D3.js interpolateBrBG()函数

D3.js 中的d3.interpolateBrBG()函数是一种发散的配色方案，可用作连续插值器。此函数从 BrBG 发散配色方案中返回相应的颜色。

句法：

d3.interpolateBrBG(t);

参数：此函数接受如上所述和下文所述的单个参数。

• t：它是 [0,1] 范围内的数字 

返回值：它返回一个 RGB字符串。

下面给出了上面给出的函数的几个例子。

示例 1：

HTML

    
        
        
        D3.js interpolateBrBG() Function
    
    
    
        
        
        
        
        
        
        
        
        
            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));
        
    

输出：

示例 2：

HTML

    
        
        
        D3.js interpolateBrBG() Function
    
    
        div {
            padding: 10px;
            width: fit-content;
            height: 100px;
            float: left;
        }
    
    
        D3.interpolateBrBG()
        
        
        
            
                D3.interpolateBrBG(0.9)
            
        
        
            
                D3.interpolateBrBG(0.1)
            
        
        
            
                D3.interpolateBrBG(0.2)
            
        
        
            
                D3.interpolateBrBG(0.5)
            
        
        
        
        
        
        
        
        
        
        
        
            // 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;
        
    

输出：