HTML canvas shadowBlur用法及代碼示例

canvas shadowBlur屬性用於設置或返回陰影的模糊級別。

用法:

context.shadowBlur=number

屬性：

number:它用於設置陰影的模糊級別。

示例1：

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML canvas shadowBlur Property 
    </title> 
</head> 
  
<body> 
    <canvas id="GFG"
            width="500"
            height="300"> 
  </canvas> 
  
    <script> 
        var x = document.getElementById("GFG"); 
        var contex = x.getContext("2d"); 
        contex.shadowBlur = 50; 
        contex.shadowColor = "yellow"; 
        contex.fillStyle = "green"; 
        contex.fillRect(50, 50, 350, 200); 
        contex.stroke(); 
    </script> 
  
</body> 
  
</html>

輸出：

示例2：

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML canvas shadowBlur Property 
    </title> 
</head> 
  
<body> 
    <canvas id="GFG" 
            width="500" 
            height="300"> 
  </canvas> 
  
    <script> 
        var x = document.getElementById("GFG"); 
        var contex = x.getContext("2d"); 
        contex.shadowBlur = 100; 
        contex.shadowColor = "rgb(0, 153, 0)"; 
        contex.fillStyle = "rgb(255, 0, 255)"; 
        contex.fillRect(50, 50, 350, 200); 
        contex.stroke(); 
    </script> 
  
</body> 
  
</html>

輸出：

支持的瀏覽器：

穀歌瀏覽器
Internet Explorer 9.0
Firefox
Safari
Opera

相關用法

注：本文由純淨天空篩選整理自R_Raj大神的英文原創作品 HTML | canvas shadowBlur Property。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。