JavaScript Charts: Pie chart with legend
<script type="text/javascript">
var chart;
var legend;
var chartData = [{
country: "Czech Republic",
litres: 156.90
}, {
country: "Ireland",
litres: 131.10
}, {
country: "Germany",
litres: 115.80
}, {
country: "Australia",
litres: 109.90
}, {
country: "Austria",
litres: 108.30
}, {
country: "UK",
litres: 65.00
}, {
country: "Belgium",
litres: 50.00
}];
AmCharts.ready(function () {
// PIE CHART
chart = new AmCharts.AmPieChart();
chart.dataProvider = chartData;
chart.titleField = "country";
chart.valueField = "litres";
// LEGEND
legend = new AmCharts.AmLegend();
legend.align = "center";
legend.markerType = "circle";
chart.addLegend(legend);
// WRITE
chart.write("chartdiv");
});
// changes label position (labelRadius)
function setLabelPosition() {
if (document.getElementById("rb1").checked) {
chart.labelRadius = 30;
chart.labelText = "[[title]]: [[value]]";
} else {
chart.labelRadius = -30;
chart.labelText = "[[percents]]%";
}
chart.validateNow();
}
// makes chart 2D/3D
function set3D() {
if (document.getElementById("rb3").checked) {
chart.depth3D = 10;
chart.angle = 10;
} else {
chart.depth3D = 0;
chart.angle = 0;
}
chart.validateNow();
}
// changes switch of the legend (x or v)
function setSwitch() {
if (document.getElementById("rb5").checked) {
legend.switchType = "x";
} else {
legend.switchType = "v";
}
legend.validateNow();
}
</script>
<div id="chartdiv" style="width: 100%; height: 400px;"></div>
<table align="center" cellspacing="20">
<tr>
<td>
<input type="radio" checked="true" name="group" id="rb1" onclick="setLabelPosition()">labels outside
<input type="radio" name="group" id="rb2" onclick="setLabelPosition()">labels inside</td>
<td>
<input type="radio" name="group2" id="rb3" onclick="set3D()">3D
<input type="radio" checked="true" name="group2" id="rb4" onclick="set3D()">2D</td>
<td>Legend switch type:
<input type="radio" checked="true" name="group3" id="rb5"
onclick="setSwitch()">x
<input type="radio" name="group3" id="rb6" onclick="setSwitch()">v</td>
</tr>
</table>
                                     Pie chart with legend
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