Пример #1
0
  private void fillScatter(DataSeries series, int points) {
    Random random = new Random();
    for (int i = 0; i < points; i++) {
      double x = random.nextDouble() * 30 + 150;
      double y = 60;
      if (random.nextBoolean()) {
        y += random.nextDouble() * 15;
        if (random.nextBoolean() && x > 170) {
          y += random.nextDouble() * 30;
        }
      } else {
        y -= random.nextDouble() * 20;
      }
      x = Math.floor(x * 10) / 10;
      y = Math.floor(y * 10) / 10;

      int colorNumber = (int) Math.floor((x - 150) / 30 * 255);

      Color color = new SolidColor(colorNumber, 0, 255 - colorNumber);
      DataSeriesItem item = new DataSeriesItem(x, y);
      // item.setColor(color);
      series.add(item);
    }
  }