我正在将Chart.js实现到我的AngularJS应用中,并且正在将Server API的图表数据加载到$scope.chartData
中,该数据是数字的数组。
我需要从Chart.js访问此变量,并使用其网站上的脚本示例,我不确定如何访问该变量。尝试类似:
home.html:
<!-- A bunch of HTML, then -->
<canvas id="myChart" width="400" height="400"></canvas>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: 'Balance',
data: {{chartData}}, //this is where I need to access the variable
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
</script>
将这些数据加载到图表脚本的最佳方法(而不是解决)是什么?
您应该使用库 angular-chart.js
inorder inorder in order与angularjs一起使用。
您可以将数据部分分配给选项配置。
演示
angular.module("app", ["chart.js"])
.controller("ChartCtrl", function($scope) {
$scope.labelsPercent = ['Equipment 1', 'Equipment 2', 'Equipment 3', 'Equipment 4'];
$scope.chartOptionsPercent = {
title: {
display: true,
text: "Downtime Percentage of Equipment",
fontSize: 20
},
legend: {
text: "Hello"
},
tooltips: {
enabled: false
},
scales: {
yAxes: [{
id: 'y-axis-1',
type: 'linear',
position: 'left',
ticks: {
min: 0,
max: 100
}
}],
xAxes: [{
scaleLabel: {
display: true,
labelString: 'Name of Equipment'
},
gridLines: {
color: "rgba(0, 0, 0, 0)",
}
}],
yAxes: [{
scaleLabel: {
display: true,
labelString: 'Percentage of Downtime (%)'
},
gridLines: {
color: "rgba(0, 0, 0, 0)",
}
}]
}
}
$scope.dataPercent = [5, 6, 7, 12];
});
<!DOCTYPE html>
<html>
<head>
<title>radar Chart</title>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.0-rc.0/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-chart.js/1.0.3/angular-chart.min.js"></script>
</head>
<body ng-app="app">
<div ng-controller="ChartCtrl" style="width:360px">
<canvas class="chart chart-bar" chart-click="onClick" chart-data="dataPercent" chart-labels="labelsPercent" chart-options="chartOptionsPercent" ></canvas>
</div>
</body>
</html>