我的图表的值范围从10到70000.由于70000太大,因此在图表中看不到小值,并且在悬停在其上时无法查看其标签。是否可以显示所有标签,而无需悬停或任何更好的解决方案。小提琴:https://jsfiddle.net/Sanal_5/e6zdk6jt/4/
[https://jsfiddle.net/Sanal_5/e6zdk6jt/4/][1]
答案 0 :(得分:3)
您可以通过在创建的图表上调用generateLegend
来绘制饼图的图例,并添加事件侦听以在图例中悬停时突出显示该段
$(function() {
var pieChartCanvas = $("#pieChart").get(0).getContext("2d");
var PieData = [{
value: 70000,
color: "#f56954",
highlight: "#f56954",
label: "Chrome"
}, {
value: 6000,
color: "#00a65a",
highlight: "#00a65a",
label: "IE"
}, {
value: 4000,
color: "#f39c12",
highlight: "#f39c12",
label: "FireFox"
}, {
value: 4000,
color: "#00c0ef",
highlight: "#00c0ef",
label: "Safari"
}, {
value: 3000,
color: "#3c8dbc",
highlight: "#3c8dbc",
label: "Opera"
}, {
value: 10,
color: "#d2d6de",
highlight: "#d2d6de",
label: "Navigator"
}];
var pieOptions = {
segmentShowStroke: true,
segmentStrokeColor: "#fff",
segmentStrokeWidth: 2,
percentageInnerCutout: 50,
animationSteps: 100,
animationEasing: "easeOutBounce",
animateRotate: true,
animateScale: false,
responsive: true,
maintainAspectRatio: true
};
var pieChart = new Chart(pieChartCanvas).Doughnut(PieData, pieOptions);
var helpers = Chart.helpers;
var legendHolder = document.getElementById('graph-legend');
legendHolder.innerHTML = pieChart.generateLegend();
// Include a html legend template after the module doughnut itself
helpers.each(legendHolder.firstChild.childNodes, function(legendNode, index) {
helpers.addEvent(legendNode, 'mouseover', function() {
var activeSegment = pieChart.segments[index];
activeSegment.save();
pieChart.showTooltip([activeSegment]);
activeSegment.restore();
});
});
helpers.addEvent(legendHolder.firstChild, 'mouseout', function() {
pieChart.draw();
});
document.getElementById('graph-legend').appendChild(legendHolder.firstChild);
});
.box-body,
#graph-legend {
width: 50%;
float: left
}
#graph-legend ul {
list-style: none;
}
#graph-legend ul li {
display: block;
padding-left: 30px;
position: relative;
margin-bottom: 4px;
border-radius: 5px;
padding: 2px 8px 2px 28px;
font-size: 14px;
cursor: default;
-webkit-transition: background-color 200ms ease-in-out;
-moz-transition: background-color 200ms ease-in-out;
-o-transition: background-color 200ms ease-in-out;
transition: background-color 200ms ease-in-out;
}
#graph-legend li span {
display: block;
position: absolute;
left: 0;
top: 0;
width: 20px;
height: 100%;
border-radius: 5px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/1.0.2/Chart.js"></script>
<div class="box-body">
<canvas id="pieChart" width="787" height="300"></canvas>
</div>
<div id="graph-legend"></div>