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","45秒","90秒","135秒","180秒","225秒","270秒","315秒","360秒","405秒","450秒","495秒","540秒","585秒","630秒","675秒","720秒","765秒","810秒","855秒","900秒","945秒","990秒","1035秒","1080秒","1125秒","1170秒"],
		datasets: [{
			label: '瞬时速度',
			backgroundColor: window.chartColors.orange,
			borderColor: window.chartColors.orange,
			data: [34.7,53.3,33.3,46.7,45.3,61.3,32,50.7,28,36,36,53.3,38.7,36,17.3,38.7,33.3,46.7,40,44,46.7,38.7,42.7,52,30.7,33.3,29.3],
			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);
};