I am trying to make practice from an example below: enter link description here
The link above shows when I select 2011 in pie chart, the others are grayed out. But my code doesn't make it.
The example works perfectly as below:
My code below couldn't make unselected part of pie chart and bar grayed out like the example demonstrate:
<!DOCTYPE html>
<html lang="en">
<head>
<title>dc.js - Removing Empty Bars</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="https://gist.githubusercontent.com/kevinkraus92/cc5ac08b30c244e54e2c96bbe5fea110/raw/608ea6bc5564c9705a6b3c41281b5dddc84b8879/dc.css"/>
</head>
<body>
<div class="container">
<script type="text/javascript" src="https://raw.githubusercontent.com/dc-js/dc.js/develop/web-src/examples/header.js"></script>
<p>Example demonstrating using a "<a href="https://github.com/dc-js/dc.js/wiki/FAQ#fake-groups">Fake Group</a>" to remove
the empty bars of an ordinal bar chart when their values drop to zero.</p>
<p>(Note the use of <code><a href="https://dc-js.github.io/dc.js/docs/html/CoordinateGridMixin.html#elasticX">.elasticX(true)</a></code>
to force calculation of the X domain each round.)</p>
<div id="chart-ring-year"></div>
<div id="chart-hist-spend"></div>
<div id="chart-row-spenders"></div>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/d3/6.1.1/d3.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/dc/4.1.1/dc.js"></script>
<script type="text/javascript">
var yearRingChart = new dc.PieChart("#chart-ring-year"),
spendHistChart = new dc.BarChart("#chart-hist-spend"),
spenderRowChart = new dc.RowChart("#chart-row-spenders");
// use static or load via d3.csv("spendData.csv").then(function(spendData) {/* do stuff */});
var spendData = [
{Name: 'Mr A', Spent: '$40', Year: 2011},
{Name: 'Mr B', Spent: '$10', Year: 2011},
{Name: 'Mr C', Spent: '$40', Year: 2011},
{Name: 'Mr A', Spent: '$70', Year: 2012},
{Name: 'Mr B', Spent: '$20', Year: 2012},
{Name: 'Mr B', Spent: '$50', Year: 2013},
{Name: 'Mr C', Spent: '$30', Year: 2013}
];
// normalize/parse data
spendData.forEach(function(d) {
d.Spent = d.Spent.match(/\d+/);
});
function remove_empty_bins(source_group) {
return {
all:function () {
return source_group.all().filter(function(d) {
return d.value != 0;
});
}
};
}
// set crossfilter
var ndx = crossfilter(spendData),
yearDim = ndx.dimension(function(d) {return +d.Year;}),
spendDim = ndx.dimension(function(d) {return Math.floor(d.Spent/10);}),
nameDim = ndx.dimension(function(d) {return d.Name;}),
spendPerYear = yearDim.group().reduceSum(function(d) {return +d.Spent;}),
spendPerName = nameDim.group().reduceSum(function(d) {return +d.Spent;}),
spendHist = spendDim.group().reduceCount(),
nonEmptyHist = remove_empty_bins(spendHist)
yearRingChart
.width(200).height(200)
.dimension(yearDim)
.group(spendPerYear)
.innerRadius(50);
spendHistChart
.width(300).height(200)
.dimension(spendDim)
.group(nonEmptyHist)
.x(d3.scaleBand())
.xUnits(dc.units.ordinal)
.elasticX(true)
.elasticY(true);
spendHistChart.xAxis().tickFormat(function(d) {return d*10}); // convert back to base unit
spendHistChart.yAxis().ticks(2);
spenderRowChart
.width(350).height(200)
.dimension(nameDim)
.group(spendPerName)
.elasticX(true);
dc.renderAll();
</script>
</div>
</body>
</html>Any thoughts? Thank you.