Creating Charts in JavaFX - JavaFX 8: A Definitive Guide to Building Desktop, Mobile, and Embedded Java Clients - page 370

@Override
public void start(Stage primaryStage) {
NumberAxis xAxis = new NumberAxis();
NumberAxis yAxis = new NumberAxis();
yAxis.setAutoRanging(false);
yAxis.setLowerBound(0);
yAxis.setUpperBound(30);
xAxis.setAutoRanging(false);
xAxis.setAutoRanging(false);
xAxis.setLowerBound(20110);
xAxis.setUpperBound(20201);
xAxis.setTickUnit(10);
xAxis.setTickLabelFormatter(new StringConverter<Number>() {
@Override
public String toString(Number n) {
return String.valueOf(n.intValue() / 10);
}
@Override
public Number fromString(String s) {
return Integer.valueOf(s) * 10;
}
});
BubbleChart bubbleChart = new BubbleChart(xAxis, yAxis);
bubbleChart.setData(getChartData());
bubbleChart.setTitle("Speculations");
primaryStage.setTitle("BubbleChart example");
StackPane root = new StackPane();
root.getChildren().add(bubbleChart);
primaryStage.setScene(new Scene(root, 400, 250));
primaryStage.show();
}
private ObservableList<XYChart.Series<Integer, Double>>getChartData() {
double javaValue = 17.56;
double cValue = 17.06;
double cppValue = 8.25;
ObservableList<XYChart.Series<Integer, Double>>answer = FXCollections.observableArrayList();
Series<Integer, Double> java = new Series<>();
Series<Integer, Double> c = new Series<>();
Series<Integer, Double> cpp = new Series<>();
java.setName("java");
c.setName("C");
cpp.setName("C++");
for (int i = 20110; i < 20210; i = i + 10) {
double diff = Math.random();
java.getData().add(new XYChart.Data(i, javaValue));
javaValue = Math.max(javaValue + 4 * diff - 2, 0);
diff = Math.random();