Java BasicStroke「模糊」

Question

我想用Java編寫一個簡單的畫圖小程序，但我遇到了BasicStroke問題。最初，我的計劃是試圖以某種方式繪製寬度的線條，但API顯然不支持這一點。

我嘗試使用BasicStroke，但結果只是一團糟。我該如何解決這個模糊問題？

private void mousedrag_hook(Point point) 
    { 
     if(start == null) 
      start = point; 

      end = point; 

      Graphics2D g2d = (Graphics2D)applInstance.buffer_g; 
      g2d.setStroke(new BasicStroke(7)); 

      //g2d.fillOval(point.x - 5, point.y - 5, 10, 10); 
      g2d.drawLine(start.x, start.y, end.x, end.y); 
      applInstance.repaint(); 

      start = end; 
    } 

Answer 1

不要忘了RenderingHints：

@Override 
public void paintComponent(Graphics g) { 
    super.paintComponent(g); 
    Graphics2D g2d = (Graphics2D) g; 
    g2d.setRenderingHint(
     RenderingHints.KEY_ANTIALIASING, 
     RenderingHints.VALUE_ANTIALIAS_ON); 
    ... 
}