import redis.clients.jedis.Jedis; import java.util.ArrayList; ArrayList points = new ArrayList(); int rgb2int(int[] rgb) { return color(rgb[0], rgb[1], rgb[2]); } void setup() { size(640, 360); } void draw() { background(51); stroke(255); strokeWeight(2); // adjust the thickness of the circle outline if (mousePressed) { PVector p = new PVector(mouseX, mouseY); points.add(p); noFill(); // disable filling ellipse(p.x, p.y, 10, 10); // draw a circle with lines at the point } if (points.size() > 0) { String pointList = "["; for (int i = 0; i < points.size(); i++) { PVector p = points.get(i); int[] rgb = {255, 255, 255}; pointList += "(" + p.x + "," + p.y + "," + rgb2int(rgb) + "),"; } pointList = pointList.substring(0, pointList.length() - 1); // remove the last comma pointList += "]"; System.out.println(pointList); Jedis jedis = new Jedis("localhost"); jedis.set("/pl/0/0", pointList); jedis.close(); } }