数据来自美国大使馆
配置项如下
app.title = '各城市每个月的雾霾严重程度'
var hours = ['一月', '二月', '三月', '四月', '五月', '六月', '七月',
'八月', '九月', '十月','十一月','十二月'];
var days = ['北京', '成都', '广州',
'上海', '沈阳'];
var data =[
[0, 0, 123],
[0, 1, 103],
[0, 2, 96],
[0, 3, 73],
[0, 4, 67],
[0, 5, 65],
[0, 6, 69],
[0, 7, 52],
[0, 8, 65],
[0, 9, 101],
[0, 10, 106],
[0, 11, 121],
[1, 0, 140],
[1, 1, 99],
[1, 2, 87],
[1, 3, 67],
[1, 4, 63],
[1, 5, 53],
[1, 6, 54],
[1, 7, 54],
[1, 8, 55],
[1, 9, 77],
[1, 10, 80],
[1, 11, 116],
[2, 0, 65],
[2, 1, 52],
[2, 2, 52],
[2, 3, 47],
[2, 4, 35],
[2, 5, 31],
[2, 6, 24],
[2, 7, 33],
[2, 8, 36],
[2, 9, 47],
[2, 10, 47],
[2, 11, 55],
[3, 0, 77],
[3, 1, 59],
[3, 2, 55],
[3, 3, 54],
[3, 4, 47],
[3, 5, 38],
[3, 6, 35],
[3, 7, 29],
[3, 8, 30],
[3, 9, 35],
[3, 10, 60],
[3, 11, 85],
[4, 0, 95],
[4, 1, 81],
[4, 2, 75],
[4, 3, 59],
[4, 4, 50],
[4, 5, 45],
[4, 6, 49],
[4, 7, 49],
[4, 8, 47],
[4, 9, 81],
[4, 10, 104],
[4, 11, 101]
];
option = {
tooltip: {
position: 'top',
formatter: function(params) {
return params.name+'PM2.5: '+params.value[1]
}
},
toolbox: {
show: true,
feature: {
saveAsImage: {
show:true,
excludeComponents :['toolbox'],
pixelRatio: 5
}
}
},
title:[],
singleAxis: [],
series: []
};
//这里应该是遍历的意思,idx是遍历每一根轴的标志
echarts.util.each(days, function (day, idx) {
option.title.push({
textBaseline: 'middle',
top: (idx + 1) * 100 / 5-9 + '%',//每个标题的位置
text: day
});
option.singleAxis.push({
left: 150,
type: 'category',
boundaryGap: false,
data: hours,
top: (idx * 100 / 5 + 10) + '%',
height: (100 /5 -19) + '%',//5是指有五根轴,这里计算的是每根轴离顶端的距离
left:'14%',
axisLabel: {
interval:3,
margin:30
}
});
option.series.push({
singleAxisIndex: idx,
coordinateSystem: 'singleAxis',
type: 'scatter',
label: {
normal: {
show: true,
position: 'top'
}},
data: [],
symbolSize: function (dataItem) {
return dataItem[1] * 0.5;
}
});
});
echarts.util.each(data, function (dataItem) {
option.series[dataItem[0]].data.push([dataItem[1], dataItem[2]]);
});