15

2024/sketch_2024_12_15/sketch_2024_12_15.py

@@ -0,0 +1,67 @@
+# Voronoy play
+from itertools import product
+
+import py5
+from shapely import Polygon
+from scipy.spatial import Voronoi
+
+num_points = 200
+
+def setup():
+    py5.size(600, 600)
+    py5.color_mode(py5.HSB)
+    new_points()
+
+def new_points():
+    global seed_points, shapely_regions
+
+    seed_points = []
+    for i in range(2):
+        seed_points.extend((x + (i - 1) * py5.random(-10, 10),
+                            y + i * py5.random(-10, 10)) for x, y
+                           in product(range(0, py5.width + 60, 60),
+                                      range(0, py5.height+ 60, 60)))
+    shapely_regions = generate_regions(seed_points, py5.width, py5.height)
+    py5.stroke(255)
+
+def generate_regions(seed_points, w, h):
+    # add 4 points far from the visible region
+    extended_points = seed_points.copy()
+    extended_points.extend([
+         (-w/2, -h/2),
+         (w * 1.5, -h/2),
+         (w * 1.5, h * 1.5),
+         (-w/2, h * 1.5)
+         ])
+    voronoi = Voronoi(extended_points)
+    shapely_regions = []
+    for vs in voronoi.regions:
+        if vs and -1 not in vs:
+            shapely_regions.append(
+                Polygon(voronoi.vertices[index] for index in vs if index != -1)
+            )
+    return shapely_regions
+
+def draw():
+    #py5.translate(100, 100)
+    #py5.scale(400 / 600)
+    for p in shapely_regions:
+        #py5.no_stroke()
+        #print(p.area)
+        #py5.fill(py5.remap(p.area, 250, 2500, 0, 255), 200, 200)
+        py5.fill(16 * len(p.exterior.coords), 200, 200)
+        py5.shape(py5.convert_cached_shape(p))
+    if py5.is_key_pressed:
+        py5.fill(255)
+        py5.no_stroke()
+        for x, y in seed_points:
+            py5.circle(x, y, 4)
+
+def key_pressed():
+    if py5.key == ' ':
+        new_points()
+    elif py5.key == 's':
+        py5.save_frame('out###.png')
+
+
+py5.run_sketch(block=False)

docs/README.md

@@ -30,6 +30,16 @@ Here are listed some of the tools I have been using more recently:
 2024 \| [<b>2023</b>](2023.md) \| [<b>2022</b>](2022.md) \| [<b>2021</b>](2021.md) \| [<b>2020</b>](2020.md) \| [<b>2019</b>](2019.md) \| [<b>2018</b>](2018.md)
 
 
+---
+
+### sketch_2024_12_15
+
+![sketch_2024_12_15](https://raw.githubusercontent.com/villares/sketch-a-day/main/2024/sketch_2024_12_15/sketch_2024_12_15.png)
+
+[sketch_2024_12_15](https://github.com/villares/sketch-a-day/tree/main/2024/sketch_2024_12_15) [[py5](https://py5coding.org/)]
+
+
+
 ---
 
 ### sketch_2024_12_14