用JavaFX实现绘画懒羊羊的功能
时间: 2024-05-03 07:17:59 浏览: 10
实现绘画懒羊羊的功能,可以通过JavaFX的绘图功能来实现。下面是一个简单的实现步骤:
1. 创建JavaFX的应用程序,并设置窗口大小和标题。
```java
public class DrawLazySheep extends Application {
private static final int WIDTH = 800;
private static final int HEIGHT = 600;
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Draw Lazy Sheep");
primaryStage.setScene(new Scene(new Group(), WIDTH, HEIGHT));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
```
2. 在窗口中添加Canvas,用于绘图。
```java
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Draw Lazy Sheep");
Group root = new Group();
Canvas canvas = new Canvas(WIDTH, HEIGHT);
GraphicsContext gc = canvas.getGraphicsContext2D();
root.getChildren().add(canvas);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
```
3. 实现绘制懒羊羊的方法,包括头、身体、腿、眼睛等部分。
```java
private void drawLazySheep(GraphicsContext gc) {
// 画头部
gc.setFill(Color.WHITE);
gc.setStroke(Color.BLACK);
gc.setLineWidth(2);
gc.fillRoundRect(100, 100, 200, 200, 50, 50);
gc.strokeRoundRect(100, 100, 200, 200, 50, 50);
// 画身体
gc.setFill(Color.WHITE);
gc.setStroke(Color.BLACK);
gc.setLineWidth(2);
gc.fillRoundRect(50, 300, 300, 200, 50, 50);
gc.strokeRoundRect(50, 300, 300, 200, 50, 50);
// 画腿
gc.strokeLine(100, 500, 100, 550);
gc.strokeLine(250, 500, 250, 550);
// 画眼睛
gc.setFill(Color.BLACK);
gc.fillOval(150, 150, 50, 50);
gc.fillOval(200, 150, 50, 50);
}
```
4. 在应用程序启动时调用绘制懒羊羊的方法。
```java
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Draw Lazy Sheep");
Group root = new Group();
Canvas canvas = new Canvas(WIDTH, HEIGHT);
GraphicsContext gc = canvas.getGraphicsContext2D();
drawLazySheep(gc);
root.getChildren().add(canvas);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
```
这样就可以实现用JavaFX绘制懒羊羊的功能了。完整代码如下:
```java
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class DrawLazySheep extends Application {
private static final int WIDTH = 800;
private static final int HEIGHT = 600;
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Draw Lazy Sheep");
Group root = new Group();
Canvas canvas = new Canvas(WIDTH, HEIGHT);
GraphicsContext gc = canvas.getGraphicsContext2D();
drawLazySheep(gc);
root.getChildren().add(canvas);
primaryStage.setScene(new Scene(root));
primaryStage.show();
}
private void drawLazySheep(GraphicsContext gc) {
// 画头部
gc.setFill(Color.WHITE);
gc.setStroke(Color.BLACK);
gc.setLineWidth(2);
gc.fillRoundRect(100, 100, 200, 200, 50, 50);
gc.strokeRoundRect(100, 100, 200, 200, 50, 50);
// 画身体
gc.setFill(Color.WHITE);
gc.setStroke(Color.BLACK);
gc.setLineWidth(2);
gc.fillRoundRect(50, 300, 300, 200, 50, 50);
gc.strokeRoundRect(50, 300, 300, 200, 50, 50);
// 画腿
gc.strokeLine(100, 500, 100, 550);
gc.strokeLine(250, 500, 250, 550);
// 画眼睛
gc.setFill(Color.BLACK);
gc.fillOval(150, 150, 50, 50);
gc.fillOval(200, 150, 50, 50);
}
public static void main(String[] args) {
launch(args);
}
}
```