d3.js arc.endAngle()用法及代碼示例

D3.js庫的arc.endAngle()函數用於設置圓弧的終止角度。該函數將端角設置為函數或整數。

用法:

arc.endAngle([angle]);

參數：該函數接受如上所述和以下描述的單個參數。

angle:這需要一個與弧的終止角相對應的數字。

返回值：此函數不返回任何內容。

下麵給出的是上麵給出的函數的一些例子。

範例1：

HTML

<!DOCTYPE html>  
<html lang="en">  
    <head>  
        <meta charset="UTF-8" />  
        <meta
            name="viewport"
            content="width=device-width,  
                    initial-scale=1.0"/>         
        <!--Fetching from CDN of D3.js -->
        <script src=  
        "https://d3js.org/d3.v6.min.js">  
        </script> 
    </head> 
    <body>  
        <div style="width:300px; height:300px;"> 
            <center> 
                <h1 style="color:green"> 
                    GeeksforGeeks 
                </h1>  
                <h2> 
                    arc.endAngle() 
                </h2>  
            </center> 
            <svg width="300" height="300"> 
            </svg> 
        </div> 
        <script>  
        var svg = d3.select("svg") 
            .append("g") 
            .attr("transform", "translate(120, 100)"); 
  
        // An arc will be produced 
        var arc = d3.arc() 
            .outerRadius(80) 
            .innerRadius(90) 
            .startAngle(0) 
        // Use of arc.endAngle() Function     
            .endAngle(2*2); 
  
        svg.append("path") 
            .attr("class", "arc") 
            .attr("d", arc); 
  
        let p = document.querySelector(".arc"); 
        p.style.fill="green"; 
        </script>  
    </body>  
</html>

輸出：

範例2：

HTML

<!DOCTYPE html>  
<html lang="en">  
    <head>  
        <meta charset="UTF-8" />  
        <meta
            name="viewport"
            content="width=device-width,  
                    initial-scale=1.0"/>          
        <!--Fetching from CDN of D3.js -->
        <script src=  
        "https://d3js.org/d3.v6.min.js">  
        </script> 
    </head> 
    <body>  
        <div style="width:300px; height:300px;"> 
            <center> 
                <h1 style="color:green"> 
                    GeeksforGeeks 
                </h1>  
                <h2> 
                    arc.endAngle() 
                </h2>  
            </center> 
            <svg width="300" height="300"> 
            </svg> 
        </div> 
        <script>  
        var svg = d3.select("svg") 
            .append("g") 
            .attr("transform", "translate(150, 100)"); 
  
        // An arc will be produced 
        var arc = d3.arc() 
            .outerRadius(-1) 
            .innerRadius(90) 
            .startAngle(0) 
        // Use of arc.endAngle() Function     
            .endAngle(2*2.5); 
  
        svg.append("path") 
            .attr("class", "arc") 
            .attr("d", arc); 
  
        let p = document.querySelector(".arc"); 
        p.style.fill="green"; 
        </script>  
    </body>  
</html>

輸出：

相關用法

注：本文由純淨天空篩選整理自tarun007大神的英文原創作品 D3.js arc.endAngle() Function。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。