我試圖讓資料標簽顯示在堆積條形圖的每個條形內部。當我查看源代碼時，我可以看到<text>每個欄中的元素具有正確的編號，但它們在欄中不可見
<!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>
<div id="legend"></div>
<style>
</style>
<script>
// set the dimensions and margins of the graph
var margin = { top: 10, right: 30, bottom: 20, left: 50 },
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 ")");
// Parse the Data
d3.csv("https://raw.githubusercontent.com/JakeRatliff/dh-valve-data/main/Valves Data - Sheet1.csv", function(data) {
// List of subgroups = header of the csv files = soil condition here
var subgroups = data.columns.slice(1)
subgroups.pop()
console.log(subgroups)
// List of groups = species here = value of the first column called group -> I show them on the X axis
var groups = d3.map(data, function(d) { return (d.Year) }).keys()
console.log(groups)
// Add X axis
var x = d3.scaleBand()
.domain(groups)
.range([0, width])
.padding([0.2])
svg.append("g")
.attr("transform", "translate(0," height ")")
.call(d3.axisBottom(x).tickSizeOuter(0));
// Add Y axis
var y = d3.scaleLinear()
//.domain([0, 60])
.domain([0, d3.max(data, function(d) { return d.Total; })])
.range([height, 0]);
svg.append("g")
.call(d3.axisLeft(y));
// color palette = one color per subgroup
var color = d3.scaleOrdinal()
.domain(subgroups)
.range(['#00539B', '#E0750B'])
//stack the data? --> stack per subgroup
var stackedData = d3.stack()
.keys(subgroups)
(data)
// Show the bars
svg.append("g")
.selectAll("g")
// Enter in the stack data = loop key per key = group per group
.data(stackedData)
.enter().append("g")
.attr("fill", function(d) { return color(d.key); })
.selectAll("rect")
// enter a second time = loop subgroup per subgroup to add all rectangles
.data(function(d) { return d; })
.enter().append("rect")
.attr("x", function(d) { return x(d.data.Year); })
.attr("y", function(d) { return y(d[1]); })
.attr("height", function(d) { return y(d[0]) - y(d[1]); })
.attr("width", x.bandwidth())
.attr("class", "bar")
.append("text")
.attr("x", function(d) { return x(d.data.Year); })
.attr("y", function(d) { return y(d[1]); })
.text(function(d) { return d[1] })
})
</script>
如果首選，這里有一個代碼筆：https ://codepen.io/jake2134/pen/QWMQJOB
在此先感謝您的幫助。我已經谷歌了，但結果似乎已經過時了。
uj5u.com熱心網友回復：
使用變數創建一個組，然后向其追加兩次。
var bar_groups = svg.append("g")
.selectAll("g")
// Enter in the stack data = loop key per key = group per group
.data(stackedData)
.enter().append("g")
.attr("fill", function(d) { return color(d.key); })
var bars = bar_groups.selectAll("g")
// enter a second time = loop subgroup per subgroup to add all rectangles
.data(function(d) { return d; })
.enter().append("g")
bars.append('rect')
.attr("x", function(d) { return x(d.data.Year); })
.attr("y", function(d) { return y(d[1]); })
.attr("height", function(d) { return y(d[0]) - y(d[1]); })
.attr("width", x.bandwidth())
.attr("class", "bar")
bars.append("text")
.attr("x", function(d) { return x(d.data.Year); })
.attr("y", function(d) { return y(d[1]); })
.text(function(d) { return d[1] })
轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/367899.html
標籤：javascript d3.js