我正在使用Chart.js中的双轴图表,使用条形图上覆盖的折线图,我找到了此question的工作代码,图表效果很好,但我可以&# 39; t显示y轴标签或图表标题。
在我开始使用叠加图表之前,我使用的是普通的双轴图表,我在标题和标签中添加的方式效果很好,所以我对如何获得标题感到有些困惑和标签显示在我当前的图表上。
这是我目前的代码:
$scope.drawChart = function(data_1, data_2, labels) {
var overlayData = {
labels: labels,
title: {
display: true,
text: 'Chart Title'
},
datasets: [{
label: "Revenue Potential Per Available Rental",
type: "bar",
scaleLabel: {
display: true,
labelString: "Revenue Potential Per Available Rental"
},
yAxesGroup: "1",
fillColor: "rgba(56, 132, 199,0.5)",
strokeColor: "rgba(56, 132, 199,0.8)",
highlightFill: "rgba(56, 132, 199,0.75)",
highlightStroke: "rgba(56, 132, 199,1)",
data: data_1
}, {
label: "Average Monthly Listings",
type: "line",
scaleLabel: {
display: true,
labelString: "Average Monthly Listings"
},
yAxesGroup: "2",
fillColor: "rgba(89, 89, 89,0.5)",
strokeColor: "rgba(89, 89, 89,0.8)",
highlightFill: "rgba(89, 89, 89,0.75)",
highlightStroke: "rgba(89, 89, 89,1)",
data: data_2
}],
yAxes: [{
name: "1",
scalePositionLeft: false,
scaleFontColor: "rgba(56, 132, 199,0.5,0.8)"
}, {
name: "2",
scalePositionLeft: true,
scaleFontColor: "rgba(89, 89, 89,0.8)"
}]
};
var myOverlayChart = new Chart(document.getElementById("chart").getContext("2d")).Overlay(overlayData,
{
populateSparseData: true,
overlayBars: false,
datasetFill: true,
responsive: true
});
}
我之前用于在标签中添加的代码段是: 数据集:[{ scaleLabel:{ 显示:true, labelString:"平均每月列表" }, ....}]
我获得冠军的方式是:
title: {
display: true,
text: 'Chart Title'
}
这是我为它制作的小提琴:https://jsfiddle.net/catiecook/6vgtakz2/