initial version

pattern.scad

@@ -0,0 +1,19 @@
+module spray_pattern(bounding_box, move_patterns) {
+  size = bounding_box[1] - bounding_box[0];
+  xn = floor(size.x / move_patterns[0].x);
+  yn = floor(size.y / move_patterns[1].y);
+  origin = bounding_box[0];
+
+  for (y = [0:1:yn]) {
+    for (x = [0:1:xn]) {
+      move = [x, y] * move_patterns;
+      complement = [
+        move.x >= 0 && move.x <= size.x ? 0 : -(xn + 1) * floor(move.x / ((xn + 1) * move_patterns[0].x)),
+        move.y >= 0 && move.y <= size.y ? 0 : -(xn + 1) * floor(move.y / ((xn + 1) * move_patterns[0].y))
+      ];
+      adjusted_move = origin + ([x, y] + complement) * move_patterns;
+      translate(adjusted_move)
+        children();
+    }
+  }
+}