voronoi for rosettacode.org

2020/sketch_2020_10_20voronoi/sketch_2020_10_20voronoi.pyde

@@ -0,0 +1,24 @@
+
+def setup():
+    size(500, 500)
+    generate_voronoi_diagram(width, height, 25)
+    saveFrame("VoronoiDiagram.png")
+
+def generate_voronoi_diagram(w, h, num_cells):
+    nx, ny, nr, ng, nb = [], [], [], [], [] 
+    for i in range(num_cells):
+        nx.append(int(random(w)))
+        ny.append(int(random(h)))
+        nr.append(int(random(256)))
+        ng.append(int(random(256)))
+        nb.append(int(random(256)))
+    for y in range(h):
+        for x in range(w):
+            dmin = dist(0, 0, w - 1, h - 1)
+            j = -1
+            for i in range(num_cells):
+                d = dist(0, 0, nx[i] - x, ny[i] - y)
+                if d < dmin:
+                    dmin = d
+                    j = i
+            set(x, y, color(nr[j], ng[j], nb[j]))

2020/sketch_2020_10_20voronoiJava/sketch_2020_10_20voronoiJava.pde

@@ -0,0 +1,35 @@
+
+void setup() {
+  size(500, 500);
+  generateVoronoiDiagram(width, height, 25);
+  saveFrame("VoronoiDiagram.png");
+}
+
+void generateVoronoiDiagram(int w, int h, int num_cells) {
+  int nx[] = new int[num_cells];
+  int ny[] = new int[num_cells];
+  int nr[] = new int[num_cells];
+  int ng[] = new int[num_cells];
+  int nb[] = new int[num_cells];
+  for (int n=0; n < num_cells; n++) {
+    nx[n]=int(random(w));
+    ny[n]=int(random(h));
+    nr[n]=int(random(256));
+    ng[n]=int(random(256));
+    nb[n]=int(random(256));
+    for (int y = 0; y < h; y++) {
+      for (int x = 0; x < w; x++) {
+        float dmin = dist(0, 0, w - 1, h - 1);
+        int j = -1;
+        for (int i=0; i < num_cells; i++) {
+          float d = dist(0, 0, nx[i] - x, ny[i] - y);
+          if (d < dmin) {
+            dmin = d;
+            j = i;
+          }
+        }
+        set(x, y, color(nr[j], ng[j], nb[j]));
+      }
+    }
+  }
+}

README.md

@@ -26,6 +26,12 @@ Here are listed some of the tools I have been using:
 
 ---
 
+![sketch_2020_10_20voronoi](2020/sketch_2020_10_20voronoi/sketch_2020_10_20voronoi.png)
+
+[sketch_2020_10_20voronoi](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_10_20voronoi) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+
+---
+
 ![sketch_2020_10_19a](2020/sketch_2020_10_19a/sketch_2020_10_19a.gif)
 
 [sketch_2020_10_19a](https://github.com/villares/sketch-a-day/tree/master/2020/sketch_2020_10_19a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]