d3.js closePath()用法及代码示例

d3.closePath()函数用于关闭当前正在进行的子路径，几乎与SVG的closepath命令相同。

用法:

d3.closePath()

参数：它不接受任何参数。

返回值：它不返回任何值。

范例1：

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width,initial-scale=1.0"> 
          
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
  
    <style> 
        h1 { 
            color:green; 
        } 
  
        svg { 
            background-color:#f2f2f2; 
        } 
  
        .path1, 
        .path2 { 
            stroke:#000; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1>GeeksforGeeks</h1> 
        <b>D3.js | Path.closePath() Function</b> 
        <br> 
        Note the difference between  
        color of both the lines 
        <br><br> 
        Without closePath() rest all properties  
        such as color, size are same <br> 
  
        <svg width="100" height="100"> 
            <path class="path1"> 
        </svg> <br> 
  
        With closePath() rest all properties  
        such as color, size are same <br> 
        <svg width="100" height="100"> 
            <path class="path2"> 
        </svg> 
    </div> 
  
    <script> 
  
        // Creating a path  
        var path1 = d3.path(); 
        path1.moveTo(40, 0); 
          
        // Making line to x:0 and y:100  
        path1.lineTo(40, 100); 
        d3.select(".path1").attr("d", path1); 
  
        // Creating a path  
        var path1 = d3.path(); 
        path1.moveTo(40, 0); 
          
        // Making line to x:0 and y:100  
        path1.lineTo(40, 100); 
          
        // Closing the path  
        path1.closePath(); 
        d3.select(".path2").attr("d", path1);  
    </script> 
</body> 
  
</html>

输出：

范例2：

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width,initial-scale=1.0"> 
  
    <script src= 
        "https://d3js.org/d3.v4.min.js"> 
    </script> 
  
    <style> 
        h1 { 
            color:green; 
        } 
  
        svg { 
            background-color:#f2f2f2; 
        } 
  
        .path1, 
        .path2 { 
            stroke:#000; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1>GeeksforGeeks</h1> 
        <b>D3.js | Path.closePath() Function</b> 
        <br><br> 
        Without closePath() rest all properties  
        such as color, size are same <br> 
        <svg width="100" height="100"> 
            <path class="path1"> 
        </svg> <br> 
        With closePath() rest all properties  
        such as color, size are same <br> 
        <svg width="100" height="100"> 
            <path class="path2"> 
        </svg> 
    </div> 
  
    <script> 
  
        // Creating a path  
        var path1 = d3.path(); 
        path1.moveTo(40, 0); 
          
        // Making line to x:40 and y:100  
        path1.lineTo(40, 90); 
          
        // Making line to x:80 and y:100  
        path1.lineTo(80, 90); 
        d3.select(".path1").attr("d", path1); 
  
        // Creating a path  
        var path1 = d3.path(); 
        path1.moveTo(40, 0); 
          
        // Making line to x:40 and y:100  
        path1.lineTo(40, 90); 
          
        // Closing the path  
        path1.closePath(); 
          
        // Making line to x:80 and y:100  
        path1.lineTo(80, 90); 
          
        // Closing the path  
        path1.closePath(); 
        d3.select(".path2").attr("d", path1);  
    </script> 
</body> 
  
</html>

输出：

相关用法

注：本文由纯净天空筛选整理自tarun007大神的英文原创作品 D3.js closePath() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。