JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.bundle.js"></script>
<body>
<canvas id="chart_canvas"></canvas>
</body>
JavaScript
var canvas = document.getElementById('chart_canvas');
var ctx = canvas.getContext('2d');
// Generate random data to plot
var DATA_POINT_NUM = 58;
var data = {
labels: [],
datasets: [
{
data: [],
},
]
}
for (var i=0; i<DATA_POINT_NUM; i++) {
data.datasets[0].data.push({ x: i,
y: Math.random()*10
});
data.labels.push(String.fromCharCode(65+i));
}
function getXAxisLabel(value) {
try {
var xMin = lineChart.options.scales.xAxes[0].ticks.min;
} catch(e) {
var xMin = undefined;
}
if (xMin === value) {
return '';
} else {
return data.labels[value];
}
}
var lineChart = new Chart(ctx, {
type: 'line',
data: data,
options: {
animation: false,
scales: {
xAxes: [{
type: 'linear',
position: 'bottom',
ticks: {
min: 0,
max: 10,
callback: getXAxisLabel, // function(value) { return data.labels[value]; },
autoSkip: false,
maxRotation: 0,
},
}]
}
}
});
var xMin = 0; // Starting minimum value for the x-axis
var xLength = 10; // Length of the x-axis
var animationDuration = 5000; // Duration of animation in ms
// Calculate animation properties
var framesPerSec = 100;
var frameTime = 1000/framesPerSec;
var xStep = (DATA_POINT_NUM-xMin+xLength)/(animationDuration/1000*framesPerSec);
function nextFrame() {
var xMax = xMin+xLength;
if (xMax < DATA_POINT_NUM-1) {
if (xMax+xStep > DATA_POINT_NUM-1) {
xMax = DATA_POINT_NUM-1;
xMin = xMax-xLength;
}
lineChart.options.scales.xAxes[0].ticks.min = xMin;
lineChart.options.scales.xAxes[0].ticks.max = xMax;
lineChart.update();
setTimeout(nextFrame, frameTime);
xMin += 0.1;
}
}
nextFrame();