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$(function(){
Chart.defaults.global.defaultFontSize = 16;
var setUpLabelsForChart = function(chart){
var $parent = $(chart.chart.canvas).parent();
var xGutterInPixels = 30;
var lasty = 0;
$.each(chart.config.data.datasets, function(datasetIndex, dataset){
var $label = $('.label[data-datasetIndex="' + datasetIndex + '"]', $parent);
var latestPoint = chart.getDatasetMeta(datasetIndex).data[ dataset.data.length - 1 ];
var y = latestPoint._model.y;
if (y < lasty) {
y = lasty;
}
$label.css({
top: y,
left: latestPoint._model.x + xGutterInPixels
});
lasty = y + $label.height() + 8;
});
};
// Returns an array `numberOfPoints` long, where the final item
// is `radius`, and all the other items are 0.
var pointRadiusFinalDot = function(numberOfPoints, radius){
var pointRadius = [];
for (var i=1; i < numberOfPoints; i++) {
pointRadius.push(0);
}
pointRadius.push(radius);
return pointRadius;
};
var makeSparkline = function makeSparkline($el, valuesStr, color, title){
var values = [];
var labels = [];
$.each(valuesStr.split(' '), function(key, value){
values.push(Number(value));
labels.push('');
});
var spread = Math.max.apply(null, values) - Math.min.apply(null, values);
return new Chart($el, {
type: 'line',
data: {
labels: labels,
datasets: [{
data: values,
pointRadius: pointRadiusFinalDot(values.length, 4),
pointBackgroundColor: color,
borderColor: color,
lineTension: 0
}]
},
options: {
layout: {
padding: {
top: 0,
right: 5,
bottom: 0,
left: 2
}
},
scales: {
xAxes: [{
type: "category",
display: false
}],
yAxes: [{
type: "linear",
display: false,
ticks: {
min: Math.min.apply(null, values) - (spread * 0.3),
max: Math.max.apply(null, values) + (spread * 0.3)
}
}]
}
}
});
};
$('.labelled-sparkline canvas').each(function(){
makeSparkline(
$(this),
$(this).data('values'),
$(this).data('color')
);
});
var $allReports = $('#chart-all-reports'),
labels = $allReports.data('labels'),
data0 = $allReports.data('values-reports'),
data1 = $allReports.data('values-fixed');
window.chartAllReports = new Chart($allReports, {
type: 'line',
data: {
labels: labels,
datasets: [{
data: data0,
pointRadius: pointRadiusFinalDot(data0.length, 4),
pointBackgroundColor: '#F4A140',
borderColor: '#F4A140'
}, {
data: data1,
pointRadius: pointRadiusFinalDot(data1.length, 4),
pointBackgroundColor: '#62B356',
borderColor: '#62B356'
}]
},
options: {
animation: {
onComplete: function(){
setUpLabelsForChart(this);
}
},
layout: {
padding: {
top: 4
}
},
scales: {
xAxes: [{
type: 'category',
gridLines: {
display: false
}
}],
yAxes: [{
type: "linear",
ticks: {
display: false
}
}]
},
onResize: function(chart, size){
setUpLabelsForChart(chart);
}
}
});
});
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