155 lines
5.6 KiB
HTML
155 lines
5.6 KiB
HTML
<!doctype html>
|
|
<html>
|
|
|
|
<head>
|
|
<title>Line Chart</title>
|
|
<script src="../dist/Chart.bundle.js"></script>
|
|
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
|
|
<style>
|
|
canvas {
|
|
-moz-user-select: none;
|
|
-webkit-user-select: none;
|
|
-ms-user-select: none;
|
|
}
|
|
</style>
|
|
</head>
|
|
|
|
<body>
|
|
<div style="width:75%;">
|
|
<canvas id="canvas"></canvas>
|
|
</div>
|
|
<br>
|
|
<br>
|
|
<button id="randomizeData">Randomize Data</button>
|
|
<button id="addData">Add Data</button>
|
|
<button id="removeData">Remove Data</button>
|
|
<script>
|
|
var MONTHS = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
|
|
var randomScalingFactor = function() {
|
|
return Math.round(Math.random() * 100 * (Math.random() > 0.5 ? -1 : 1));
|
|
};
|
|
var randomColorFactor = function() {
|
|
return Math.round(Math.random() * 255);
|
|
};
|
|
var randomColor = function(opacity) {
|
|
return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',' + (opacity || '.3') + ')';
|
|
};
|
|
|
|
var config = {
|
|
type: 'line',
|
|
data: {
|
|
labels: ["January", "February", "March", "April", "May", "June", "July"],
|
|
datasets: [{
|
|
label: "dataset - big points",
|
|
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
|
|
fill: false,
|
|
borderDash: [5, 5],
|
|
pointRadius: 15,
|
|
pointHoverRadius: 10,
|
|
}, {
|
|
label: "dataset - individual point sizes",
|
|
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
|
|
fill: false,
|
|
borderDash: [5, 5],
|
|
pointRadius: [2, 4, 6, 18, 0, 12, 20],
|
|
}, {
|
|
label: "dataset - large pointHoverRadius",
|
|
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
|
|
fill: false,
|
|
pointHoverRadius: 30,
|
|
}, {
|
|
label: "dataset - large pointHitRadius",
|
|
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()],
|
|
fill: false,
|
|
pointHitRadius: 20,
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true,
|
|
legend: {
|
|
position: 'bottom',
|
|
},
|
|
hover: {
|
|
mode: 'label'
|
|
},
|
|
scales: {
|
|
xAxes: [{
|
|
display: true,
|
|
scaleLabel: {
|
|
display: true,
|
|
labelString: 'Month'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: true,
|
|
scaleLabel: {
|
|
display: true,
|
|
labelString: 'Value'
|
|
}
|
|
}]
|
|
},
|
|
title: {
|
|
display: true,
|
|
text: 'Chart.js Line Chart - Different point sizes'
|
|
}
|
|
}
|
|
};
|
|
|
|
$.each(config.data.datasets, function(i, dataset) {
|
|
var background = randomColor(0.5);
|
|
dataset.borderColor = background;
|
|
dataset.backgroundColor = background;
|
|
dataset.pointBorderColor = background;
|
|
dataset.pointBackgroundColor = background;
|
|
dataset.pointBorderWidth = 1;
|
|
});
|
|
|
|
window.onload = function() {
|
|
var ctx = document.getElementById("canvas").getContext("2d");
|
|
window.myLine = new Chart(ctx, config);
|
|
};
|
|
|
|
$('#randomizeData').click(function() {
|
|
$.each(config.data.datasets, function(i, dataset) {
|
|
dataset.data = dataset.data.map(function() {
|
|
return randomScalingFactor();
|
|
});
|
|
|
|
});
|
|
|
|
window.myLine.update();
|
|
});
|
|
|
|
$('#addData').click(function() {
|
|
if (config.data.datasets.length > 0) {
|
|
var month = MONTHS[config.data.labels.length % MONTHS.length];
|
|
config.data.labels.push(month);
|
|
|
|
$.each(config.data.datasets, function(i, dataset) {
|
|
dataset.data.push(randomScalingFactor());
|
|
if (Array.isArray(dataset.pointRadius)) {
|
|
dataset.pointRadius.push(Math.random() * 30);
|
|
}
|
|
});
|
|
|
|
window.myLine.update();
|
|
}
|
|
});
|
|
|
|
$('#removeData').click(function() {
|
|
config.data.labels.splice(-1, 1); // remove the label first
|
|
|
|
config.data.datasets.forEach(function(dataset, datasetIndex) {
|
|
dataset.data.pop();
|
|
if (Array.isArray(dataset.pointRadius)) {
|
|
dataset.pointRadius.pop();
|
|
}
|
|
});
|
|
|
|
window.myLine.update();
|
|
});
|
|
</script>
|
|
</body>
|
|
|
|
</html>
|