我正在使用Chart.js v2.6输出饼图。数据是从MySQL数据库获取的。该图表可以正确呈现,但是我需要向数据值添加箭头,如下面的屏幕快照所示。
带有箭头的饼图示例:
下面是我使用Chart.js输出饼图的代码:
var chartdata_order_status = {
labels: status,
datasets: [{
label: 'Order status',
backgroundColor: ["#00b0f0","#92d050","#ffc000","#ff6dd9"],
data: count_status
}]
};
var pieGraph = new Chart(ctx3, {
type: 'pie',
data: chartdata_country_orders,
options: {
pieceLabel: {
mode: 'value',
position: 'outside',
fontColor: '#000',
format: function (value) {
return '$' + value;
}
},
title: {
display: true,
text: 'Total Sales by Country - Top 5',
fontSize: 15,
fontStyle: 'bold'
},
legend: {
display: true,
position: 'bottom',
},
}
});
我没有包括用于从MySQLtable获取数据的PHP代码。
现在Chart.PieceLabel.js
,您可以在slices之外使用并获取标签。
演示
angular.module("app", ["chart.js"]).controller("ChartCtrl", function($scope) {
$scope.labels = ["January", "February", "March", "April", "May", "June", "July"];
$scope.data = [65, 59, 80, 81, 56, 55, 40];
$scope.options = {
pieceLabel: {
render: 'label',
fontColor: '#000',
position: 'outside',
segment: true
}
};
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.2.1/Chart.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.8/angular.js"></script>
<script src="https://cdn.jsdelivr.net/angular.chartjs/latest/angular-chart.js"></script>
<script src="https://rawgit.com/beaver71/Chart.PieceLabel.js/master/build/Chart.PieceLabel.min.js"></script>
<div ng-app="app" ng-controller="ChartCtrl">
<canvas id="pie" class="chart chart-pie"
chart-data="data" chart-labels="labels" chart-options="options">
</canvas>
</div>
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