The d3.axis.ticks() Function in D3.js is used to control which ticks are displayed by the axis. This function returns the axis generator
Syntax:
axis.ticks(arguments…) axis.ticks([count[, specifier]]) axis.ticks([interval[, specifier]])
Parameters: This function accepts the following parameters.
- count/interval: This parameter is used to display the number of ticks.
- specifier: This parameter is an optional format specifier to customize how the tick values are formatted.
Return Value: This function returns the axis generator.
Below programs illustrate the d3.axis.ticks() function in D3.js:
Example 1:
<!DOCTYPE html> <html>
<head>
<title>
D3.js | D3.axis.ticks() Function
</title>
<script type="text/javascript"
</script>
<style>
svg text {
fill: green;
font: 15px sans-serif;
text-anchor: center;
}
</style>
</head>
<body>
<script>
var width = 400, height = 400;
var svg = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height);
var xscale = d3.scaleLinear()
.domain([0, 10])
.range([0, width - 60]);
var x_axis = d3.axisBottom().scale(xscale).ticks(5);
var xAxisTranslate = height / 2;
svg.append("g")
.attr("transform", "translate(50, "
+ xAxisTranslate + ")")
.call(x_axis)
</script>
</body>
</html>
|
Output:
Example 2:
<!DOCTYPE html> <html>
<head>
<title>
D3.js | d3.axis.ticks() Function
</title>
<script type="text/javascript"
</script>
<style>
svg text {
fill: green;
font: 15px sans-serif;
text-anchor: end;
}
</style>
</head>
<body>
<script>
var width = 400, height = 400;
var svg = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height);
var yscale = d3.scaleLinear()
.domain([0, 1])
.range([height - 50, 0]);
var y_axis = d3.axisLeft().scale(yscale).ticks(3, "$.2f");
svg.append("g")
.attr("transform", "translate(100, 20)")
.call(y_axis)
</script>
</body>
</html>
|
Output: