我正在制作D3.js中的图表，但我需要专家帮助如何将数据"来源"图表下方的标题和一个小图像/标志。
这是代码:
<!DOCTYPE html>
<meta charset="utf-8">
<!-- Load d3.js -->
<script src="https://d3js.org/d3.v4.js"></script>
<!-- Create a div where the graph will take place -->
<div id="my_dataviz"></div>
<script>
// set the dimensions and margins of the graph
var margin = {top: 20, right: 30, bottom: 40, left: 90},
width = 460 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
// append the svg object to the body of the page
var svg = d3.select("#my_dataviz")
.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 + ")");
// csv data
d3.csv("XYZ.csv", function(data) {
// Add X axis
var x = d3.scaleLinear()
.domain([0, 100])
.range([ 0, width]);
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x).tickFormat(function(d){
return "$" + d;
}).ticks(10))
.selectAll("text")
.attr("transform", "translate(-10,0)rotate(-45)")
.style("text-anchor", "end");
// Y axis
var y = d3.scaleBand()
.range([ 0, height ])
.domain(data.map(function(d) { return d.country; }))
.padding(.1);
svg.append("g")
.call(d3.axisLeft(y))
//Bars
svg.selectAll("myRect")
.data(data)
.enter()
.append("rect")
.attr("x", x(0) )
.attr("y", function(d) { return y(d.country); })
.attr("width", function(d) { return x(d.price); })
.attr("height", y.bandwidth() )
.attr("fill", "red")
})
</script>
CSV文件中的数据点如下:CSV文件数据点有两列"country"one_answers"price">
你能帮我吗?
谢谢!
只需将图像和标题添加为常规HTML。你的HTML看起来像这样:
<div id="my-dataviz">
<img src="imagefile.jpg">
<svg/>
<p class="caption">Your caption</p>
</div>
var svg = d3.select("#my_dataviz svg")