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75 lines
2.3 KiB
JavaScript
75 lines
2.3 KiB
JavaScript
// 数据类型声明
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// import * as echarts from 'echarts';
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let data = JSON.parse(document.getElementById("data").innerText) // object
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const signChartDivTemplate = document.importNode(document.getElementById("sign-chart-template").content, true)
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data.forEach((item) => {
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let signChartDiv = signChartDivTemplate.cloneNode(true)
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let chartID = item["name"]
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// 初始化ECharts实例
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// 设置id
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signChartDiv.querySelector(".sign-chart").id = chartID
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document.body.appendChild(signChartDiv)
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let signChart = echarts.init(document.getElementById(chartID))
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let timeCount = []
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item["counts"].forEach((count, index) => {
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// 计算平均值，index - 1的count + index的count + index + 1的count /3
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if (index > 0) {
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timeCount.push((item["counts"][index] - item["counts"][index - 1]) / (60*(item["times"][index] - item["times"][index - 1])))
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}
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})
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console.log(timeCount)
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signChart.setOption(
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{
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animation: false,
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title: {
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text: item["name"],
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textStyle: {
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color: '#000000' // 设置标题文本颜色为红色
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}
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},
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xAxis: {
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type: 'category',
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data: item["times"].map(timestampToTime),
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},
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yAxis: [
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{
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type: 'value',
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min: Math.min(...item["counts"]),
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},
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{
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type: 'value',
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min: Math.min(...timeCount),
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}
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],
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series: [
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{
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data: item["counts"],
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type: 'line',
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yAxisIndex: 0
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},
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{
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data: timeCount,
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type: 'line',
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yAxisIndex: 1
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}
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]
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}
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)
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})
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function timestampToTime(timestamp) {
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let date = new Date(timestamp * 1000)
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let Y = date.getFullYear() + '-'
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let M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-'
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let D = date.getDate() + ' '
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let h = date.getHours() + ':'
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let m = date.getMinutes() + ':'
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let s = date.getSeconds()
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return M + D + h + m + s
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} |