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/* global Chart */
'use strict';
(function() {
Chart.plugins.register({
id: 'samples-filler-analyser',
beforeInit: function(chart, options) {
this.element = document.getElementById(options.target);
},
afterUpdate: function(chart) {
var datasets = chart.data.datasets;
var element = this.element;
var stats = [];
var meta, i, ilen, dataset;
if (!element) {
return;
}
for (i = 0, ilen = datasets.length; i < ilen; ++i) {
meta = chart.getDatasetMeta(i).$filler;
if (meta) {
dataset = datasets[i];
stats.push({
fill: dataset.fill,
target: meta.fill,
visible: meta.visible,
index: i
});
}
}
this.element.innerHTML = '<table>' +
'<tr>' +
'<th>Dataset</th>' +
'<th>Fill</th>' +
'<th>Target (visibility)</th>' +
'</tr>' +
stats.map(function(stat) {
var target = stat.target;
var row =
'<td><b>' + stat.index + '</b></td>' +
'<td>' + JSON.stringify(stat.fill) + '</td>';
if (target === false) {
target = 'none';
} else if (isFinite(target)) {
target = 'dataset ' + target;
} else {
target = 'boundary "' + target + '"';
}
if (stat.visible) {
row += '<td>' + target + '</td>';
} else {
row += '<td>(hidden)</td>';
}
return '<tr>' + row + '</tr>';
}).join('') + '</table>';
}
});
}());

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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>area > boundaries | Chart.js sample</title>
<link rel="stylesheet" type="text/css" href="../../style.css">
<script src="../../../dist/Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<script src="analyser.js"></script>
</head>
<body>
<div class="content">
<div class="wrapper col-2"><canvas id="chart-0"></canvas></div>
<div class="wrapper col-2"><canvas id="chart-1"></canvas></div>
<div class="wrapper col-2"><canvas id="chart-2"></canvas></div>
<div class="wrapper col-2"><canvas id="chart-3"></canvas></div>
<div class="toolbar">
<button onclick="toggleSmooth(this)">Smooth</button>
<button onclick="randomize(this)">Randomize</button>
</div>
</div>
<script>
var presets = window.chartColors;
var utils = Samples.utils;
var inputs = {
min: -100,
max: 100,
count: 8,
decimals: 2,
continuity: 1
};
function generateData(config) {
return utils.numbers(Chart.helpers.merge(inputs, config || {}));
}
function generateLabels(config) {
return utils.months(Chart.helpers.merge({
count: inputs.count,
section: 3
}, config || {}));
}
var options = {
maintainAspectRatio: false,
spanGaps: false,
elements: {
line: {
tension: 0.000001
}
},
plugins: {
filler: {
propagate: false
}
},
scales: {
xAxes: [{
ticks: {
autoSkip: false,
maxRotation: 0
}
}]
}
};
[false, 'origin', 'start', 'end'].forEach(function(boundary, index) {
// reset the random seed to generate the same data for all charts
utils.srand(8);
new Chart('chart-' + index, {
type: 'line',
data: {
labels: generateLabels(),
datasets: [{
backgroundColor: utils.transparentize(presets.red),
borderColor: presets.red,
data: generateData(),
label: 'Dataset',
fill: boundary
}]
},
options: Chart.helpers.merge(options, {
title: {
text: 'fill: ' + boundary,
display: true
}
})
});
});
// eslint-disable-next-line no-unused-vars
function toggleSmooth(btn) {
var value = btn.classList.toggle('btn-on');
Chart.helpers.each(Chart.instances, function(chart) {
chart.options.elements.line.tension = value ? 0.4 : 0.000001;
chart.update();
});
}
// eslint-disable-next-line no-unused-vars
function randomize() {
var seed = utils.rand();
Chart.helpers.each(Chart.instances, function(chart) {
utils.srand(seed);
chart.data.datasets.forEach(function(dataset) {
dataset.data = generateData();
});
chart.update();
});
}
</script>
</body>
</html>

