The d3.interpolateYlOrRd() function in d3.js is used to return an RGB string of color from the diverging color scheme of “YlOrRd”.
Syntax:
d3.interpolateYlOrRd(t);
Parameters: This function accepts a single parameter as mentioned above and described below:
- t: It is numeric value which ranges in [0,1].
Return Values: This function returns an RGB color string.
Below examples illustrate the D3.js interpolateYlOrRd() function in JavaScript:
Example1:
HTML
<!DOCTYPE html> < html lang = "en" >
< head >
< meta charset = "UTF-8" />
< meta
name = "viewport"
content=" width = device -width,
initial-scale = 1 .0"/>
< title >D3.js interpolateYlOrRd() Function</ title >
</ head >
< style ></ style >
< body >
<!--Fetching from CDN of D3.js -->
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
< script src =
"https://d3js.org/d3- scale-chromatic.v1.min.js" >
</ script >
< script >
console.log(d3.interpolateYlOrRd(0.14));
console.log(d3.interpolateYlOrRd(0.4));
console.log(d3.interpolateYlOrRd(0.2));
console.log(d3.interpolateYlOrRd(0.25));
console.log(d3.interpolateYlOrRd(0.54));
console.log(d3.interpolateYlOrRd(0.85));
console.log(d3.interpolateYlOrRd(2));
console.log(d3.interpolateYlOrRd(1));
</ 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"/>
< 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.interpolateYlOrRd()</ 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.interpolateYlOrRd(0.1);
// Values of t is 0.3
let color2 = d3.interpolateYlOrRd(0.3);
// Values of t is 0.5
let color3 = d3.interpolateYlOrRd(0.5);
// Values of t is 0.8
let color4 = d3.interpolateYlOrRd(0.8);
// Values of t is 1.0
let color5 = d3.interpolateYlOrRd(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: