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echarts-demo1.html
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echarts-demo1.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Demo</title>
<script src="https://cdn.bootcss.com/echarts/4.4.0-rc.1/echarts.min.js"></script>
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/jquery-csv/1.0.5/jquery.csv.min.js"></script>
<script src="https://cdn.bootcss.com/lodash.js/4.17.15/lodash.min.js"></script>
<script src="record.js"></script>
</head>
<body>
<div style="text-align: center;">
<div style="padding: 30px;margin: 10px;border: 5px pink dashed">
<input type="file" id="inputfile">
<select id="bg">
<option value="">背景音乐</option>
<option value="./sunny.mp3">sunny</option>
</select>
<button id="rec" disabled onclick="clickHandler()">录制</button>
<a id="link" disabled>下载</a>
</div>
<div id="container" style="padding: 30px;margin: 10px;border: 5px black dashed">
</div>
<div id="main" style="height: 1000px; width: 563px;margin: 0 auto"></div>
</div>
<script type="text/javascript">
Date.prototype.format = function (fmt) {
var o = {
"M+": this.getMonth() + 1, //月份
"d+": this.getDate(), //日
"h+": this.getHours(), //小时
"m+": this.getMinutes(), //分
"s+": this.getSeconds(), //秒
"q+": Math.floor((this.getMonth() + 3) / 3), //季度
"S": this.getMilliseconds() //毫秒
};
if (/(y+)/.test(fmt))
fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
for (var k in o)
if (new RegExp("(" + k + ")").test(fmt))
fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
return fmt;
}
var labelColors = [];
var colors = [
'#68c3aa', '#EFE42A', '#64BD3D', '#EE9201',
'#29AAE3', '#B74AE5', '#0AAF9F', '#E89589',
'#ff4844', '#9ac3e5', '#66ac52', '#ffc032', '#549bd3', '#f47e39',
'rgb(164,205,238)', 'rgb(42,170,227)', 'rgb(25,46,94)', 'rgb(195,229,235)'
];
var itemStyle = {
normal: {
barBorderRadius: [30, 30, 30, 30],
label: {
show: true,
position: 'right',
textStyle: {
fontWeight: 'bolder',
fontSize: '12',
fontFamily: '微软雅黑',
}
},
color: function (params) {
var labelColor = labelColors.filter(function (item) {
return item.label === params.name
});
if (labelColor.length > 0) {
return labelColor[0].color;
}
var color = colors.shift();
colors.push(color);
labelColor = {label: params.name, color: color};
labelColors.push(labelColor)
return labelColor.color;
},
}
};
var myChart = echarts.init(document.getElementById('main'));
option = {
legend: {
show: false,
},
title: {
text: '世界人口总量',
subtext: '子标题...',
left: 50,
top: 10,
formatter: function (name) {
return 'Legend ' + name;
}
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
animationDurationUpdate: 2000,
xAxis: {
type: 'value',
splitNumber: 3
},
yAxis: {
type: 'category',
data: [],
},
series: [
{
name: '2011年',
type: 'bar',
data: [],
itemStyle: itemStyle,
barWidth: 20
}
]
};
// 使用刚指定的配置项和数据显示图表。
myChart.setOption(option);
var updateProps = [];
var updateScaleProps = [];
setInterval(function () {
var data = updateProps.shift();
if (!data) {
return;
}
if (!!data.labels) {
option.yAxis.data = data.labels;
}
if (!!data.datas) {
var max = Math.max.apply(null, data.datas);
var min = Math.min.apply(null, data.datas);
// option.xAxis.min = min - 550;
option.xAxis.max = max + 1000;
option.series[0].data = data.datas
}
option.title.subtext.text = data.title;
myChart.setOption(option);//
}, 50)
var lastData = [];
function triggerUpdate(title, labels, datas) {
if (!labels) {
labels = [];
}
if (!datas) {
datas = [];
}
if (!title) {
title = "Waiting..."
}
//膨胀
if (lastData.length > 0) {
var scales = getScale(lastData, datas);
for (var x = 1; x < 104; x++) {
var scaleResult = scaleBy(lastData, datas, scales);
if (scaleResult.toString() === lastData.toString()) {
break;
}
lastData = scaleResult;
updateScaleProps.push({title: title, labels: labels, datas: scaleResult})
}
}
lastData = datas;
updateScaleProps.push({title: title, labels: labels, datas: datas});
}
function getScale(sourceArray, limitArray) {
var scales = [];
for (var i = 0; i < limitArray.length; i++) {
if (!sourceArray[i]) {
scales.push(limitArray[i] / 100);
} else {
scales.push((limitArray[i] - sourceArray[i]) / 100);
}
}
return scales;
}
function scaleBy(sourceArray, limitArray, scales) {
var scaleArray = [];
for (var i = 0; i < limitArray.length; i++) {
var result = 0;
if (!sourceArray[i]) {
result = 0 + scales[i];
} else {
result = sourceArray[i] + scales[i];
}
if (result <= limitArray[i]) {
}
if (result > limitArray[i]) {
result = limitArray[i];
}
scaleArray.push(parseInt(result));
}
return scaleArray;
}
function groupBy(sourceArray, attr) {
if (!sourceArray) {
return null;
}
var groupResult = {};
sourceArray.forEach(function (item) {
var label = item[attr];
if (!groupResult[label]) {
groupResult[label] = [item];
} else {
groupResult[label].push(item);
}
});
return Object.keys(groupResult).length > 0 ? groupResult : null;
}
function orderBy(sourceArray, attr, orderType) {
if (!orderType) {
orderType = 'asc';
}
var compare = function (obj1, obj2) {
var val1 = obj1[attr];
var val2 = obj2[attr];
if (val1 < val2) {
return orderType === 'desc' ? 1 : -1;
} else if (val1 > val2) {
return orderType === 'desc' ? -1 : 1;
} else {
return 0;
}
}
return sourceArray.sort(compare)
}
$("#inputfile").change(function () {
var reader = new FileReader();
option.title.text = this.files[0].name;
reader.readAsText(this.files[0], "UTF-8");
reader.onload = function (evt) {
//启用录制按钮
rec.disabled = false;
var fileString = evt.target.result;
var originData = $.csv.toObjects(fileString, {
header: ['name', 'type', 'value', 'date']
});
console.info(originData)
var dataByMap = originData.map(function (item) {
item['date'] = new Date(Date.parse(item['date'].replace(/-/g, "/"))).format("yyyy-MM");
item['value'] = parseInt(item['value']);
return item;
})
var dataOrderByYear = orderBy(originData, 'date', 'asc');
var dataGroupByYear = groupBy(dataOrderByYear, 'date');
for (var year in dataGroupByYear) {
var data = dataGroupByYear[year].map(function (item) {
return {name: item.name, type: item.type, value: item.value, date: item.date};
})
data = orderBy(data, 'value');
console.info(data)
triggerUpdate(year,
data.map(function (item) {
return item.type + "·" + item.name;
}
),
data.map(function (item) {
return parseInt(item.value)
})
);
}
updateProps = updateScaleProps
};
});
</script>
</body>
</html>