The tick format provided by d3.time.scale is a multi-scale tick format, meaning that it formats times differently depending on the time. For example, the start of February is formatted as "February", while February second is formatted as "Feb 2". The format is implemented using an array of time formats, each with an associated filter. The first filter that returns true is used. (In the implementation below, the formats are processed in reverse order.) You can create your own custom multi-scale time format using d3.time.format.multi.
Last active
May 23, 2024 16:47
-
-
Save mbostock/4149176 to your computer and use it in GitHub Desktop.
Custom Time Format
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| license: gpl-3.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .axis text { | |
| font: 10px sans-serif; | |
| } | |
| .axis line, | |
| .axis path { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var customTimeFormat = d3.time.format.multi([ | |
| [".%L", function(d) { return d.getMilliseconds(); }], | |
| [":%S", function(d) { return d.getSeconds(); }], | |
| ["%I:%M", function(d) { return d.getMinutes(); }], | |
| ["%I %p", function(d) { return d.getHours(); }], | |
| ["%a %d", function(d) { return d.getDay() && d.getDate() != 1; }], | |
| ["%b %d", function(d) { return d.getDate() != 1; }], | |
| ["%B", function(d) { return d.getMonth(); }], | |
| ["%Y", function() { return true; }] | |
| ]); | |
| var margin = {top: 250, right: 40, bottom: 250, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var x = d3.time.scale() | |
| .domain([new Date(2012, 0, 1), new Date(2013, 0, 1)]) | |
| .range([0, width]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .tickFormat(customTimeFormat); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment