D3.js scalePow() Function

Last Updated : 26 Aug, 2020

The d3.scalePow() function is used to create and return a new continuous scale. This scale has a specified domain and range. Generally, it acts as a linear scale but when used with exponent it works in a different way.

Syntax:

d3.scalePow([[domain, ]range]);

Parameters: This function accepts two parameters as mentioned above and described below.

domain: This parameter always accepts two or more than two numbers.
range: This parameter accepts a number or a string array.

Return Values: This function does not return anything.

Below examples illustrate the scalePow() function in D3.js:

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="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> </head> <body> <h2 style="color:green;">Geeks for geeks</h2> <p>d3.scalePow() Function </p> <script>  var pow = d3.scalePow()  .domain([0, 1])  .range([1, 2, 3, 4, 5, 6]);  document.write("<h3> pow(1): "  + pow(1) + "</h3>");  document.write("<h3>pow(2): "   + pow(2) + "</h3>");  document.write("<h3>pow(3): "   + pow(3) + "</h3>");  </script> </body> </html>

Output:

Example 2:

HTML

<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" path1tent= "width=device-width,initial-scale=1.0"/> <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> </head> <body> <h2 style="color:green;">Geeks for geeks</h2> <p>d3.scalePow() Function </p> <script>  var pow = d3.scalePow()  .domain([0, 1])  .range([1, 2, 3, 4, 5, 6])  .exponent(4);  document.write("<h3> pow(1): "  + pow(1) + "</h3>");  document.write("<h3>pow(2): "   + pow(2) + "</h3>");  document.write("<h3>pow(3): "   + pow(3) + "</h3>");  </script> </body> </html>