d3.js time.clamp()用法及代碼示例

D3.js中的time.clamp()函數用於啟用或禁用鉗位。如果禁用鉗位，則返回值的範圍可能超出給定範圍。

用法:

time.clamp( clamp )

參數：此函數僅接受上麵給出的和下麵描述的一個參數：

clamp:它是一個布爾值，定義了啟用還是禁用鉗位。

返回值：此函數不返回任何內容。

以下示例程序旨在說明D3.js中的time.clamp()函數：

範例1：當鉗位設置為假時。

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <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> 
    <h1 style="color:green">GeeksforGeeks</h1> 
  
    <p>time.clamp() Function </p> 
  
    <script> 
  
        var time = d3.scaleTime() 
            // Setting domain for the scale. 
            .domain([1, 100]) 
            .range([1, 10]) 
            .clamp(false); 
  
        document.write("<h3>time(900):" + 
            time(900) + "</h3>"); 
        document.write("<h3>time(100.5):" + 
            time(100.5) + "</h3>"); 
        document.write("<h3>time(888):" + 
            time(888) + "</h3>"); 
        document.write("<h3>time(150):" + 
            time(150) + "</h3>"); 
    </script> 
</body> 
  
</html>

輸出：

範例2：鉗位設置為true時。

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <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> 
    <h1 style="color:green">GeeksforGeeks</h1> 
  
    <p>time.clamp() Function </p> 
  
    <script> 
  
        var time = d3.scaleTime() 
            // Setting domain for the scale. 
            .domain([1, 100]) 
            .range([1, 10]) 
            .clamp(true); 
  
        document.write("<h3>time(900):" 
            + time(900) + "</h3>"); 
        document.write("<h3>time(100.5):" 
            + time(100.5) + "</h3>"); 
        document.write("<h3>time(888):" 
            + time(888) + "</h3>"); 
        document.write("<h3>time(150):" 
            + time(150) + "</h3>"); 
    </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 time.clamp() 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。