private XYDataset createDataset(final List<Coordinates>... lists) {
final XYSeriesCollection dataset = new XYSeriesCollection();
int i = 0;
for (final List<Coordinates> list : lists) {
final XYSeries xySeries = new XYSeries(i);
for (final Coordinates coordinates : list) {
xySeries.add(coordinates.getFirst(), coordinates.getSecond());
}
dataset.addSeries(xySeries);
i++;
}
return dataset;
}
