D3.js threshold.invertExtent() Function
Last Updated :
24 Aug, 2020
The threshold.invertExtent() function in d3.js is used to return the extent of the values in the specified domain.
Syntax:
threshold.invertExtent(value);
Parameters: This function accepts a single parameter as given above and described below:
- value: This parameter takes a value from the given range.
Return Values: This function returns a value from the domain corresponding to the given input value.
Below given are a few examples of the function given above.
Example 1:
<!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;">Geeks for geeks</h2>
<p>threshold.invertExtent() Function </p>
<script>
var threshold = d3.scaleThreshold()
// Setting domain for the scale.
.domain([1, 2, 3, 4])
.range(["red", "green", "blue"]);
let val1=threshold.invertExtent("green");
let val2=threshold.invertExtent("blue");
document.write("<h4>["+val1+"]</h4>");
document.write("<h4>["+val2+"]</h4>");
</script>
</body>
</html>
|
Output:
Example 2:
<!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;">Geeks for geeks</h2>
<p>threshold.invertExtent() Function </p>
<script>
var threshold = d3.scaleThreshold()
// Setting domain for the scale.
.domain([1, 2, 3, 4])
.range([10, 20, 30, 40, 50]);
let val1=threshold.invertExtent(10);
let val2=threshold.invertExtent(50);
let val3=threshold.invertExtent(20);
document.write("<h4>["+val1+"]</h4>");
document.write("<h4>["+val2+"]</h4>");
document.write("<h4>["+val3+"]</h4>");
</script>
</body>
</html>
|
Output:
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