D3.js 方案配对方法

D3.js中的d3.schemePaired方法用于返回一个包含 12 种分类颜色的数组，该数组以 RGB 十六进制字符串的形式返回。

句法：

d3.schemePaired

参数：此函数不接受任何参数。

返回值：返回一个 RGB 十六进制字符串。

示例 1：

HTML

 
 
 
     
     
    
     
    
     
    
     
    
    
 
  
 
    
    GeeksForGeeks
      
    D3.js schemePaired Method
      
     
        document.write(d3.schemePaired[0]+"<br>"); 
        document.write(d3.schemePaired[1]+"<br>");
        document.write(d3.schemePaired[2]+"<br>");
        document.write(d3.schemePaired[3]+"<br>");
        document.write(d3.schemePaired[4]+"<br>");
        document.write(d3.schemePaired[5]+"<br>");
        document.write(d3.schemePaired[6]+"<br>");
        document.write(d3.schemePaired[7]+"<br>");
        document.write(d3.schemePaired[8]+"<br>");
        document.write(d3.schemePaired[9]+"<br>");
        document.write(d3.schemePaired[10]+"<br>");
        document.write(d3.schemePaired[11]+"<br>");
     
    
 

输出：

示例 2：

HTML

 
 
 
     
    
       
    
     
    
     
    
     
    
     
   
     
        div { 
            padding: 3px; 
            width: fit-content; 
            height: 20px;
            width: 250px;
        } 
     

  
 
    
    GeeksForGeeks
      
    D3.js schemePaired Method
      
     
         
            D3.schemePaired[0] 
         
     
     
         
            D3.schemePaired[1]   
         
     
     
         
            D3.schemePaired[2] 
         
     
     
         
            D3.schemePaired[3]  
         
     
     
         
            D3.schemePaired[4] 
         
     
     
         
            D3.schemePaired[5]  
         
     
     
         
            D3.schemePaired[6]  
         
     
     
         
            D3.schemePaired[7] 
         
     
     
         
            D3.schemePaired[8] 
         
     
     
         
            D3.schemePaired[9] 
         
     
     
         
            D3.schemePaired[10] 
         
     
     
         
            D3.schemePaired[11] 
         
     
     
        // Array of colors is given 
        let color1 = d3.schemePaired[0]; 
        let color2 = d3.schemePaired[1]; 
        let color3 = d3.schemePaired[2]; 
        let color4 = d3.schemePaired[3]; 
        let color5 = d3.schemePaired[4]; 
        let color6 = d3.schemePaired[5];
        let color7 = d3.schemePaired[6]; 
        let color8 = d3.schemePaired[7];
        let color9 = d3.schemePaired[8]; 
        let color10 = d3.schemePaired[9];
        let color11 = d3.schemePaired[10]; 
        let color12 = d3.schemePaired[11];
  
        let b1 = document.querySelector(".b1"); 
        let b2 = document.querySelector(".b2"); 
        let b3 = document.querySelector(".b3"); 
        let b4 = document.querySelector(".b4"); 
        let b5 = document.querySelector(".b5"); 
        let b6 = document.querySelector(".b6"); 
        let b7 = document.querySelector(".b7"); 
        let b8 = document.querySelector(".b8");  
        let b9 = document.querySelector(".b9"); 
        let b10 = document.querySelector(".b10"); 
        let b11 = document.querySelector(".b11"); 
        let b12 = document.querySelector(".b12"); 
          
        b1.style.backgroundColor = color1; 
        b2.style.backgroundColor = color2;
        b3.style.backgroundColor = color3; 
        b4.style.backgroundColor = color4;
        b5.style.backgroundColor = color5; 
        b6.style.backgroundColor = color6;
        b7.style.backgroundColor = color7;
        b8.style.backgroundColor = color8; 
        b9.style.backgroundColor = color9; 
        b10.style.backgroundColor = color10;
        b11.style.backgroundColor = color11;
        b12.style.backgroundColor = color12; 
          
     
    
 

输出：