1. JavaFX Tutorial
2. JavaFX Overview
3. Your First JavaFX Application
4. JavaFX Stage
5. JavaFX Scene
6. JavaFX Node
7. JavaFX Properties
8. JavaFX FXML
9. JavaFX CSS Styling
10. JavaFX ImageView
11. JavaFX Text
12. JavaFX Fonts
13. JavaFX Hyperlink
14. JavaFX Label
15. JavaFX Button
16. JavaFX MenuButton
17. JavaFX SplitMenuButton
18. JavaFX ToggleButton
19. JavaFX RadioButton
20. JavaFX CheckBox
21. JavaFX ChoiceBox
22. JavaFX ComboBox
23. JavaFX ListView
24. JavaFX DatePicker
25. JavaFX ColorPicker
26. JavaFX TextField
27. JavaFX PasswordField
28. JavaFX Slider
29. JavaFX TextArea
30. JavaFX ToolBar
31. JavaFX Tooltip
32. JavaFX ProgressBar
33. JavaFX FileChooser
34. JavaFX DirectoryChooser
35. JavaFX Accordion
36. JavaFX TitledPane
37. JavaFX SplitPane
38. JavaFX TabPane
39. JavaFX ScrollPane
40. JavaFX Group
41. JavaFX Region
42. JavaFX Pane
43. JavaFX HBox
44. JavaFX VBox
45. JavaFX Separator
46. JavaFX FlowPane
47. JavaFX TilePane
48. JavaFX GridPane
49. JavaFX MenuBar
50. JavaFX ContexMenu
51. JavaFX WebView
52. JavaFX PieChart
53. JavaFX TableView
54. JavaFX TreeView
55. JavaFX TreeTableView
56. JavaFX HTMLEditor
57. JavaFX Pagination
58. JavaFX BarChart
59. JavaFX StackedBarChart
60. JavaFX ScatterChart
61. JavaFX LineChart
62. JavaFX AreaChart
63. JavaFX StackedAreaChart
64. JavaFX Color
65. JavaFX 2D
66. JavaFX Effects
67. JavaFX 3D
68. JavaFX Transformation
69. JavaFX Animation
70. JavaFX Media - JavaFX Video and Audio Support
71. JavaFX Canvas
72. JavaFX Drag and Drop
73. JavaFX Concurrency

• ScatterChart X Axis and Y Axis
• Creating a ScatterChart
• ScatterChart Data Series
• Adding a ScatterChart to the Scene Graph

The JavaFX ScatterChart component can draw scatter charts inside your JavaFX applications. The JavaFX ScatterChart component is represented by the class javafx.scene.chart.ScatterChart.

ScatterChart X Axis and Y Axis

A JavaFX ScatterChart draws a scatter chart. A scatter chart is a two-dimensional graph, meaning the graph has an X axis and a Y axis. You can use both categorical and numerical axes, but in this example I will just use two numerical axes for the scatter chart. A numerical axis is represented by the JavaFX class javafx.scene.chart.NumberAxis .

You need to define the X axis and Y axis used by a ScatterChart. Here is an example of creating two JavaFX NumberAxis instances:

NumberAxis xAxis = new NumberAxis();
xAxis.setLabel("No of employees");

NumberAxis yAxis = new NumberAxis();
yAxis.setLabel("Revenue per employee");

Creating a ScatterChart

You create a JavaFX ScatterChart component by creating an instance of the ScatterChart class. You need to pass an X axis and Y axis to the ScatterChart constructor. Here is a JavaFX ScatterChart instantiation example:

NumberAxis xAxis = new NumberAxis();
xAxis.setLabel("No of employees");

NumberAxis yAxis = new NumberAxis();
yAxis.setLabel("Revenue per employee");

ScatterChart scatterChart = new ScatterChart(xAxis, yAxis);

ScatterChart Data Series

To get a JavaFX ScatterChart component to display any dots, you must provide it with a data series. A data series is a list of data points. Each data point contains an X value and a Y value. Here is an example of creating a data series and adding it to a ScatterChart component:

XYChart.Series dataSeries1 = new XYChart.Series();
dataSeries1.setName("2014");

dataSeries1.getData().add(new XYChart.Data( 1, 567));
dataSeries1.getData().add(new XYChart.Data( 5, 612));
dataSeries1.getData().add(new XYChart.Data(10, 800));
dataSeries1.getData().add(new XYChart.Data(20, 780));
dataSeries1.getData().add(new XYChart.Data(40, 810));
dataSeries1.getData().add(new XYChart.Data(80, 850));

scatterChart.getData().add(dataSeries1);

First an XYChart.Series instance is created and given a name. Second, 6 XYChart.Data instances are added to the XYChart.Series object. Third, the XYChart.Series object is added to a ScatterChart object.

It is possible to add multiple data series to the ScatterChart . Just repeat the above code for additional data series.

Adding a ScatterChart to the Scene Graph

To make a ScatterChart visible you must add it to the JavaFX scene graph. This means adding the ScatterChart to a Scene object or add the ScatterChart to a layout component which is added to a Scene object.

Here is an example that adds a ScatterChart to the JavaFX scene graph:

package com.jenkov.javafx.charts;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.ScatterChart;
import javafx.scene.chart.XYChart;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class ScatterChartExperiments extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("BarChart Experiments");

        NumberAxis xAxis = new NumberAxis();
        xAxis.setLabel("No of employees");

        NumberAxis yAxis = new NumberAxis();
        yAxis.setLabel("Revenue per employee");

        ScatterChart scatterChart = new ScatterChart(xAxis, yAxis);

        XYChart.Series dataSeries1 = new XYChart.Series();
        dataSeries1.setName("2014");

        dataSeries1.getData().add(new XYChart.Data( 1, 567));
        dataSeries1.getData().add(new XYChart.Data( 5, 612));
        dataSeries1.getData().add(new XYChart.Data(10, 800));
        dataSeries1.getData().add(new XYChart.Data(20, 780));
        dataSeries1.getData().add(new XYChart.Data(40, 810));
        dataSeries1.getData().add(new XYChart.Data(80, 850));

        scatterChart.getData().add(dataSeries1);

        VBox vbox = new VBox(scatterChart);

        Scene scene = new Scene(vbox, 400, 200);

        primaryStage.setScene(scene);
        primaryStage.setHeight(300);
        primaryStage.setWidth(1200);

        primaryStage.show();
    }


    public static void main(String[] args) {
        Application.launch(args);
    }
}

The application resulting from running this application would look similar to this: