在JavaFX中将圆形更改为正方形以填充正方形

import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class CircleToSquareApp extends Application {

    @Override
    public void start(Stage primaryStage) {
        Circle circle = new Circle(50, Color.BLUE);
        Rectangle square = new Rectangle(100, 100, Color.RED);

        // 将圆形的半径绑定到正方形的宽度
        circle.radiusProperty().bind(Bindings.divide(square.widthProperty(), 2));

        // 将圆形的颜色绑定到正方形的颜色
        circle.fillProperty().bind(square.fillProperty());

        // 将圆形的位置绑定到正方形的位置
        circle.centerXProperty().bind(Bindings.add(square.xProperty(), Bindings.divide(square.widthProperty(), 2)));
        circle.centerYProperty().bind(Bindings.add(square.yProperty(), Bindings.divide(square.heightProperty(), 2)));

        VBox root = new VBox(circle, square);
        Scene scene = new Scene(root, 200, 200);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

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