我用长y轴标签(温度范围)绘制数据。如何调整标签,使它们在旋转90度时位于刻度中心,而不会偏离图形的边缘?我尝试使用this.getBBox()来应用基于标签迭代的转换,但这似乎不起作用。
谢谢!
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.axis text {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 100, right: 100, bottom: 100, left: 100},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var categories = {
temperature: ["29-30°C - Red","31-33° C - Green","> 33° C - Blue"],
sleep: ["7 - 8 hours", "5 - 6 hours", "4 or less hours"]
}
var mindate = new Date(2012,0,1),
maxdate = new Date(2012,0,31);
var xScale = d3.time.scale()
.domain([mindate, maxdate]) // values between for month of january
.range([0, width - margin.right]);
var xAxis = d3.svg.axis()
.orient("bottom")
.scale(xScale);
var yKey = "temperature";
var yScale = d3.scale.ordinal()
.domain(categories[yKey])
.rangePoints([0, height]);
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left");
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);
svg.append("g")
.attr("class", "yAxis axis")
.call(yAxis)
.selectAll("text")
.attr("x", 10)
.attr("y",20)
.attr("transform", "rotate(90)")
.style("text-anchor", "start")
</script>
这是我尝试过的,但这似乎没有移动标签太多。我不确定如何在不使用翻译的情况下设置以下函数中的"x"。
d3.selectAll(".yAxis text")
.attr("transform", function(d,i) {
return "translate(" + -20 + "," + ((this.getBBox().width/(i+2))) + ")rotate(-90)"
})
啊哈!答案是d3.scale。序数有一个内边距设置,所以我要做的就是把yScale改成
var yScale = d3.scale.ordinal()
.domain(categories[yKey])
.rangePoints([0, height],1);
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.axis text {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 100, right: 100, bottom: 100, left: 100},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var categories = {
temperature: ["29-30°C - Red","31-33° C - Green","> 33° C - Blue"],
sleep: ["7 - 8 hours", "5 - 6 hours", "4 or less hours"]
}
var mindate = new Date(2012,0,1),
maxdate = new Date(2012,0,31);
var xScale = d3.time.scale()
.domain([mindate, maxdate]) // values between for month of january
.range([0, width - margin.right]);
var xAxis = d3.svg.axis()
.orient("bottom")
.scale(xScale);
var yKey = "temperature";
var yScale = d3.scale.ordinal()
.domain(categories[yKey])
.rangePoints([0, height],1);
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left");
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);
svg.append("g")
.attr("class", "yAxis axis")
.call(yAxis)
.selectAll("text")
.attr("x", 10)
.attr("y",20)
.attr("transform", "rotate(90)")
.style("text-anchor", "middle")
</script>