我试图在条形图中显示数据,其中需要在类别中显示可能的最大值。但是,当使用d3.js的tick()方法时,它会自动将刻度调整为数据集中的最大值。
所需的x轴刻度:
c1 -----------> 5
c2 ------> 3
1 2 3 4 5 6 7 8 9 10
答案 0 :(得分:5)
可以使用ticks
指定轴刻度线
var data = [{"closePriceDate":"Apr-8-2016","closePrice":93.24},{"closePriceDate":"Apr-9-2016","closePrice":95.35}];
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 500 - margin.left - margin.right,
height = 100 - margin.top - margin.bottom;
var formatDate = d3.time.format("%b-%e-%Y");
var x = d3.time.scale()
.domain(d3.extent(data, function(d) { return formatDate.parse(d.closePriceDate); }))
.range([0, width]);
var xAxis = d3.svg.axis()
.scale(x)
.ticks(4) //specify number of ticks
.orient("bottom");
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);
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
<script src="https://d3js.org/d3.v3.min.js"></script>