我用 D3.js 创建了一个简单的条形图，代码如下
<!DOCTYPE html>
<html>
<head>
<title>Bar Transition Example</title>
<script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script>
</head>
<body>
<script type="text/javascript">
var margin = {top: 20, right: 20, bottom: 30, left: 60},
width = 300 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(5);
data = [{"label":"apples","value":6000},{"label":"pears","value":5000},{"label":"bananas","value":4000}]
function bars(data)
{
x.domain(data.map(function(d) { return d.label; }));
y.domain([0, d3.max(data, function(d) { return d.value; })]);
d3.select("svg").append('g')
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
d3.select("svg").append('g')
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".90em")
.style("text-anchor", "end");
bars = d3.select("svg").selectAll(".bar")
.data(data)
//enter
bars.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.label); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d.value); });
}
function init()
{
//setup the svg
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 + ")");
bars(data)
}
init();
</script>
</body>
</html>
但我的 Y 轴并不像我预期的那样可视化。的确，
Y轴被创建
我尝试调整所有参数(包括边距变量
var margin = {top: 20, right: 20, bottom: 30, left: 60},
width = 300 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
但没有效果。
最佳答案
您需要翻译将包含轴的组:
d3.select("svg").append('g')
.attr('transform', 'translate(' + [margin.left, margin.top] + ')')
.attr("class", "y axis")
.call(yAxis);
轴被绘制在 SVG 元素之外。您可能还想翻译另一组。问候，
关于javascript - Y 轴已创建但不可见，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25467487/