5👍
This code uses streaming plugin and works as expected.
http://jsfiddle.net/nagix/kvu0r6j2/
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-streaming@1.5.0/dist/chartjs-plugin-streaming.min.js"></script>
var ctx = document.getElementById("chart").getContext("2d");
var chart = new Chart(ctx, {
type: 'line',
data: {
labels: [],
datasets: [{
label: "My First dataset",
backgroundColor: "rgba(95,186,88,0.7)",
borderColor: "rgba(95,186,88,1)",
pointBackgroundColor: "rgba(0,0,0,0)",
pointBorderColor: "rgba(0,0,0,0)",
pointHoverBackgroundColor: "rgba(95,186,88,1)",
pointHoverBorderColor: "rgba(95,186,88,1)",
data: []
}]
},
options: {
scales: {
xAxes: [{
type: 'realtime'
}]
},
plugins: {
streaming: {
onRefresh: function(chart) {
chart.data.labels.push(Date.now());
chart.data.datasets[0].data.push(
Math.floor(10 + Math.random() * 80)
);
},
delay: 2000
}
}
}
});
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2👍
You should use 2.5.0 chartsjs
here it works :
http://jsfiddle.net/kLg5ntou/93
var data = {
labels: ["0", "1", "2", "3", "4", "5", "6"],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(95,186,88,0.7)",
strokeColor: "rgba(95,186,88,1)",
pointColor: "rgba(0,0,0,0)",
pointStrokeColor: "rgba(0,0,0,0)",
pointHighlightFill: "rgba(95,186,88,1)",
pointHighlightStroke: "rgba(95,186,88,1)",
data: [65, 59, 80, 81, 56, 55, 40]
}
]
};
var ctx = document.getElementById("chart").getContext("2d");
var chart = new Chart(ctx, {type: 'line', data: data});
setInterval(function () {
chart.config.data.labels.push(Math.floor(Date.now() / 1000));
chart.config.data.datasets[0].data.push(Math.floor(10 + Math.random() * 80));
// limit to 10
chart.config.data.labels.shift();
chart.config.data.datasets[0].data.shift();
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Source:stackexchange.com