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2019/sketch_190731a/sketch_190731a.pyde

@@ -0,0 +1,69 @@
+"""Grid study"""
+
+from random import choice
+
+def setup():
+    size(500, 500)
+    rectMode(CENTER)
+    colorMode(HSB)
+    strokeJoin(ROUND)
+    strokeWeight(2)
+    create_grids()
+
+def create_grids():
+    global shapes
+    shapes = []    
+    for i in range(10):
+        d = int(random(4, 11))
+        sp = 20
+        x = int(random(-7, 8)) * sp
+        y = int(random(-7, 8)) * sp
+        si = random(15, 35)
+        sh = choice((ELLIPSE, ELLIPSE, RECT, RECT, TRIANGLE, TRIANGLES))
+        shapes.extend(grid(pos=(x, y),
+                           dims=(d, d),
+                           space=sp,
+                           elem=(create_element, sh, si))
+                      )
+def draw():
+    background(240)
+    translate(width / 2., height / 2.)
+    
+    for s in shapes:
+        shape(s)
+
+def grid(pos, dims, space, elem):
+    gx, gy = pos
+    col_num, row_num = dims
+    func, args = elem[0], elem[1:]
+    result = []
+    half_w = col_num * space / 2.
+    half_h = row_num * space / 2.
+    for ix in range(col_num):
+        x = gx + ix * space + space / 2. - half_w
+        for iy in range(row_num):
+            y = gy + iy * space + space / 2. - half_h
+            noFill()
+            stroke(color_rule(ix, iy, row_num))
+            result.append(func(x, y, *args))
+    return result
+
+def color_rule(ix, iy, row_num):
+    return color(row_num * 24 - (ix + iy) % 3 * 32 , 255, 100)
+
+
+def create_element(x, y, *args):
+    sh = args[0] # shape
+    si = args[1] # size
+    if args[0] in (RECT, ELLIPSE):
+        return createShape(sh, x, y, si, si)
+    elif sh == TRIANGLE:
+        return createShape(TRIANGLE, x, y, x + si, y, x, y + si)
+    elif sh == TRIANGLES:
+        return createShape(TRIANGLE, x, y, x - si, y, x, y - si)
+
+def keyPressed():
+    if key == "s":
+        saveFrame("####.png")
+    if key == " ":
+        create_grids()

README.md

@@ -18,6 +18,13 @@ You may also support my artistic work, open teaching resources and research with
 
 ## 2019
 
+---
+
+![sketch_190731a](2019/sketch_190731a/sketch_190731a.gif)
+
+[sketch_190731a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190731a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+
 ---
 
 ![sketch_190730a](2019/sketch_190730a/sketch_190730a.gif)