我如何让 d3 将“Tue 20”放在“Wed 21”的左侧？
http://jsfiddle.net/robdodson/KWRxW/
var data = [
{"date":"2012-03-20","total":3},
{"date":"2012-03-21","total":8},
{"date":"2012-03-22","total":2},
{"date":"2012-03-23","total":10},
{"date":"2012-03-24","total":3},
{"date":"2012-03-25","total":20},
{"date":"2012-03-26","total":12}
];
var margin = {top: 40, right: 40, bottom: 40, left:40},
width = 600,
height = 500;
var x = d3.time.scale()
.domain([
new Date(data[0].date),
d3.time.day.offset(new Date(data[data.length - 1].date), 1)
])
.rangeRound([0, width - margin.left - margin.right]);
var y = d3.scale.linear()
.domain([0, d3.max(data, function(d) { return d.total; })])
.range([height - margin.top - margin.bottom, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient('bottom')
.ticks(d3.time.days, 1)
.tickFormat(d3.time.format('%a %d'))
.tickSize(0)
.tickPadding(8);
var yAxis = d3.svg.axis()
.scale(y)
.orient('left')
.tickPadding(8);
var svg = d3.select('body').append('svg')
.attr('class', 'chart')
.attr('width', width)
.attr('height', height)
.append('g')
.attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')');
svg.selectAll('.chart')
.data(data)
.enter()
.append('rect')
.attr('class', 'bar')
.attr('x', function(d) { return x(new Date(d.date)); })
.attr('y', function(d) {
return height - margin.top - margin.bottom -
(height - margin.top - margin.bottom - y(d.total))
})
.attr('width', 10)
.attr('height', function(d) {
return height - margin.top - margin.bottom - y(d.total)
});
svg.append('g')
.attr('class', 'x axis')
.attr('transform', 'translate(0, ' + (height - margin.top - margin.bottom) + ')')
.call(xAxis);
svg.append('g')
.attr('class', 'y axis')
.call(yAxis);