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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>area > datasets | Chart.js sample</title>
<link rel="stylesheet" type="text/css" href="../../style.css">
<script src="../../../dist/Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<script src="analyser.js"></script>
</head>
<body>
<div class="content">
<div class="wrapper">
<canvas id="chart-0"></canvas>
</div>
<div class="toolbar">
<button onclick="togglePropagate(this)">Propagate</button>
<button onclick="toggleSmooth(this)">Smooth</button>
<button onclick="randomize(this)">Randomize</button>
</div>
<div id="chart-analyser" class="analyser"></div>
</div>
<script>
var presets = window.chartColors;
var utils = Samples.utils;
var inputs = {
min: 20,
max: 80,
count: 8,
decimals: 2,
continuity: 1
};
function generateData() {
return utils.numbers(inputs);
}
function generateLabels() {
return utils.months({count: inputs.count});
}
utils.srand(42);
var data = {
labels: generateLabels(),
datasets: [{
backgroundColor: utils.transparentize(presets.red),
borderColor: presets.red,
data: generateData(),
hidden: true,
label: 'D0'
}, {
backgroundColor: utils.transparentize(presets.orange),
borderColor: presets.orange,
data: generateData(),
label: 'D1',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.yellow),
borderColor: presets.yellow,
data: generateData(),
hidden: true,
label: 'D2',
fill: 1
}, {
backgroundColor: utils.transparentize(presets.green),
borderColor: presets.green,
data: generateData(),
label: 'D3',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.blue),
borderColor: presets.blue,
data: generateData(),
label: 'D4',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.grey),
borderColor: presets.grey,
data: generateData(),
label: 'D5',
fill: '+2'
}, {
backgroundColor: utils.transparentize(presets.purple),
borderColor: presets.purple,
data: generateData(),
label: 'D6',
fill: false
}, {
backgroundColor: utils.transparentize(presets.red),
borderColor: presets.red,
data: generateData(),
label: 'D7',
fill: 8
}, {
backgroundColor: utils.transparentize(presets.orange),
borderColor: presets.orange,
data: generateData(),
hidden: true,
label: 'D8',
fill: 'end'
}]
};
var options = {
maintainAspectRatio: false,
spanGaps: false,
elements: {
line: {
tension: 0.000001
}
},
scales: {
yAxes: [{
stacked: true
}]
},
plugins: {
filler: {
propagate: false
},
'samples-filler-analyser': {
target: 'chart-analyser'
}
}
};
var chart = new Chart('chart-0', {
type: 'line',
data: data,
options: options
});
// eslint-disable-next-line no-unused-vars
function togglePropagate(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.plugins.filler.propagate = value;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function toggleSmooth(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.elements.line.tension = value ? 0.4 : 0.000001;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function randomize() {
chart.data.datasets.forEach(function(dataset) {
dataset.data = generateData();
});
chart.update();
}
</script>
</body>
</html>

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<!doctype html>
<html>
<head>
<title>Line Chart</title>
<script src="../../../dist/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 config = {
type: 'line',
data: {
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
label: 'My First dataset',
borderColor: window.chartColors.red,
backgroundColor: window.chartColors.red,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}, {
label: 'My Second dataset',
borderColor: window.chartColors.blue,
backgroundColor: window.chartColors.blue,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}, {
label: 'My Third dataset',
borderColor: window.chartColors.green,
backgroundColor: window.chartColors.green,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}, {
label: 'My Third dataset',
borderColor: window.chartColors.yellow,
backgroundColor: window.chartColors.yellow,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
}]
},
options: {
responsive: true,
title: {
display: true,
text: 'Chart.js Line Chart - Stacked Area'
},
tooltips: {
mode: 'index',
},
hover: {
mode: 'index'
},
scales: {
xAxes: [{
scaleLabel: {
display: true,
labelString: 'Month'
}
}],
yAxes: [{
stacked: true,
scaleLabel: {
display: true,
labelString: 'Value'
}
}]
}
}
};
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,
borderColor: newColor,
backgroundColor: newColor,
data: [],
};
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) {
dataset.data.pop();
});
window.myLine.update();
});
</script>
</body>
</html>

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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>area > radar | Chart.js sample</title>
<link rel="stylesheet" type="text/css" href="../../style.css">
<script src="../../../dist/Chart.bundle.js"></script>
<script src="../../utils.js"></script>
<script src="analyser.js"></script>
</head>
<body>
<div class="content">
<div class="wrapper" style="max-width: 512px; margin: auto">
<canvas id="chart-0"></canvas>
</div>
<div class="toolbar">
<button onclick="togglePropagate(this)">Propagate</button>
<button onclick="toggleSmooth(this)">Smooth</button>
<button onclick="randomize(this)">Randomize</button>
</div>
<div id="chart-analyser" class="analyser"></div>
</div>
<script>
var presets = window.chartColors;
var utils = Samples.utils;
var inputs = {
min: 8,
max: 16,
count: 8,
decimals: 2,
continuity: 1
};
function generateData() {
// radar chart doesn't support stacked values, let's do it manually
var values = utils.numbers(inputs);
inputs.from = values;
return values;
}
function generateLabels() {
return utils.months({count: inputs.count});
}
utils.srand(42);
var data = {
labels: generateLabels(),
datasets: [{
backgroundColor: utils.transparentize(presets.red),
borderColor: presets.red,
data: generateData(),
label: 'D0'
}, {
backgroundColor: utils.transparentize(presets.orange),
borderColor: presets.orange,
data: generateData(),
hidden: true,
label: 'D1',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.yellow),
borderColor: presets.yellow,
data: generateData(),
label: 'D2',
fill: 1
}, {
backgroundColor: utils.transparentize(presets.green),
borderColor: presets.green,
data: generateData(),
label: 'D3',
fill: false
}, {
backgroundColor: utils.transparentize(presets.blue),
borderColor: presets.blue,
data: generateData(),
label: 'D4',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.purple),
borderColor: presets.purple,
data: generateData(),
label: 'D5',
fill: '-1'
}]
};
var options = {
maintainAspectRatio: true,
spanGaps: false,
elements: {
line: {
tension: 0.000001
}
},
plugins: {
filler: {
propagate: false
},
'samples-filler-analyser': {
target: 'chart-analyser'
}
}
};
var chart = new Chart('chart-0', {
type: 'radar',
data: data,
options: options
});
// eslint-disable-next-line no-unused-vars
function togglePropagate(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.plugins.filler.propagate = value;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function toggleSmooth(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.elements.line.tension = value ? 0.4 : 0.000001;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function randomize() {
inputs.from = [];
chart.data.datasets.forEach(function(dataset) {
dataset.data = generateData();
});
chart.update();
}
</script>
</body>
</html>