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: