419 lines
14 KiB
JavaScript
419 lines
14 KiB
JavaScript
const WeatherChart = {
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chart: null,
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display(historyData = [], forecastData = []) {
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historyData = Array.isArray(historyData) ? historyData : [];
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forecastData = Array.isArray(forecastData) ? forecastData : [];
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if (historyData.length === 0 && forecastData.length === 0) {
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return;
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}
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const allLabels = [...new Set([
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...historyData.map(item => item.date_time),
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...forecastData.map(item => item.date_time)
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])].sort();
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const historyTemperatures = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item ? item.temperature : null;
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});
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const historyHumidities = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item ? item.humidity : null;
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});
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const historyPressures = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item ? item.pressure : null;
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});
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const historyWindSpeeds = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item ? item.wind_speed : null;
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});
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const historyRainfalls = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item ? item.rainfall : null;
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});
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const historyRainTotals = allLabels.map(label => {
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const item = historyData.find(d => d.date_time === label);
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return item && item.rain_total !== undefined ? item.rain_total : null;
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});
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const byTime = new Map();
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forecastData.forEach(fp => {
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if (!byTime.has(fp.date_time)) byTime.set(fp.date_time, {});
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const bucket = byTime.get(fp.date_time);
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const h = typeof fp.lead_hours === 'number' ? fp.lead_hours : null;
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if (h !== null && h >= 0 && h <= 3) {
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// 保留同一 forecast_time+lead 的最新版本（查询结果已按 issued_at DESC 排序）
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if (bucket[h] == null) {
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bucket[h] = fp;
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}
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}
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});
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const getRainAtLead = (label, lead) => {
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const b = byTime.get(label);
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if (!b || !b[lead]) return null;
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return b[lead].rainfall != null ? b[lead].rainfall : null;
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};
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const getTempAtLead0 = (label) => {
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const b = byTime.get(label);
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if (!b || !b[0]) return null;
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return b[0].temperature != null ? b[0].temperature : null;
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};
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const forecastRainfallsH0 = allLabels.map(label => getRainAtLead(label, 0));
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const forecastRainfallsH1 = allLabels.map(label => getRainAtLead(label, 1));
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const forecastRainfallsH2 = allLabels.map(label => getRainAtLead(label, 2));
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const forecastRainfallsH3 = allLabels.map(label => getRainAtLead(label, 3));
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const pickNearest = (label, field) => {
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const b = byTime.get(label);
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if (!b) return null;
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if (b[0] && b[0][field] != null) return b[0][field];
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if (b[1] && b[1][field] != null) return b[1][field];
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if (b[2] && b[2][field] != null) return b[2][field];
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if (b[3] && b[3][field] != null) return b[3][field];
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return null;
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};
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const forecastTemperaturesNearest = allLabels.map(label => pickNearest(label, 'temperature'));
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const forecastHumiditiesNearest = allLabels.map(label => pickNearest(label, 'humidity'));
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const forecastPressuresNearest = allLabels.map(label => pickNearest(label, 'pressure'));
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const forecastWindSpeedsNearest = allLabels.map(label => pickNearest(label, 'wind_speed'));
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if (this.chart) this.chart.destroy();
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// 计算降水分类准确率（+1h/+2h/+3h）
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const updateAccuracyPanel = () => {
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// 仅在有历史数据（实际）时计算
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const usedIdx = historyRainfalls
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.map((v, idx) => ({ v, idx }))
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.filter(x => x.v !== null)
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.map(x => x.idx);
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const totalHours = usedIdx.length;
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const bucketOf = (mm) => {
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if (mm === null || mm === undefined || isNaN(Number(mm))) return null;
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const v = Math.max(0, Number(mm));
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if (v < 5) return 0;
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if (v < 10) return 1;
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return 2;
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};
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const calcFor = (arrFcst) => {
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let correct = 0;
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usedIdx.forEach(i => {
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const a = historyRainfalls[i];
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const f = arrFcst[i];
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const ba = bucketOf(a);
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const bf = bucketOf(f);
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if (ba !== null && bf !== null && ba === bf) correct += 1;
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});
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return { correct, total: totalHours };
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};
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const fmt = (n) => `${n.toFixed(1)}%`;
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const elPanel = document.getElementById('accuracyPanel');
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const elH1 = document.getElementById('accH1');
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const elH2 = document.getElementById('accH2');
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const elH3 = document.getElementById('accH3');
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if (!elPanel || !elH1 || !elH2 || !elH3) return;
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if (forecastData.length === 0 || totalHours === 0) {
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elPanel.style.display = 'none';
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return;
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}
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// 详细计算过程日志
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try {
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console.groupCollapsed('[准确率] 降水分档 (+1h/+2h/+3h) 计算详情');
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console.log('时间段总小时(有实测):', totalHours);
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const nameOf = (b) => (b===0?'[0,5)':(b===1?'[5,10)':'[10,∞)'));
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const fv = (v) => (v===null||v===undefined||isNaN(Number(v)) ? 'NULL' : Number(v).toFixed(2));
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usedIdx.forEach(i => {
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const label = allLabels[i];
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const a = historyRainfalls[i];
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const bA = bucketOf(a);
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const f1 = forecastRainfallsH1[i]; const b1 = bucketOf(f1);
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const f2 = forecastRainfallsH2[i]; const b2 = bucketOf(f2);
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const f3 = forecastRainfallsH3[i]; const b3 = bucketOf(f3);
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const m1 = (bA!==null && b1!==null && bA===b1) ? '√' : '×';
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const m2 = (bA!==null && b2!==null && bA===b2) ? '√' : '×';
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const m3 = (bA!==null && b3!==null && bA===b3) ? '√' : '×';
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console.log(
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`${label} | 实测 ${fv(a)}mm (${bA===null?'--':nameOf(bA)}) | +1h ${fv(f1)} (${b1===null?'--':nameOf(b1)}) ${m1} | +2h ${fv(f2)} (${b2===null?'--':nameOf(b2)}) ${m2} | +3h ${fv(f3)} (${b3===null?'--':nameOf(b3)}) ${m3}`
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);
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});
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} catch (e) { console.warn('准确率计算日志输出失败', e); }
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const r1 = calcFor(forecastRainfallsH1);
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const r2 = calcFor(forecastRainfallsH2);
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const r3 = calcFor(forecastRainfallsH3);
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console.log(`+1h: ${r1.correct}/${r1.total}`);
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console.log(`+2h: ${r2.correct}/${r2.total}`);
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console.log(`+3h: ${r3.correct}/${r3.total}`);
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console.groupEnd();
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elH1.textContent = r1.total > 0 ? fmt((r1.correct / r1.total) * 100) : '--';
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elH2.textContent = r2.total > 0 ? fmt((r2.correct / r2.total) * 100) : '--';
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elH3.textContent = r3.total > 0 ? fmt((r3.correct / r3.total) * 100) : '--';
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elPanel.style.display = 'block';
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};
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const datasets = [
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{
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label: '温度 (°C) - 实测',
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seriesKey: 'temp_actual',
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data: historyTemperatures,
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borderColor: 'rgb(255, 99, 132)',
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backgroundColor: 'rgba(255, 99, 132, 0.1)',
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yAxisID: 'y-temperature',
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tension: 0.4,
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spanGaps: false
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},
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{
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label: '湿度 (%) - 实测',
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seriesKey: 'hum_actual',
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data: historyHumidities,
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borderColor: 'rgb(54, 162, 235)',
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backgroundColor: 'rgba(54, 162, 235, 0.1)',
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yAxisID: 'y-humidity',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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},
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{
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label: '大气压 (hPa) - 实测',
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seriesKey: 'pressure_actual',
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data: historyPressures,
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borderColor: 'rgb(153, 102, 255)',
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backgroundColor: 'rgba(153, 102, 255, 0.1)',
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yAxisID: 'y-pressure',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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},
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{
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label: '风速 (m/s) - 实测',
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seriesKey: 'wind_actual',
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data: historyWindSpeeds,
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borderColor: 'rgb(75, 192, 192)',
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backgroundColor: 'rgba(75, 192, 192, 0.1)',
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yAxisID: 'y-wind',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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},
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{
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label: '雨量 (mm) - 实测',
