d3.js quantile.copy()用法及代碼示例

Quantile.copy()函數返回原始比例的精確副本。如果在任何一個比例尺上進行任何更改，都不會影響另一個比例尺。

用法:

quantile.copy();

參數：此函數不接受任何參數。

返回值：此函數返回原始比例的副本。

以下示例說明了D3.js中的Quantile.copy()函數：

範例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> 
</head> 
  
<body> 
    <h2 style="color:green;">GeekforGeeks</h2> 
  
    <p>quantile.copy() Function</p> 
  
    <script> 
        var quantile = d3.scaleQuantile() 
            // Setting domain for the scale. 
            .domain([1, 2, 15, 19]) 
            // Discrete range 
            .range(["red", "green", "black", "blue"]); 
        // Printing the output. 
        document.write("<h3>Form original scale:</h3>"); 
  
        document.write("<span>quantile(1):"  
                + quantile(1) + "</span><br>"); 
        document.write("<span>quantile(15):"  
                + quantile(15) + "</span><br>"); 
        document.write("<h3>Form copy scale:</h3>"); 
        var copyscale = quantile.copy(); 
        document.write("<span>copyscale(1):"  
                + copyscale(1) + "</span><br>"); 
        document.write("<span>copyscale(15):" 
                + copyscale(15) + "</span><br>"); 
    </script> 
</body> 
  
</html>

輸出：

範例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> 
</head> 
  
<body> 
    <h2 style="color:green;">GeekforGeeks</h2> 
  
    <p>quantile.copy() Function </p> 
  
    <script> 
        var quantile = d3.scaleQuantile() 
            // Setting domain for the scale. 
            .domain([1, 2, 15, 19]) 
            // Discrete range 
            .range(["red", "green", "black", "blue"]); 
  
        // Printing the output. 
        document.write("<h3>Form original scale:</h3>"); 
        document.write("<span>quantile(2):"  
                + quantile(2) + "</span><br>"); 
        document.write("<span>quantile(19):"  
                + quantile(19) + "</span><br>"); 
        document.write("<h3>Form copy scale:</h3>"); 
        // Changing th copy scale.  
        var copyscale = quantile.copy() 
            .range([1.22, 11.5421, 2.2154, 3.2154]); 
        document.write("<span>copyscale(2):"  
                + copyscale(2) + "</span><br>"); 
        document.write("<span>copyscale(19):"  
                + copyscale(19) + "</span><br>"); 
    </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 quantile.copy() 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。