The d3.schemeRdGy[] function is used to return a HEX color code string which corresponds to the color from “RdGy” diverging color scheme in d3.js.
Syntax:
d3.schemeRdGy[k];
Parameters: This function accepts a single parameter as mentioned above and described below:
- k: This is a number between 3 and 10 both inclusive.
Return Values: This function returns a color string which is in HEX data format.
Below examples illustrate the D3.js schemeRdGy[] 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 >
< h2 style = "color: green;" >Geeksforgeeks</ h2 >
< p >D3.js schemeRdGy[] Function</ p >
< script >
document.write("
< p >< b >"
+d3.schemeRdGy[10][9]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][5]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][4]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][3]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][2]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][1]+"</ p >
</ b >");
document.write("
< p >< b >"
+d3.schemeRdGy[10][0]+"</ p >
</ b >");
</ 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;
color: white;
text-align: center;
vertical-align: middle;
display: flex;
justify-content: center;
width: fit-content;
margin-top: 2px;
height: 20px;
}
</ style >
< body >
< h2 style = "color: green;" >
Geeksforgeeks
</ h2 >
< p >D3.schemeRdGy[] Function</ p >
< div class = "box1" >
< span >d3.schemeRdGy[10][9]</ span >
</ div >
< div class = "box2" >
< span >d3.schemeRdGy[10][5]</ span >
</ div >
< div class = "box3" >
< span >d3.schemeRdGy[10][4]</ span >
</ div >
< div class = "box4" >
< span >d3.schemeRdGy[10][2]</ span >
</ div >
< div class = "box5" >
< span >d3.schemeRdGy[10][0]</ 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 value of k
let color1 = d3.schemeRdGy[9][5];
let color2 = d3.schemeRdGy[10][4];
let color3 = d3.schemeRdGy[9][3];
let color4 = d3.schemeRdGy[9][2];
let color5 = d3.schemeRdGy[9][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");
// 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: