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D3.js interpolatePiYG() Function

Last Updated : 17 Aug, 2020
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The d3.interpolatePiYG() function in D3.js is a diverging color scheme available as a continuous interpolator that returns the corresponding color from the PiYG diverging color scheme.

Syntax:

d3.interpolatePiYG(t);

Parameters: This function accepts a single parameter as mentioned above and described below.

  • t: It is number in a range [0,1].

Return Values: This function returns an RGB string.

Below given are a few examples of the function given above.

Example1:

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 interpolatePiYG() 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.interpolatePiYG(0));
            console.log(d3.interpolatePiYG(0.1));
            console.log(d3.interpolatePiYG(0.2));
            console.log(d3.interpolatePiYG(0.3));
            console.log(d3.interpolatePiYG(0.4));
            console.log(d3.interpolatePiYG(0.5));
            console.log(d3.interpolatePiYG(0.6));
            console.log(d3.interpolatePiYG(0.7));
            console.log(d3.interpolatePiYG(0.8));
            console.log(d3.interpolatePiYG(0.9));
            console.log(d3.interpolatePiYG(1.0));
        </script>
    </body>
</html> 






                        










Output:




Example 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 interpolatePiYG() Function</title> 


    </head> 


    <style> 


        div { 


            padding: 10px; 


            width: fit-content; 


            height: 100px; 


            float: left; 


        } 


    </style> 


    <body> 


        D3.interpolatePiYG() 


        <br /> 


        <br /> 


        <div class="b1"> 


            <span> 


                (0.1) 


            </span> 


        </div> 


        <div class="b2"> 


            <span> 


                (0.2) 


            </span> 


        </div> 


        <div class="b3"> 


            <span> 


                (0.3) 


            </span> 


        </div> 


        <div class="b4"> 


            <span> 


                (0.4) 


            </span> 


        </div> 


        <div class="b5"> 


            <span> 


                (0.5) 


            </span> 


        </div> 


        <div class="b6"> 


            <span> 


                (0.6) 


            </span> 


        </div> 


        <div class="b7"> 


            <span> 


                (0.7) 


            </span> 


        </div> 


        <div class="b8"> 


            <span> 


                (0.8) 


            </span> 


        </div> 


        <div class="b9"> 


            <span> 


                (0.9) 


            </span> 


        </div> 


        <div class="b10"> 


            <span> 


                (1.0) 


            </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.interpolatePiYG(0.1); 


  


            let color2 = d3.interpolatePiYG(0.2); 


            let color3 = d3.interpolatePiYG(0.3); 


            let color4 = d3.interpolatePiYG(0.4); 


            let color5 = d3.interpolatePiYG(0.5); 


            let color6 = d3.interpolatePiYG(0.6); 


            let color7 = d3.interpolatePiYG(0.7); 


            let color8 = d3.interpolatePiYG(0.8); 


            let color9 = d3.interpolatePiYG(0.9); 


            let color10 = d3.interpolatePiYG(1.0); 


  


            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"); 


            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; 


        </script> 


    </body> 


</html> 



















                        







                        










Output:




                                 


                            

                                

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