The d3.interpolateBlues() function in d3.js is used to return an RGB string of color that corresponds to the sequential color scheme of “Blues”.
Syntax:
d3.interpolateBlues(t);
Parameters: This function takes only one parameter which is given above and described below:
- t: This is a number in the range of 0 and 1 inclusively.
Return Values: This function returns an RGB string of color.
Below given are a few examples of the above-given function.
Example 1:
<!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content=" width = device -width, initial-scale = 1 .0"> < title >Document</ title > </ head > < style > </ style > < body > <!--Fetching from CDN of D3.js --> < script src = </ script > < script src = </ script > < script src = </ script > < script src = </ script > < script > console.log(d3.interpolateBlues(0)); console.log(d3.interpolateBlues(0.4)); console.log(d3.interpolateBlues(0.2)); console.log(d3.interpolateBlues(0.25)); console.log(d3.interpolateBlues(0.54)); console.log(d3.interpolateBlues(0.85)); console.log(d3.interpolateBlues(2)); console.log(d3.interpolateBlues(1)); </ script > </ body > </ html > |
Output:
Example 2:
<!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content=" width = device -width, initial-scale = 1 .0"> < title >Document</ title > </ head > < style > div{ padding:6px; text-align: center; vertical-align: middle; display: flex; justify-content: center; width: 90px; height: 50px; float: left; } </ style > < body > < h2 >D3.interpolateBlues() </ h2 > < div class = "box1" > < span > </ span > </ div > < div class = "box2" > < span > </ span > </ div > < div class = "box3" > < span > </ span > </ div > < div class = "box4" > < span > </ span > </ div > < div class = "box5" > < span > </ span > </ div > <!--Fetching from CDN of D3.js --> < script src = </ script > < script src = </ script > < script src = </ script > < script src = </ script > < script > // creating different colors for different // Values of t is 0.1 let color1= d3.interpolateBlues(0.1); // Values of t is 0.3 let color2= d3.interpolateBlues(0.3); // Values of t is 0.5 let color3= d3.interpolateBlues(0.5); // Values of t is 0.8 let color4= d3.interpolateBlues(0.8); // Values of t is 1.0 let color5= d3.interpolateBlues(1.0); // 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: