绘制一个Rosetta形状

Question

我必须做一个draw.oval函数和draw.arc函数。不过，我真的希望我能按照自己的方式去做。这是我现在拥有的，但它仍然没有正确排队。任何见解？谢谢！

//********************************************************************** 
// Fish.Java Louis Colucci 
// Draws a rosetta 
//********************************************************************** 

import javax.swing.JApplet; 

import java.awt.*; 

public class Rosetta extends JApplet 
{ 
    public void paint (Graphics page) 
    { 


     setBackground (Color.white); 
     page.setColor (Color.black); 


     //Draws the body 

     page.drawOval(360, 360, 360,360); 
     page.drawArc(360,180, 360,360,360,360); 
     page.drawArc(360,540, 360,360,360,360); 

     page.drawArc(525,435, 360,360,360,360); 
     page.drawArc(525,285, 360,360,360,360); 
     page.drawArc(195,435, 360,360,360,360); 
     page.drawArc(195,285, 360,360,360,360); 

    } 

} 

Answer 1

喜欢的东西....

1. 停止使用幻数，用在渲染
2. 呼叫super.paint(...)时实际知道的价值观，这是非常非常重要的如果你不这样做，你最终会出现图形故障。事实上，使用JPanel并覆盖其paintComponent方法，做你的风俗画有（但不要忘记调用super.paintComponent）

...

import java.awt.Color; 
import java.awt.Graphics; 
import java.awt.Graphics2D; 
import java.awt.geom.AffineTransform; 
import java.text.NumberFormat; 
import javax.swing.JApplet; 

public class Rosetta extends JApplet { 

    public void paint(Graphics page) { 

     super.paint(page); 

     page.setColor(Color.black); 

     int width = getWidth(); 
     int height = getHeight(); 

     int roseWidth = Math.min(width/2, height/2); 
     int roseHeight = roseWidth; 

     int centerX = width/2; 
     int centerY = height/2; 

     int x = (width - roseWidth)/2; 
     int y = (height - roseHeight)/2; 

     page.drawRect(x, y, roseWidth, roseHeight); 
     page.drawOval(x, y, roseWidth, roseHeight); 

     Graphics2D g2d = (Graphics2D) page; 
     float angle = 30f; 
     AffineTransform t = g2d.getTransform(); 
     g2d.transform(AffineTransform.getRotateInstance(Math.toRadians(angle), centerX, centerY)); 
     angle = 60f; 
     for (int index = 0; index < 6; index++) { 
      g2d.transform(AffineTransform.getRotateInstance(Math.toRadians(angle), centerX, centerY)); 
      g2d.drawArc(x + (roseWidth/2), y, roseWidth, roseHeight, 360, 360); 
     } 
     g2d.transform(t); 
    } 

} 

Answer 2

试试这个：

import javax.swing.JApplet; 
import java.awt.*; 

public class Rosetta extends JApplet 

{ 

public void paint(Graphics page) 

     { 
       final int MID = 130; 
       final int TOP = 75; 

       page.drawArc(MID,TOP-76,150,150,210,121); 
       page.drawArc(MID,TOP+76,150,150,30,120); 
       page.drawArc(MID+65,TOP+35,150,150,90,120); 
       page.drawArc(MID-65,TOP+35,150,150,330,120); 
       page.drawArc(MID-65,TOP-35,150,150,270,120); 
       page.drawArc(MID+65,TOP-35,150,150,150,121); 

       page.setColor(Color.red); 
       page.drawOval(MID-1,TOP,151,151); 
       }   
}