JavaFX:如何将多个图像合并为一个图像？

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.image.Image;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

public class ImageMergeExample extends Application {

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

    @Override
    public void start(Stage primaryStage) {
        // 创建一个画布
        Canvas canvas = new Canvas(400, 400);
        GraphicsContext gc = canvas.getGraphicsContext2D();

        // 加载多个图像
        Image image1 = new Image("image1.png");
        Image image2 = new Image("image2.png");
        Image image3 = new Image("image3.png");

        // 将图像绘制到画布上
        gc.drawImage(image1, 0, 0);
        gc.drawImage(image2, 100, 100);
        gc.drawImage(image3, 200, 200);

        // 创建一个场景并显示
        Pane root = new Pane(canvas);
        Scene scene = new Scene(root, 400, 400);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}