d3.js interpolateSinebow()用法及代码示例

d3.interpolateSinbow()函数是Jim Bumgardner和Charlie Loyd引入的sinebow配色方案的一部分。此函数用于返回与Sinebow配色方案相对应的RGB颜色字符串。

用法:

d3.interpolateSinebow(t);

参数：该函数接受上述和以下描述的单个参数：

t:它是一个数值，范围为[0，1](含)。

返回值：above-given函数返回RGB字符串。

下面给出的是上面给出的函数的一些例子。

范例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.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> 
    <script> 
        console.log(d3.interpolateSinebow(0.4)); 
        console.log(d3.interpolateSinebow(0.3)); 
        console.log(d3.interpolateSinebow(0.2)); 
        console.log(d3.interpolateSinebow(0.5)); 
        console.log(d3.interpolateSinebow(0.4)); 
        console.log(d3.interpolateSinebow(0.9)); 
        console.log(d3.interpolateSinebow(0.2)); 
        console.log(d3.interpolateSinebow(0)); 
    </script> 
</body> 
  
</html>

输出：

范例2：

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" content= 
        "width=device-width,initial-scale=1.0"> 
  
    <style> 
        div { 
            padding:6px; 
            text-align:center; 
            vertical-align:middle; 
            display:flex; 
            justify-content:center; 
            width:90px; 
            height:50px; 
            float:left; 
        } 
    </style> 
  
    <!--Fetching from CDN of D3.js -->
    <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> 
    <h2>D3.interpolateSinebow() </h2> 
  
    <div class="pixel1"> 
        <span></span> 
    </div> 
    <div class="pixel2"> 
        <span></span> 
    </div> 
    <div class="pixel3"> 
        <span></span> 
    </div> 
    <div class="pixel4"> 
        <span></span> 
    </div> 
    <div class="pixel5"> 
        <span></span> 
    </div> 
  
    <script> 
        // Creating different colors for 
        // different 
        // Values of t is 0.4 
        let color1 = 
            d3.interpolateSinebow(0.4); 
        // Values of t is 0.6 
        let color2 = 
            d3.interpolateSinebow(0.6); 
        // Values of t is 0.8 
        let color3 = 
            d3.interpolateSinebow(0.8); 
        // Values of t is 0.9 
        let color4 = 
            d3.interpolateSinebow(0.9); 
        // Values of t is 0 
        let color5 = 
            d3.interpolateSinebow(0); 
  
        // Selecting Div using query selector 
        let pixel1 = document.querySelector(".pixel1"); 
        let pixel2 = document.querySelector(".pixel2"); 
        let pixel3 = document.querySelector(".pixel3"); 
        let pixel4 = document.querySelector(".pixel4"); 
        let pixel5 = document.querySelector(".pixel5"); 
  
        // Setting style and BG color of the 
        // particular DIVs 
        pixel1.style.backgroundColor = color1; 
        pixel2.style.backgroundColor = color2; 
        pixel3.style.backgroundColor = color3; 
        pixel4.style.backgroundColor = color4; 
        pixel5.style.backgroundColor = color5;  
    </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 interpolateSinebow() 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。