18

2025/sketch_2025_10_18/sketch_2025_10_18.py

@@ -0,0 +1,36 @@
+# exploring some of Jim's ideas for the Python Brasil tutorial
+
+import numpy as np
+from shapely import unary_union, make_valid
+from shapely.geometry import MultiPolygon, Polygon, Point
+import py5
+
+def setup():
+    global max_area
+    py5.size(500, 500)
+    py5.color_mode(py5.CMAP, 'viridis_r', 255)
+    py5.no_stroke()
+    generate()
+    
+def generate():
+    global result    
+    shapes = Polygon([(py5.random_int(-5, 5) * 40, py5.random_int(-5, 5) * 40)
+                      for _ in range(40)])
+    all_shapes = make_valid(shapes).buffer(-2)
+    result = all_shapes.buffer(2).difference(all_shapes.buffer(-4))
+    if isinstance(result, Polygon):
+        result = MultiPolygon([result])
+    
+def draw():
+    py5.background('black')
+    max_area = max(shp.area for shp in result.geoms)
+    py5.translate(250, 250)
+    for shp in result.geoms:
+        py5.fill(shp.area / max_area * 255)
+        py5.shape(shp) 
+
+def key_pressed():
+    py5.save_frame('####.png')
+    generate()
+
+py5.run_sketch(block=False)

docs/README.md

@@ -26,6 +26,16 @@ If you appreciate what I have been doing, you may also support my artistic work,
 <!-- SKETCHES_START -->
 
 
+---
+
+### sketch_2025_10_18
+
+![sketch_2025_10_18](https://raw.githubusercontent.com/villares/sketch-a-day/main/2025/sketch_2025_10_18/sketch_2025_10_18.gif)
+
+[sketch_2025_10_18](https://github.com/villares/sketch-a-day/tree/main/2025/sketch_2025_10_18) [[py5](https://py5coding.org/)]
+
+
+
 ---
 
 ### sketch_2025_10_17