d3.js interpolateYlGn()用法及代码示例

D3.js中的d3.interpolateYlGn()函数用于从YlGn顺序颜色方案中返回特定颜色，该颜色作为RGB字符串返回。

用法:

d3.interpolateYlGn(t)

参数：该函数接受如上所述和以下描述的单个参数：

t:“t”是[0,1]范围内的数字

返回值：它返回一个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"
            path1tent="width=device-width,  
                       initial-scale=1.0"/> 
        <title>D3.js interpolateYlGn() Function</title> 
    </head> 
    <style></style> 
    <body> 
        <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> 
  
        <script> 
            console.log(d3.interpolateYlGn(0)); 
            console.log(d3.interpolateYlGn(0.1)); 
            console.log(d3.interpolateYlGn(0.001)); 
            console.log(d3.interpolateYlGn(0.2)); 
            console.log(d3.interpolateYlGn(0.211)); 
            console.log(d3.interpolateYlGn(0.3)); 
            console.log(d3.interpolateYlGn(1)); 
        </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"/> 
        <title>Document</title> 
    </head> 
    <style> 
        div { 
            padding:10px; 
            width:fit-content; 
            height:100px; 
        } 
    </style> 
    <body> 
        D3.interpolateYlGn() 
        <div class="b1"> 
            <span> 
                D3.interpolateYlGn(0.9) 
            </span> 
        </div> 
        <div class="b2"> 
            <span> 
                D3.interpolateYlGn(0.1) 
            </span> 
        </div> 
        <!--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> 
        <script> 
            // Array of colors is given 
            let color1 = d3.interpolateYlGn(0.9); 
  
            let color2 = d3.interpolateYlGn(0.2); 
  
            let b1 = document.querySelector(".b1"); 
            let b2 = document.querySelector(".b2"); 
            b1.style.backgroundColor = color1; 
            b2.style.backgroundColor = color2; 
        </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 interpolateYlGn() 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。