Axis formats based on width

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forked from ritchieking's block: fresh block

forked from ritchieking's block: Axis formats based on width

<!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 src="https://d3js.org/d3-time.v0.2.min.js"></script>
<script src="https://d3js.org/d3-time-format.v0.3.min.js"></script>
<script>

Object.assign(d3, d3_time_format);
Object.assign(d3, d3_time);
  
var formatMillisecond = {long: ".%L",   short: ".%L"},
    formatSecond      = {long: ":%S",   short: ":%S"},
    formatMinute      = {long: "%I:%M", short: "%I:%M"},
    formatHour        = {long: "%I %p", short: "%I %p"},
    formatDay         = {long: "%a %d", short: "%a %d"},
    formatWeek        = {long: "%b %d", short: "%b %d"},
    formatMonth       = {long: "%B",    short: "%b"},
    formatYear        = {long: "%Y",    short: "'%y"};

function multiFormat (size) {
  return function (date) {
    return (d3.timeSecond(date) < date ? d3.timeFormat(formatMillisecond[size])
        : d3.timeMinute(date) < date ? d3.timeFormat(formatSecond[size])
        : d3.timeHour(date) < date ? d3.timeFormat(formatMinute[size])
        : d3.timeDay(date) < date ? d3.timeFormat(formatHour[size])
        : d3.timeMonth(date) < date ? (d3.timeWeek(date) < date ? d3.timeFormat(formatDay[size]) : d3.timeFormat(formatWeek[size]))
        : d3.timeYear(date) < date ? d3.timeFormat(formatMonth[size])
        : d3.timeFormat(formatYear[size]))(date);
  }
}

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(multiFormat('short'));

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 + ")");

var axis = svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(xAxis);

</script>

https://d3js.org/d3.v3.min.js

https://d3js.org/d3-time.v0.2.min.js

https://d3js.org/d3-time-format.v0.3.min.js