d3.js interpolateBrBG()用法及代碼示例

D3.js中的d3.interpolateBrBG()函數是一種發色方案，可以用作連續內插器。此函數從BrBG發散配色方案返回相應的顏色。

用法:

d3.interpolateBrBG(t);

參數：該函數接受如上所述和以下描述的單個參數。

t:它是[0,1]範圍內的數字

返回值：它返回一個RGB字符串。

下麵給出的是上麵給出的函數的一些例子。

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"/> 
        <title>D3.js interpolateBrBG() 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.interpolateBrBG(0)); 
            console.log(d3.interpolateBrBG(0.1)); 
            console.log(d3.interpolateBrBG(0.001)); 
            console.log(d3.interpolateBrBG(0.2)); 
            console.log(d3.interpolateBrBG(0.211)); 
            console.log(d3.interpolateBrBG(0.3)); 
            console.log(d3.interpolateBrBG(1)); 
        </script> 
    </body> 
</html>

輸出：

範例2：

HTML

<!DOCTYPE html> 
<html lang="en"> 
    <head> 
        <meta charset="UTF-8" /> 
        <meta
            name="viewport"
            content="width=device-width,  
                     initial-scale=1.0"/> 
        <title>D3.js interpolateBrBG() Function</title> 
    </head> 
    <style> 
        div { 
            padding:10px; 
            width:fit-content; 
            height:100px; 
            float:left; 
        } 
    </style> 
    <body> 
        D3.interpolateBrBG() 
        <br /> 
        <br /> 
        <div class="b1"> 
            <span> 
                D3.interpolateBrBG(0.9) 
            </span> 
        </div> 
        <div class="b2"> 
            <span> 
                D3.interpolateBrBG(0.1) 
            </span> 
        </div> 
        <div class="b3"> 
            <span> 
                D3.interpolateBrBG(0.2) 
            </span> 
        </div> 
        <div class="b4"> 
            <span> 
                D3.interpolateBrBG(0.5) 
            </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.interpolateBrBG(0.9); 
  
            let color2 = d3.interpolateBrBG(0.1); 
            let color3 = d3.interpolateBrBG(0.2); 
            let color4 = d3.interpolateBrBG(0.5); 
  
            let b1 = document.querySelector(".b1"); 
            let b2 = document.querySelector(".b2"); 
            let b3 = document.querySelector(".b3"); 
            let b4 = document.querySelector(".b4"); 
            b1.style.backgroundColor = color1; 
            b2.style.backgroundColor = color2; 
            b3.style.backgroundColor = color3; 
            b4.style.backgroundColor = color4; 
        </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 interpolateBrBG() 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。