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:
