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D3.js continuous.domain() Function

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The continuous.domain() function is used to set the scale’s domain to the specified array of numbers. The array specified here contains two or more than two elements in it.

Syntax:

continuous.domain([domain]);

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

  • [domain]: This is an array that takes two or more values that specify the domain.

Return Values: This function does not return anything. 

Below examples illustrate the D3.js continuous.domain() function in JavaScript:

Example 1:

HTML




<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <meta name="viewport"
        path1tent="width=device-width,
        initial-scale=1.0"/>
    <script src=
    </script>
    <script src=
    </script>
    <script src=
    </script>
    <script src=
    </script>
</head>
<body style="text-align: center;">
    <h2 style="color: green;">
        Geeksforgeeks
    </h2>
     
     
<p>D3.js continuous.domain() Function </p>
 
 
    <script>
    var object = d3.scaleLinear()
                // Domain ranges 0 to 1
                    .domain([0, 1])
                    .range(["red", "green"]);
    document.write("<br/>")
    document.write("<h4>"+object(0)+"</h4>");
    document.write("<h4>"+object(1)+"</h4>");
    </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"/>
    </head>
    <style>
        div {
            padding: 6px;
            text-align: center;
            vertical-align: middle;
            display: flex;
            justify-content: center;
            color: White;
            width: fit-content;
            margin-top: 2px;
            height: 20px;
        }
    </style>
    <body>
        <h2 style="color: green;">
            GeeksforGeeks
        </h2>
         
<p>D3.js continuous.domain()</p>
 
        <div class="box1">
            <span>continuous(0.5)</span>
        </div>
        <div class="box2">
            <span>continuous(0.4)</span>
        </div>
        <div class="box3">
            <span>continuous(0.3)</span>
        </div>
        <div class="box4">
            <span>continuous(0.2)</span>
        </div>
        <div class="box5">
            <span>continuous(0.1)</span>
        </div>
        <!--Fetching from CDN of D3.js -->
        <script src=
         </script>
        <script src=
         </script>
        <script src=
         </script>
        <script src=
         </script>
        <script>
            var continuous = d3
                .scaleLinear()
                // Domain ranges 0 to 1
                .domain([-2, -1, 0, 1, 2])
                .range(["Blue", "green", "orange",
                        "Red", "black"]);
            let color1 = continuous(-2);
            let color2 = continuous(-1.5);
            let color3 = continuous(0);
            let color4 = continuous(1.5);
            let color5 = continuous(2);
 
            // Selecting Div using query selector
            let box1 = document.querySelector(".box1");
            let box2 = document.querySelector(".box2");
            let box3 = document.querySelector(".box3");
            let box4 = document.querySelector(".box4");
            let box5 = document.querySelector(".box5");
 
            // Setting style and BG color of
            // the particular DIVs
            box1.style.backgroundColor = color1;
            box2.style.backgroundColor = color2;
            box3.style.backgroundColor = color3;
            box4.style.backgroundColor = color4;
            box5.style.backgroundColor = color5;
        </script>
    </body>
</html>


Output:



Last Updated : 21 Jun, 2022
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