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aschwarz
2023-01-30 08:01:11 +01:00
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64
chart/samples/scales/linear/min-max-settings.html Executable file
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<!doctype html>
<html>
<head>
<title>Min/Max Settings</title>
<script src="../../../Chart.bundle.js"></script>
<script src="../../utils.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>
<script>
var config = {
type: 'line',
data: {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
label: "My First dataset",
backgroundColor: window.chartColors.red,
borderColor: window.chartColors.red,
data: [10, 30, 50, 20, 25, 44, -10],
fill: false,
}, {
label: "My Second dataset",
fill: false,
backgroundColor: window.chartColors.blue,
borderColor: window.chartColors.blue,
data: [100, 33, 22, 19, 11, 49, 30],
}]
},
options: {
responsive: true,
title:{
display:true,
text:'Min and Max Settings'
},
scales: {
yAxes: [{
ticks: {
min: 10,
max: 50
}
}]
}
}
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, config);
};
</script>
</body>
</html>

175
chart/samples/scales/linear/step-size.html Executable file
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<!doctype html>
<html>
<head>
<title>Line Chart</title>
<script src="../../../Chart.bundle.js"></script>
<script src="../../utils.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="addDataset">Add Dataset</button>
<button id="removeDataset">Remove Dataset</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);
};
var config = {
type: 'line',
data: {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
label: "My First dataset",
backgroundColor: window.chartColors.red,
borderColor: window.chartColors.red,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
fill: false,
}, {
label: "My Second dataset",
fill: false,
backgroundColor: window.chartColors.blue,
borderColor: window.chartColors.blue,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}]
},
options: {
responsive: true,
title:{
display:true,
text:'Chart.js Line Chart'
},
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Month'
}
}],
yAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Value'
},
ticks: {
min: 0,
max: 100,
// forces step size to be 5 units
stepSize: 5
}
}]
}
}
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, config);
};
document.getElementById('randomizeData').addEventListener('click', function() {
config.data.datasets.forEach(function(dataset) {
dataset.data = dataset.data.map(function() {
return randomScalingFactor();
});
});
window.myLine.update();
});
var colorNames = Object.keys(window.chartColors);
document.getElementById('addDataset').addEventListener('click', function() {
var colorName = colorNames[config.data.datasets.length % colorNames.length];
var newColor = window.chartColors[colorName];
var newDataset = {
label: 'Dataset ' + config.data.datasets.length,
backgroundColor: newColor,
borderColor: newColor,
data: [],
fill: false
};
for (var index = 0; index < config.data.labels.length; ++index) {
newDataset.data.push(randomScalingFactor());
}
config.data.datasets.push(newDataset);
window.myLine.update();
});
document.getElementById('addData').addEventListener('click', function() {
if (config.data.datasets.length > 0) {
var month = MONTHS[config.data.labels.length % MONTHS.length];
config.data.labels.push(month);
config.data.datasets.forEach(function(dataset) {
dataset.data.push(randomScalingFactor());
});
window.myLine.update();
}
});
document.getElementById('removeDataset').addEventListener('click', function() {
config.data.datasets.splice(0, 1);
window.myLine.update();
});
document.getElementById('removeData').addEventListener('click', function() {
config.data.labels.splice(-1, 1); // remove the label first
config.data.datasets.forEach(function(dataset, datasetIndex) {
dataset.data.pop();
});
window.myLine.update();
});
</script>
</body>
</html>

67
chart/samples/scales/linear/suggested-min-max-settings.html Executable file
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<!doctype html>
<html>
<head>
<title>Suggested Min/Max Settings</title>
<script src="../../../Chart.bundle.js"></script>
<script src="../../utils.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>
<script>
var config = {
type: 'line',
data: {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
label: "My First dataset",
backgroundColor: window.chartColors.red,
borderColor: window.chartColors.red,
data: [10, 30, 39, 20, 25, 34, -10],
fill: false,
}, {
label: "My Second dataset",
fill: false,
backgroundColor: window.chartColors.blue,
borderColor: window.chartColors.blue,
data: [18, 33, 22, 19, 11, 39, 30],
}]
},
options: {
responsive: true,
title:{
display:true,
text:'Min and Max Settings'
},
scales: {
yAxes: [{
ticks: {
// the data minimum used for determining the ticks is Math.min(dataMin, suggestedMin)
suggestedMin: 10,
// the data maximum used for determining the ticks is Math.max(dataMax, suggestedMax)
suggestedMax: 50
}
}]
}
}
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myLine = new Chart(ctx, config);
};
</script>
</body>
</html>