JavaFX:用圆弧填充一定百分比的圆

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import javafx.stage.Stage;

public class CircleFillPercentage extends Application {

    @Override
    public void start(Stage primaryStage) {
        Group root = new Group();
        Scene scene = new Scene(root, 400, 400);

        double centerX = 200;
        double centerY = 200;
        double radius = 100;
        double startAngle = 90; // 从正上方开始
        double percentage = 0.75; // 填充百分比

        // 创建一个圆弧
        Arc arc = new Arc(centerX, centerY, radius, radius, startAngle, percentage * 360);
        arc.setType(ArcType.ROUND);
        arc.setFill(Color.BLUE);
        arc.setStroke(Color.BLACK);

        root.getChildren().add(arc);

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

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