The d3.interpolateRdPu() function in d3.js is used to return a color that corresponds to the sequential color scheme of “RdPu”. The color returned by this function is in the RGB format. This function sets a color range between red and purple. The values which are given lie between 0 and 1 both inclusive.
Syntax:
d3.interpolateRdPu(t);
Parameters: This function takes a single parameter as mentioned above and described below:
- t: This parameter take a number that lies in the range [0,1].
Return Values: This function returns a string of colors in RGB format.
Below given are a few examples of the function given above.
Example 1:
HTML
<html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!--Fetching from CDN of D3.js --> </script> </head> <body> <script> console.log(d3.interpolateRdPu(0.1)); console.log(d3.interpolateRdPu(0.2)); console.log(d3.interpolateRdPu(0.3)); console.log(d3.interpolateRdPu(0.4)); console.log(d3.interpolateRdPu(0.8)); console.log(d3.interpolateRdPu(0.9)); console.log(d3.interpolateRdPu(0.6)); console.log(d3.interpolateRdPu(0.254)); </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" /> <!--Fetching from CDN of D3.js --> </script> <style> div { padding: 5px; text-align: center; vertical-align: middle; display: flex; justify-content: center; width: fit-content; height: 50px; float: left; } </style> </head> <body> <h2>D3.interpolateRdPu()</h2> <div class="box1"> <span> (0.6) </span> </div> <div class="box2"> <span> (0.5) </span> </div> <div class="box3"> <span> (0.4) </span> </div> <div class="box4"> <span> (0.3) </span> </div> <div class="box5"> <span> (0.2) </span> </div> <div class="b6"> <span> (0.1) </span> </div> <script> // Creating different colors for different // Values of t as 0.6,0.5... let color1 = d3.interpolateRdPu(0.6); let color2 = d3.interpolateRdPu(0.5); let color3 = d3.interpolateRdPu(0.4); let color4 = d3.interpolateRdPu(0.3); let color5 = d3.interpolateRdPu(0.2); let color6 = d3.interpolateRdPu(0.1); // 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"); let b6 = document.querySelector(".b6"); // 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; b6.style.backgroundColor = color6; </script> </body> </html> |
Output:
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