JavaFX 区域图

区域图是另一种类型的双轴图表。

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.StackedAreaChart;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class Main extends Application {
    public static void main(String[] args) {
        launch(args);
    }
    @Override
    public void start(Stage primaryStage) {
        Group root = new Group();
        final NumberAxis xAxis = new NumberAxis(1, 12, 1);
        final NumberAxis yAxis = new NumberAxis();
        final StackedAreaChart<Number,Number> stackedAreaChart = new StackedAreaChart<Number,Number>(xAxis,yAxis);
        final XYChart.Series<Number,Number> series1 = new XYChart.Series<Number,Number>();
        xAxis.setLabel("Month");
        yAxis.setLabel("Value");
        stackedAreaChart.setTitle("StackedAreaChart");
        series1.setName("XYChart.Series 1");
        series1.getData().add(new XYChart.Data(1, 100));
        series1.getData().add(new XYChart.Data(2, 200));
        series1.getData().add(new XYChart.Data(10, 150));
        XYChart.Series<Number,Number> series2 = new XYChart.Series();
        series2.setName("XYChart.Series 2");
        series2.getData().add(new XYChart.Data(1, 50));
        series2.getData().add(new XYChart.Data(2, 200));
        series2.getData().add(new XYChart.Data(10, 260));
        stackedAreaChart.getData().addAll(series1, series2);
        root.getChildren().addAll(stackedAreaChart);
        primaryStage.setScene(new Scene(root, 500, 400));
        primaryStage.show();
    }
}

创建区域图

要创建区域图，请使用AreaChart对象和使用XYChart.Series类创建一个或多个数据系列，并将数据分配给图表。

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.CategoryAxis;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class Main extends Application {
    public static void main(String[] args) {
        launch(args);
    }
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("");
        Group root = new Group();
        final CategoryAxis xAxis = new CategoryAxis();
        final NumberAxis yAxis = new NumberAxis();
        xAxis.setLabel("Month");
        yAxis.setLabel("Value");
        final AreaChart<String,Number> areaChart = new AreaChart<String,Number>(xAxis,yAxis);
        areaChart.setTitle("AreaChart");
        XYChart.Series series = new XYChart.Series();
        series.setName("XYChart.Series");
        series.getData().add(new XYChart.Data("January", 100));
        series.getData().add(new XYChart.Data("February", 200));
        series.getData().add(new XYChart.Data("March", 50));
        areaChart.getData().add(series);
        root.getChildren().add(areaChart);
        primaryStage.setScene(new Scene(root, 500, 400));
        primaryStage.show();
    }
}

向AreaChart添加更多系列

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.AreaChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class Main extends Application {
    @Override public void start(Stage stage) {
        stage.setTitle("Area Chart Sample");
        final NumberAxis xAxis = new NumberAxis(1, 30, 1);
        final NumberAxis yAxis = new NumberAxis(-5, 27, 5);
        final AreaChart<Number,Number> ac = 
            new AreaChart<Number,Number>(xAxis,yAxis);
        xAxis.setForceZeroInRange(true);
        ac.setTitle("Temperature Monitoring (in Degrees C)");       
        XYChart.Series series1 = new XYChart.Series();
        series1.setName("March");
        series1.getData().add(new XYChart.Data(0, -2));
        series1.getData().add(new XYChart.Data(3, -4));
        series1.getData().add(new XYChart.Data(6, 0));
        series1.getData().add(new XYChart.Data(9, 5));
        XYChart.Series series2 = new XYChart.Series();
        series2.setName("April");
        series2.getData().add(new XYChart.Data(0, 4));
        series2.getData().add(new XYChart.Data(3, 10));
        series2.getData().add(new XYChart.Data(6, 15));
        series2.getData().add(new XYChart.Data(9, 8));
        XYChart.Series series3 = new XYChart.Series();
        series3.setName("May");
        series3.getData().add(new XYChart.Data(0, 20));
        series3.getData().add(new XYChart.Data(3, 15));
        series3.getData().add(new XYChart.Data(6, 13));
        series3.getData().add(new XYChart.Data(9, 12));
        Scene scene  = new Scene(ac,800,600);
        //scene.getStylesheets().add("areachartsample/Chart.css");
        ac.setHorizontalZeroLineVisible(true);
        ac.getData().addAll(series1, series2, series3);
        stage.setScene(scene);
        stage.show();
    }
    public static void main(String[] args) {
        launch(args);
    }
}

创建堆叠区域图

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.StackedAreaChart;
import javafx.scene.chart.XYChart;
import javafx.stage.Stage;
public class Main extends Application {
    final NumberAxis xAxis = new NumberAxis(1, 10, 1);
    final NumberAxis yAxis = new NumberAxis();
    final StackedAreaChart<Number, Number> sac =
        new StackedAreaChart<>(xAxis, yAxis);
    @Override
    public void start(Stage stage) {
        sac.setTitle("title");
        XYChart.Series<Number, Number> seriesApril =
            new XYChart.Series<>();
        seriesApril.setName("April");
        seriesApril.getData().add(new XYChart.Data(1, 4));
        seriesApril.getData().add(new XYChart.Data(3, 10));
        seriesApril.getData().add(new XYChart.Data(6, 15));
        XYChart.Series<Number, Number> seriesMay =
            new XYChart.Series<>();
        seriesMay.setName("May");
        seriesMay.getData().add(new XYChart.Data(1, 23));
        seriesMay.getData().add(new XYChart.Data(7, 26));
        seriesMay.getData().add(new XYChart.Data(10, 26));
        Scene scene = new Scene(sac, 800, 600);
        sac.getData().addAll(seriesApril, seriesMay);
        stage.setScene(scene);
        stage.show();
    }
    public static void main(String[] args) {
        launch(args);
    }
}