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seriesKey: 'rain_actual',
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data: historyRainfalls,
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type: 'bar',
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backgroundColor: 'rgba(54, 162, 235, 0.6)',
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borderColor: 'rgb(54, 162, 235)',
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yAxisID: 'y-rainfall'
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},
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{
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label: '累计雨量 (mm) - 实测',
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seriesKey: 'rain_total',
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data: historyRainTotals,
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borderColor: 'rgb(75, 192, 192)',
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backgroundColor: 'rgba(75, 192, 192, 0.1)',
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yAxisID: 'y-rainfall',
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tension: 0.2,
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spanGaps: false,
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pointRadius: 0,
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hidden: true
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}
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];
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if (forecastData.length > 0) {
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datasets.push(
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{ label: '雨量 (mm) - 预报 (+1h)', seriesKey: 'rain_fcst_h1', data: forecastRainfallsH1, type: 'bar', backgroundColor: 'rgba(255, 99, 71, 0.55)', borderColor: 'rgb(255, 99, 71)', yAxisID: 'y-rainfall' },
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{ label: '雨量 (mm) - 预报 (+2h)', seriesKey: 'rain_fcst_h2', data: forecastRainfallsH2, type: 'bar', backgroundColor: 'rgba(255, 205, 86, 0.55)', borderColor: 'rgb(255, 205, 86)', yAxisID: 'y-rainfall' },
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{ label: '雨量 (mm) - 预报 (+3h)', seriesKey: 'rain_fcst_h3', data: forecastRainfallsH3, type: 'bar', backgroundColor: 'rgba(76, 175, 80, 0.55)', borderColor: 'rgb(76, 175, 80)', yAxisID: 'y-rainfall' }
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);
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datasets.push(
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{
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label: '温度 (°C) - 预报',
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seriesKey: 'temp_fcst',
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data: forecastTemperaturesNearest,
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borderColor: 'rgb(255, 159, 64)',
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backgroundColor: 'rgba(255, 159, 64, 0.1)',
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borderDash: [5, 5],
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yAxisID: 'y-temperature',
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tension: 0.4,
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spanGaps: false,
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hidden: true
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},
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{
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label: '湿度 (%) - 预报',
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seriesKey: 'hum_fcst',
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data: forecastHumiditiesNearest,
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borderColor: 'rgb(54, 162, 235)',
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backgroundColor: 'rgba(54, 162, 235, 0.1)',
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borderDash: [5, 5],
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yAxisID: 'y-humidity',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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},
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{
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label: '大气压 (hPa) - 预报',
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seriesKey: 'pressure_fcst',
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data: forecastPressuresNearest,
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borderColor: 'rgb(153, 102, 255)',
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backgroundColor: 'rgba(153, 102, 255, 0.1)',
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borderDash: [5, 5],
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yAxisID: 'y-pressure',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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},
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{
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label: '风速 (m/s) - 预报',
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seriesKey: 'wind_fcst',
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data: forecastWindSpeedsNearest,
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borderColor: 'rgb(75, 192, 192)',
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backgroundColor: 'rgba(75, 192, 192, 0.1)',
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borderDash: [5, 5],
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yAxisID: 'y-wind',
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tension: 0.4,
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hidden: true,
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spanGaps: false
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}
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);
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}
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const ctx = document.getElementById('combinedChart').getContext('2d');
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const chartConfig = {
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type: 'line',
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data: {
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labels: allLabels,
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datasets: datasets
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},
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options: {
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responsive: true,
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maintainAspectRatio: false,
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interaction: { mode: 'index', intersect: false },
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layout: { padding: { top: 12, right: 16, bottom: 12, left: 16 } },
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plugins: {
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legend: {
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display: true,
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position: 'top',
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align: 'center',
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labels: {
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padding: 16
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}
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}
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},
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scales: {
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'y-temperature': {
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type: 'linear',
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display: true,
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position: 'right',
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title: { display: true, text: '温度 (°C)' }
