09Echarts - 折线图（Large scale area chart）

效果图

源代码

	
		
		ECharts
		
		
	

	
		
		

		
			// 基于准备好的dom，初始化echarts实例
			var myChart = echarts.init(document.getElementById('main'));

			var base = +new Date(1968, 9, 3);
			var oneDay = 24 * 3600 * 1000;
			var date = [];

			var data = [Math.random() * 300];

			for(var i = 1; i < 20000; i++) {
				var now = new Date(base += oneDay);
				date.push([now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'));
				data.push(Math.round((Math.random() - 0.5) * 20 + data[i - 1]));
			}

			// 指定图表的配置项和数据
			var option = {
				tooltip: {
					trigger: 'axis',
					position: function(pt) {
						return [pt[0], '10%'];
					}
				},
				title: {
					left: 'center',
					text: '大数据量面积图',
				},
				toolbox: {
					feature: {
						dataZoom: {
							yAxisIndex: 'none'
						},
						restore: {},
						saveAsImage: {}
					}
				},
				xAxis: {
					type: 'category',
					boundaryGap: false,
					data: date
				},
				yAxis: {
					type: 'value',
					boundaryGap: [0, '100%']
				},
				dataZoom: [{
					type: 'inside',
					start: 0,
					end: 10
				}, {
					start: 0,
					end: 10,
					handleIcon: 'M10.7,11.9v-1.3H9.3v1.3c-4.9,0.3-8.8,4.4-8.8,9.4c0,5,3.9,9.1,8.8,9.4v1.3h1.3v-1.3c4.9-0.3,8.8-4.4,8.8-9.4C19.5,16.3,15.6,12.2,10.7,11.9z M13.3,24.4H6.7V23h6.6V24.4z M13.3,19.6H6.7v-1.4h6.6V19.6z',
					handleSize: '80%',
					handleStyle: {
						color: '#fff',
						shadowBlur: 3,
						shadowColor: 'rgba(0, 0, 0, 0.6)',
						shadowOffsetX: 2,
						shadowOffsetY: 2
					}
				}],
				series: [{
					name: '模拟数据',
					type: 'line',
					smooth: true,
					symbol: 'none',
					sampling: 'average',
					itemStyle: {
						color: 'rgb(255, 70, 131)'
					},
					areaStyle: {
						color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
							offset: 0,
							color: 'rgb(255, 158, 68)'
						}, {
							offset: 1,
							color: 'rgb(255, 70, 131)'
						}])
					},
					data: data
				}]
			};

			myChart.setOption(option);