Java 如何放大这个圆，以便计算各个像素？

如何放大这个圆，以便计算各个像素？ 我在Minecraft中画圆圈，我希望每个圆圈都有一个好的模板

// Import the basic graphics classes.
import java.awt.*;
import javax.swing.*;
public class BasicJPanel2 extends JPanel{


    private static final long serialVersionUID = 1L;
// Create a constructor method
  public BasicJPanel2(){
    super();
  }

  public void paintComponent(Graphics g){

    // draw a circle
    int upperLeft_x = 10;
    int upperLeft_y = 20;
    int width = 65;
    int height = 65;
    g.drawOval(upperLeft_x,upperLeft_y,width,height); // draw circle

  }

}

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解决此问题的最简单方法是将图形对象强制转换为Graphics2D，然后使用scaledouble、double方法进行缩放

// zooms in by a factor of 5 - call this method before rendering the circle
g2.scale(5, 5);