动态更改JavaFX图表的数据和颜色

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.chart.LineChart;
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) {
        // 定义坐标轴
        NumberAxis xAxis = new NumberAxis();
        NumberAxis yAxis = new NumberAxis();

        // 创建折线图
        LineChart<Number, Number> lineChart = new LineChart<>(xAxis, yAxis);

        // 添加示例数据
        XYChart.Series<Number, Number> series = new XYChart.Series<>();
        series.getData().add(new XYChart.Data<>(1, 23));
        series.getData().add(new XYChart.Data<>(2, 14));
        series.getData().add(new XYChart.Data<>(3, 15));

        // 将系列添加到图表
        lineChart.getData().add(series);

        // 创建场景并显示图表
        Scene scene = new Scene(lineChart, 800, 600);
        stage.setScene(scene);
        stage.show();
    }

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

private void updateChartData(LineChart<Number, Number> lineChart, XYChart.Series<Number, Number> series, List<XYChart.Data<Number, Number>> newData, Color lineColor) {
    // 更新数据
    series.setData(FXCollections.observableArrayList(newData));

    // 更改线条颜色
    lineChart.setStyle("-fx-stroke: " + toRGBCode(lineColor) + ";");

    // 更改数据点的颜色
    for (XYChart.Data<Number, Number> data : series.getData()) {
        Circle circle = (Circle) data.getNode();
        circle.setFill(lineColor);
    }
}

Button button = new Button("Update Chart");
button.setOnAction(event -> {
    List<XYChart.Data<Number, Number>> newData = Arrays.asList(
            new XYChart.Data<>(4, 25),
            new XYChart.Data<>(5, 30),
            new XYChart.Data<>(6, 28)
    );
    Color newColor = Color.BLUE;
    updateChartData(lineChart, series, newData, newColor);
});