Thursday, April 2, 2026
HomeLanguagesJavascriptD3.js curveBasis() method

D3.js curveBasis() method

The basis curve interpolator produces cubic basis splines where the points provided to the generators are used as control points. There is a curve in the line based on the cubic splines. 

Syntax:

d3.curveBasis()

Parameters: This method takes no parameters

Return Value: This method returns nothing.

Example 1: 

HTML




<!DOCTYPE html>
<html>
<meta charset="utf-8">
  
<head>
    <script src=
    </script>
</head>
  
<body>
    <h1 style="text-align:center; color:green;">
        neveropen
    </h1>
  
    <center>
        <svg id="gfg" width="200" height="200"></svg>
    </center>
      
    <script>
        var data = [
            { x: 0, y: 0 },
            { x: 1, y: 3 },
            { x: 2, y: 15 },
            { x: 5, y: 15 },
            { x: 6, y: 1 },
            { x: 7, y: 5 },
            { x: 8, y: 1 }];
  
        var xScale = d3.scaleLinear()
            .domain([0, 8]).range([25, 175]);
        var yScale = d3.scaleLinear()
            .domain([0, 20]).range([175, 25]);
  
        var line = d3.line()
            .x((d) => xScale(d.x))
            .y((d) => yScale(d.y))
            // curveBasis is used
            .curve(d3.curveBasis);
  
        d3.select("#gfg")
            .append("path")
            .attr("d", line(data))
            .attr("fill", "none")
            .attr("stroke", "green");
    </script>
</body>
  
</html>


Output:

Example 2:

HTML




<!DOCTYPE html>
<html>
<meta charset="utf-8">
  
<head>
    <script src=
    </script>
</head>
  
<body>
    <h1 style="text-align:center; color:green;">
        neveropen
    </h1>
      
    <center>
        <svg id="gfg" width="200" height="200"></svg>
    </center>
      
    <script>
        var points = [
            { xpoint: 25, ypoint: 150 },
            { xpoint: 75, ypoint: 85 },
            { xpoint: 100, ypoint: 115 },
            { xpoint: 175, ypoint: 25 }];
  
        var Gen = d3.line()
            .x((p) => p.xpoint)
            .y((p) => p.ypoint)
            .curve(d3.curveBasis);
  
        d3.select("#gfg")
            .append("path")
            .attr("d", Gen(points))
            .attr("fill", "none")
            .attr("stroke", "green");
    </script>
</body>
  
</html>


Output:

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
RELATED ARTICLES

Most Popular

Dominic
32512 POSTS0 COMMENTS
Milvus
131 POSTS0 COMMENTS
Nango Kala
6885 POSTS0 COMMENTS
Nicole Veronica
12006 POSTS0 COMMENTS
Nokonwaba Nkukhwana
12100 POSTS0 COMMENTS
Shaida Kate Naidoo
7015 POSTS0 COMMENTS
Ted Musemwa
7259 POSTS0 COMMENTS
Thapelo Manthata
6971 POSTS0 COMMENTS
Umr Jansen
6960 POSTS0 COMMENTS