<link rel="stylesheet" type="text/css" href="http://dc-js.github.io/dc.js/css/dc.css" />
<div>
<p>When filtering items in a crossfilter data set with dc.js, items are filtered using an || filter. For example, if you click "Mr. A" and "Mr. B" on the row chart, all the items that have "Mr. A" || "Mr. B" with be selected. But in the case of items grouped by tags, we want an && filtering. So we use the crossfilter dimension.filterFunction with dynamically created filter functions to create this effect.</p>
</div>
<div id="tags">
<label>
<input type="checkbox" id="tag1" class="tags" checked/>Tag 1</label>
<label>
<input type="checkbox" id="tag2" class="tags" checked/>Tag 2</label>
<label>
<input type="checkbox" id="tag3" class="tags" checked/>Tag 3</label>
<a href="#" id="selectAll">Select All</a>
<a href="#" id="deselectAll">Deselect All</a>
</div>
<div id="chart-ring-year"></div>
<div id="chart-row-spenders"></div>
<script type="text/javascript" src="http://dc-js.github.io/dc.js/js/d3.js"></script>
<script type="text/javascript" src="http://dc-js.github.io/dc.js/js/crossfilter.js"></script>
<script type="text/javascript" src="http://dc-js.github.io/dc.js/js/dc.js"></script>
<script type="text/javascript" src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
CSS
p {
font-size: 12px;
}
#tags {
margin-bottom:10px;
}
JavaScript
function toggleArrayItem(a, v) {
var i = a.indexOf(v);
if (i === -1) a.push(v);
else a.splice(i, 1);
}
function createFilter(filters) {
return function (d) {
for (var i = 0, len = filters.length; i < len; i++) {
if ($.inArray(filters[i], d) == -1) return false;
}
return true;
}
}
$('#tag1').click(function () {
toggleArrayItem(filter_list, 'tag1');
tags.filterAll();
tags.filterFunction(createFilter(filter_list));
dc.redrawAll();
});
$('#tag2').click(function () {
$(this).toggleClass('active');
toggleArrayItem(filter_list, 'tag2');
tags.filterAll();
tags.filterFunction(createFilter(filter_list));
dc.redrawAll();
});
$('#tag3').click(function () {
$(this).toggleClass('active');
toggleArrayItem(filter_list, 'tag3');
tags.filterAll();
tags.filterFunction(createFilter(filter_list));
dc.redrawAll();
});
d3.select("#selectAll").on("click", function () {
d3.selectAll('.tags').property('checked', true);
tags.filterAll();
dc.redrawAll();
console.log("selectAll")
})
d3.select("#deselectAll").on("click", function () {
d3.selectAll('.tags').property('checked', false);
tags.filterAll();
tags.filterFunction(createFilter([]));
dc.redrawAll();
console.log("deselectAll")
})
var yearRingChart = dc.pieChart("#chart-ring-year"),
spenderRowChart = dc.rowChart("#chart-row-spenders"),
filter_list = [],
spendData = [{
Name: 'Mr A',
Spent: 40,
Year: 2011,
"tags": ["tag1", "tag2"]
}, {
Name: 'Mr B',
Spent: 10,
Year: 2011,
"tags": ["tag1", "tag2"]
}, {
Name: 'Mr C',
Spent: 40,
Year: 2011,
"tags": ["tag2"]
},...
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