d3.js schemeReds[]用法及代碼示例

D3.js中的d3.schemeReds []函數用於從“Reds”順序配色方案中返回特定顏色，該顏色以十六進製字符串形式返回。

用法:

d3.schemeReds[k]

參數：該函數接受如上所述和以下描述的單個參數：

k:“k”是3到9之間的一個數字。

返回值：它返回一個十六進製字符串。

下麵給出的是上麵給出的函數的一些示例。

範例1：

<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8" />  
    <meta name="viewport"
        path1tent="width=device-width,   
        initial-scale=1.0"/>  
          
    <title>D3.js schemeReds[] Function</title>  
    <script src= "https://d3js.org/d3.v4.min.js"></script>  
    <script src= "https://d3js.org/d3-color.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-interpolate.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-scale-chromatic.v1.min.js"></script>  
</head>  
<body>  
    <center> 
    <h1 style="color:green;">GeeksForGeeks</h1> 
      
    <h3>D3.js schemeReds[] Function</h3> 
      
    <script>  
        document.write(d3.schemeReds[6][0]+"<br>");  
        document.write(d3.schemeReds[6][1]+"<br>"); 
        document.write(d3.schemeReds[6][2]+"<br>"); 
        document.write(d3.schemeReds[6][3]+"<br>"); 
        document.write(d3.schemeReds[6][4]+"<br>"); 
        document.write(d3.schemeReds[6][5]); 
    </script>  
    </center> 
</body>  
</html>

輸出：

範例2：

<!DOCTYPE html>  
<html lang="en">  
<head>  
    <meta charset="UTF-8" />  
    <meta name="viewport"
        path1tent="width=device-width,   
        initial-scale=1.0"/>  
          
    <title>D3.js schemeReds[] Function</title>  
    <script src= "https://d3js.org/d3.v4.min.js"></script>  
    <script src= "https://d3js.org/d3-color.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-interpolate.v1.min.js"></script>  
    <script src= "https://d3js.org/d3-scale-chromatic.v1.min.js"></script>  
</head>  
<style>  
    div {  
        padding:10px;  
        width:fit-content;  
        height:20px;  
    }  
</style>  
<body>  
    <center> 
    <h1 style="color:green;">GeeksForGeeks</h1> 
      
    <h3>D3.js schemeReds[] Function</h3> 
      
    <div class="b1">  
        <span>  
            D3.schemeReds[6][0]  
        </span>  
    </div>  
    <div class="b2">  
        <span>  
            D3.schemeReds[6][1]   
        </span>  
    </div>  
    <div class="b3">  
        <span>  
            D3.schemeReds[6][2]  
        </span>  
    </div>  
    <div class="b4">  
        <span>  
            D3.schemeReds[6][3]   
        </span>  
    </div>  
    <div class="b5">  
        <span>  
            D3.schemeReds[6][4]  
        </span>  
    </div>  
    <div class="b6">  
        <span>  
            D3.schemeReds[6][5]   
        </span>  
    </div>  
      
    <script>  
        // Array of colors is given  
        let color1 = d3.schemeReds[6][0];  
        let color2 = d3.schemeReds[6][1];  
        let color3 = d3.schemeReds[6][2];  
        let color4 = d3.schemeReds[6][3];  
        let color5 = d3.schemeReds[6][4];  
        let color6 = d3.schemeReds[6][5];  
  
        let b1 = document.querySelector(".b1");  
        let b2 = document.querySelector(".b2");  
        let b3 = document.querySelector(".b3");  
        let b4 = document.querySelector(".b4");  
        let b5 = document.querySelector(".b5");  
        let b6 = document.querySelector(".b6");  
          
        b1.style.backgroundColor = color1;  
        b2.style.backgroundColor = color2; 
        b3.style.backgroundColor = color3;  
        b4.style.backgroundColor = color4; 
        b5.style.backgroundColor = color5;  
        b6.style.backgroundColor = color6; 
    </script>  
    </center> 
</body>  
</html>

輸出：

相關用法

注：本文由純淨天空篩選整理自SHUBHAMSINGH10大神的英文原創作品 D3.js schemeReds[] 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。