window.chartColors = {
	red: 'rgb(255, 99, 132)',
	orange: 'rgb(255, 159, 64)',
	yellow: 'rgb(255, 205, 86)',
	green: 'rgb(75, 192, 192)',
	blue: 'rgb(54, 162, 235)',
	purple: 'rgb(153, 102, 255)',
	grey: 'rgb(201, 203, 207)'
};

var config = {
	type: 'line',
	data: {
		labels: ["0秒","40秒","80秒","120秒","160秒","200秒","240秒","280秒","320秒","360秒","400秒","440秒","480秒","520秒","560秒","600秒","640秒","680秒","720秒","760秒","800秒","840秒","880秒","920秒","960秒","1000秒","1040秒"],
		datasets: [{
			label: '瞬时速度',
			backgroundColor: window.chartColors.orange,
			borderColor: window.chartColors.orange,
			data: [99,145.5,148.5,177,154.5,147,172.5,163.5,147,112.5,99,118.5,144,168,157.5,165,172.5,142.5,157.5,136.5,142.5,90,183,136.5,169.5,187.5,91.5],
			fill: false,
		}]
	},
	options: {
		responsive: true,
		title: {
			display: false,
			text: '打字速度曲线'
		},
		tooltips: {
			mode: 'index',
			intersect: false,
		},
		hover: {
			mode: 'nearest',
			intersect: true
		},
		scales: {
			xAxes: [{
				display: true,
				scaleLabel: {
					display: true,
					labelString: '时间'
				}
			}],
			yAxes: [{
				display: true,
				scaleLabel: {
					display: true,
					labelString: '速度'
				}
			}]
		}
	}
};


window.onload = function() {
	var ctx = document.getElementById('canvas').getContext('2d');
	window.myLine = new Chart(ctx, config);
};