Javascript 如何在chart.js2中绘制没有标签的垂直线
我使用Javascript 如何在chart.js2中绘制没有标签的垂直线,javascript,canvas,charts,chart.js2,Javascript,Canvas,Charts,Chart.js2,我使用chart.js2.8和chartjs plugin annotation.js 我有一个条形图 我的标签是:[1.0-2.8],[2.8-4.6],[6.4-8.2],[8.2-10.0] var ctx = document.getElementById("myChart").getContext("2d"); new Chart(ctx, { type: "bar", data: { labels: labels, datasets: [{ dat
chart.js2.8
和chartjs plugin annotation.js
我有一个条形图
我的标签是:[1.0-2.8],[2.8-4.6],[6.4-8.2],[8.2-10.0]
var ctx = document.getElementById("myChart").getContext("2d");
new Chart(ctx, {
type: "bar",
data: {
labels: labels,
datasets: [{
data: datas
}]
},
options: {
annotation: {
annotations: [{
type: "line",
mode: "vertical",
scaleID: "x-axis-0",
value: "2.8 - 4.6", //value must be equal a label :(
borderColor: "red",
label: {
content: "TODAY",
enabled: true,
position: "top"
}
}]
}
}
});
我希望垂直线正好画在2.4点上。但垂直线只能在标签值处绘制。我怎样才能解决这个问题