La función d3.interpolateYlOrRd() en d3.js se usa para devolver una string de color RGB del esquema de color divergente de «YlOrRd».
Sintaxis:
d3.interpolateYlOrRd(t);
Parámetros: esta función acepta un solo parámetro como se mencionó anteriormente y se describe a continuación:
- t: Es un valor numérico que oscila en [0,1].
Valores devueltos: esta función devuelve una string de color RGB.
Los siguientes ejemplos ilustran la función D3.js interpolateYlOrRd() en JavaScript:
Ejemplo 1:
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= "https://d3js.org/d3.v4.min.js"> </script> <script src= "https://d3js.org/d3-color.v1.min.js"> </script> <script src= "https://d3js.org/d3-interpolate.v1.min.js"> </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>
Producción:
Ejemplo 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=
"https://d3js.org/d3.v4.min.js">
</script>
<script src=
"https://d3js.org/d3-color.v1.min.js">
</script>
<script src=
"https://d3js.org/d3-interpolate.v1.min.js">
</script>
<script src=
"https://d3js.org/d3-scale-chromatic.v1.min.js">
</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>
Producción:
