1], pontos[i - 2])
+                 for i, pa in enumerate(pontos)]
+
+def subdivide():
+    global triangulos
+    novos_triangulos = []
+    for i, (pa, pb, pc) in enumerate(triangulos):
+        mid_ab = midpoint(pa, pb)
+        mid_bc = midpoint(pc, pb)
+        mid_ac = midpoint(pa, pc)
+        novos_triangulos.append((pa, mid_ab, mid_ac))
+        novos_triangulos.append((pb, mid_bc, mid_ab))
+        novos_triangulos.append((pc, mid_bc, mid_ac))
+    triangulos = novos_triangulos
+
+def midpoint(a, b):
+    return ((a[0] + b[0]) / 2,
+            (a[1] + b[1]) / 2)
+
+def draw():
+    clear()
+    for pa, pb, pc in triangulos:
+        # fill(255, 100)
+        noFill()
+        stroke(255, 100)
+        beginShape()
+        curveVertex(pa[0], pa[1])
+        curveVertex(pb[0], pb[1])
+        curveVertex(pc[0], pc[1])        
+        curveVertex(pa[0], pa[1])
+        curveVertex(pb[0], pb[1])
+        curveVertex(pc[0], pc[1])        
+        endShape(CLOSE)
+        
+def keyPressed():
+    if key == "r":
+        prepare()
+    elif key == "d":
+        subdivide()

README.md

@@ -26,6 +26,12 @@ Here are listed some of the tools I have been using:
 
 ---
 
+![sketch_2021_01_08b](2021/sketch_2021_01_08b/sketch_2021_01_08b.gif)
+
+[sketch_2021_01_08b](https://github.com/villares/sketch-a-day/tree/master/2021/sketch_2021_01_08b) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
 ![sketch_2021_01_07a](2021/sketch_2021_01_07a/sketch_2021_01_07a.gif)
 
 [sketch_2021_01_07a](https://github.com/villares/sketch-a-day/tree/master/2021/sketch_2021_01_07a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]