JavaFX Tutorial - JavaFX ScatterChart
A scatter chart is a two-axis chart that presents its data as a set of points. Each point is defined by an X and Y value.
import javafx.application.Application; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.scene.Scene; import javafx.scene.chart.CategoryAxis; import javafx.scene.chart.NumberAxis; import javafx.scene.chart.ScatterChart; import javafx.scene.chart.XYChart; import javafx.scene.chart.XYChart.Series; import javafx.scene.layout.StackPane; import javafx.stage.Stage; /* w w w .jav a2 s . co m*/ public class Main extends Application { public static void main(String[] args) { launch(args); } @Override public void start(Stage primaryStage) { CategoryAxis xAxis = new CategoryAxis(); NumberAxis yAxis = new NumberAxis(); ScatterChart scatterChart = new ScatterChart(xAxis, yAxis); scatterChart.setData(getChartData()); scatterChart.setTitle("speculations"); primaryStage.setTitle("ScatteredChart example"); StackPane root = new StackPane(); root.getChildren().add(scatterChart); primaryStage.setScene(new Scene(root, 400, 250)); primaryStage.show(); } private ObservableList<XYChart.Series<String, Double>> getChartData() { double aValue = 1.56; double cValue = 1.06; ObservableList<XYChart.Series<String, Double>> answer = FXCollections.observableArrayList(); Series<String, Double> aSeries = new Series<String, Double>(); Series<String, Double> cSeries = new Series<String, Double>(); aSeries.setName("a"); cSeries.setName("C"); for (int i = 2011; i < 2021; i++) { aSeries.getData().add(new XYChart.Data(Integer.toString(i), aValue)); aValue = aValue + Math.random() - .5; cSeries.getData().add(new XYChart.Data(Integer.toString(i), cValue)); cValue = cValue + Math.random() - .5; } answer.addAll(aSeries, cSeries); return answer; } }
The code above generates the following result.
Add series
// w w w.j ava2s .c o m /* * Copyright (c) 2012 Oracle and/or its affiliates. * All rights reserved. Use is subject to license terms. * * This file is available and licensed under the following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the distribution. * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import javafx.application.Application; import javafx.collections.FXCollections; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.chart.NumberAxis; import javafx.scene.chart.ScatterChart; import javafx.scene.chart.XYChart; import javafx.scene.control.Button; import javafx.scene.effect.DropShadow; import javafx.scene.layout.HBox; import javafx.scene.layout.VBox; import javafx.scene.paint.Color; import javafx.stage.Stage; public class Main extends Application { @Override public void start(Stage stage) { stage.setTitle("Scatter Chart Sample"); final NumberAxis xAxis = new NumberAxis(0, 10, 1); final NumberAxis yAxis = new NumberAxis(-100, 500, 100); final ScatterChart<Number,Number> sc = new ScatterChart<Number,Number>(xAxis,yAxis); xAxis.setLabel("Age (years)"); yAxis.setLabel("Returns to date"); sc.setTitle("Investment Overview"); XYChart.Series series1 = new XYChart.Series(); series1.setName("Option 1"); series1.getData().add(new XYChart.Data(4.2, 193.2)); series1.getData().add(new XYChart.Data(2.8, 33.6)); series1.getData().add(new XYChart.Data(6.2, 24.8)); sc.setPrefSize(500, 400); sc.getData().addAll(series1); Scene scene = new Scene(new Group()); final VBox vbox = new VBox(); final HBox hbox = new HBox(); final Button add = new Button("Add Series"); add.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent e) { if (sc.getData() == null) sc.setData(FXCollections.<XYChart.Series<Number, Number>>observableArrayList()); ScatterChart.Series<Number, Number> series = new ScatterChart.Series<Number, Number>(); series.setName("Option "+(sc.getData().size()+1)); for (int i=0; i<100; i++) series.getData().add( new ScatterChart.Data<Number, Number>(Math.random()*100, Math.random()*500)); sc.getData().add(series); } }); final Button remove = new Button("Remove Series"); remove.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent e) { if (!sc.getData().isEmpty()) sc.getData().remove((int)(Math.random()*(sc.getData().size()-1))); } }); final DropShadow shadow = new DropShadow(); shadow.setOffsetX(2); shadow.setColor(Color.GREY); sc.setEffect(shadow); hbox.setSpacing(10); hbox.getChildren().addAll(add, remove); vbox.getChildren().addAll(sc, hbox); hbox.setPadding(new Insets(10, 10, 10, 50)); ((Group)scene.getRoot()).getChildren().add(vbox); stage.setScene(scene); stage.show(); } public static void main(String[] args) { launch(args); } }
The code above generates the following result.