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},
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'y-humidity': {
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type: 'linear',
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display: true,
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position: 'right',
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title: { display: true, text: '湿度 (%)' },
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grid: { drawOnChartArea: false },
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min: 0,
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max: 100
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},
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'y-pressure': {
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type: 'linear',
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display: true,
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position: 'left',
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title: { display: true, text: '大气压 (hPa)' },
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grid: { drawOnChartArea: false }
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},
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'y-wind': {
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type: 'linear',
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display: true,
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position: 'left',
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title: { display: true, text: '风速 (m/s)' },
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grid: { drawOnChartArea: false },
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beginAtZero: true
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},
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'y-rainfall': {
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type: 'linear',
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display: true,
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position: 'right',
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title: { display: true, text: '雨量 (mm)' },
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grid: { drawOnChartArea: false },
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beginAtZero: true
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}
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}
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}
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};
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this.chart = new Chart(ctx, chartConfig);
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// 更新准确率面板
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updateAccuracyPanel();
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const mode = document.getElementById('legendMode')?.value || 'combo_standard';
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this.applyLegendMode(mode);
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}
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};
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WeatherChart.applyLegendMode = function(mode) {
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if (!this.chart) return;
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// 设置数据集可见性
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const map = new Map();
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this.chart.data.datasets.forEach(ds => {
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if (ds.seriesKey) map.set(ds.seriesKey, ds);
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});
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const setVisible = (keys) => {
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const allKeys = ['temp_actual','hum_actual','rain_actual','rain_total','temp_fcst','hum_fcst','pressure_actual','pressure_fcst','wind_actual','wind_fcst','rain_fcst_h1','rain_fcst_h2','rain_fcst_h3'];
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allKeys.forEach(k => { if (map.has(k)) map.get(k).hidden = true; });
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keys.forEach(k => { if (map.has(k)) map.get(k).hidden = false; });
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};
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switch (mode) {
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case 'verify_all':
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setVisible(['temp_actual','temp_fcst','hum_actual','hum_fcst','pressure_actual','pressure_fcst','wind_actual','wind_fcst','rain_actual','rain_fcst_h1','rain_fcst_h2','rain_fcst_h3']);
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break;
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case 'temp_compare':
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setVisible(['temp_actual','temp_fcst']);
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break;
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case 'hum_compare':
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setVisible(['hum_actual','hum_fcst']);
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break;
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case 'rain_all':
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setVisible(['rain_actual','rain_fcst_h1','rain_fcst_h2','rain_fcst_h3']);
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break;
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case 'pressure_compare':
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setVisible(['pressure_actual','pressure_fcst']);
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break;
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case 'wind_compare':
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setVisible(['wind_actual','wind_fcst']);
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break;
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case 'combo_standard':
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default:
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setVisible(['temp_actual','temp_fcst','rain_actual','rain_fcst_h1','rain_fcst_h2','rain_fcst_h3']);
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break;
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}
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this.chart.update();
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};
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WeatherChart.updateAxesVisibility = function() {
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if (!this.chart) return;
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// 检查每个轴是否有可见的数据集
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const hasVisibleDatasets = (axisId) => {
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return this.chart.data.datasets.some(ds => !ds.hidden && ds.yAxisID === axisId);
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};
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// 更新每个轴的显示状态
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Object.entries(this.chart.options.scales).forEach(([scaleId, scale]) => {
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const shouldDisplay = hasVisibleDatasets(scaleId);
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if (scale.display !== shouldDisplay) {
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scale.display = shouldDisplay;
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}
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});
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};
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window.WeatherChart = WeatherChart;
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