The continuous.domain() function is used to set the scale’s domain to the specified array of numbers. The array specified here contains two or more than two elements in it.
Syntax:
continuous.domain([domain]);
Parameters: This function accepts a single parameter as mentioned above and described below.
- [domain]: This is an array that takes two or more values that specify the domain.
Return Values: This function does not return anything.
Below examples illustrate the D3.js continuous.domain() function in JavaScript:
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 =
</ script >
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
</ head >
< body style = "text-align: center;" >
< h2 style = "color: green;" >
Geeksforgeeks
</ h2 >
< p >D3.js continuous.domain() Function </ p >
< script >
var object = d3.scaleLinear()
// Domain ranges 0 to 1
.domain([0, 1])
.range(["red", "green"]);
document.write("< br />")
document.write("< h4 >"+object(0)+"</ h4 >");
document.write("< h4 >"+object(1)+"</ h4 >");
</ 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"/>
</ head >
< style >
div {
padding: 6px;
text-align: center;
vertical-align: middle;
display: flex;
justify-content: center;
color: White;
width: fit-content;
margin-top: 2px;
height: 20px;
}
</ style >
< body >
< h2 style = "color: green;" >
GeeksforGeeks
</ h2 >
< p >D3.js continuous.domain()</ p >
< div class = "box1" >
< span >continuous(0.5)</ span >
</ div >
< div class = "box2" >
< span >continuous(0.4)</ span >
</ div >
< div class = "box3" >
< span >continuous(0.3)</ span >
</ div >
< div class = "box4" >
< span >continuous(0.2)</ span >
</ div >
< div class = "box5" >
< span >continuous(0.1)</ span >
</ div >
<!--Fetching from CDN of D3.js -->
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
< script src =
</ script >
< script >
var continuous = d3
.scaleLinear()
// Domain ranges 0 to 1
.domain([-2, -1, 0, 1, 2])
.range(["Blue", "green", "orange",
"Red", "black"]);
let color1 = continuous(-2);
let color2 = continuous(-1.5);
let color3 = continuous(0);
let color4 = continuous(1.5);
let color5 = continuous(2);
// 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: