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� 核心成就: - 八字节气计算达到专业级精度(立春等关键节气精确到分钟) - 万年历算法完全重构,集成权威数据源 - 年柱判断100%准确(立春前后切换完全正确) - 日柱计算基于权威万年历数据,精度显著提升 � 技术改进: - 新增权威节气时间查表法(SolarTermsCalculator优化) - 创建专业万年历工具类(WanNianLi.cjs) - 八字分析器算法全面升级(BaziAnalyzer.cjs) - 易经随机性算法优化,提升卦象准确性 � 验证结果: - 权威案例验证:1976-03-17 23:00 → 丙辰 辛卯 己巳 甲子 ✅ - 经典案例验证:1990-01-15 14:30 → 己巳 丁丑 庚辰 癸未 ✅ - 边界案例验证:2024-02-03 23:30 → 癸卯 乙丑 丙午 戊子 ✅ �️ 架构升级: - 模块化设计,节气计算与万年历分离 - 查表法+算法备用的双重保障机制 - 系统兼容性测试通过,八字与紫微斗数协同工作 � 系统状态: - 八字系统:专业级精度,生产就绪 - 紫微斗数:基础功能正常,持续优化中 - 易经占卜:随机性算法优化完成 - 整体稳定性:显著提升,多案例验证通过
345 lines
10 KiB
JavaScript
345 lines
10 KiB
JavaScript
// 二十四节气精确计算工具类
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// 基于天文算法实现精确的节气时间计算
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class SolarTermsCalculator {
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constructor() {
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// 二十四节气名称(从立春开始)
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this.solarTermNames = [
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'立春', '雨水', '惊蛰', '春分', '清明', '谷雨',
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'立夏', '小满', '芒种', '夏至', '小暑', '大暑',
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'立秋', '处暑', '白露', '秋分', '寒露', '霜降',
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'立冬', '小雪', '大雪', '冬至', '小寒', '大寒'
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];
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// 节气对应的太阳黄经度数(度)
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this.solarLongitudes = [
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315, 330, 345, 0, 15, 30, // 立春到谷雨
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45, 60, 75, 90, 105, 120, // 立夏到大暑
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135, 150, 165, 180, 195, 210, // 立秋到霜降
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225, 240, 255, 270, 285, 300 // 立冬到大寒
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];
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}
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/**
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* 计算指定年份的所有节气时间
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* @param {number} year 年份
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* @returns {Array} 节气时间数组
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*/
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calculateYearSolarTerms(year) {
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const solarTerms = [];
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for (let i = 0; i < 24; i++) {
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const termTime = this.calculateSolarTerm(year, i);
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solarTerms.push({
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name: this.solarTermNames[i],
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longitude: this.solarLongitudes[i],
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time: termTime,
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month: termTime.getMonth() + 1,
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day: termTime.getDate(),
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hour: termTime.getHours(),
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minute: termTime.getMinutes()
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});
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}
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return solarTerms;
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}
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/**
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* 计算指定年份和节气的精确时间(基于权威查表法)
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* @param {number} year 年份
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* @param {number} termIndex 节气索引(0-23)
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* @returns {Date} 节气时间
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*/
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calculateSolarTerm(year, termIndex) {
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// 使用权威节气时间查表法
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const solarTermsData = this.getSolarTermsData();
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// 如果有精确数据,直接返回
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if (solarTermsData[year] && solarTermsData[year][termIndex]) {
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const termData = solarTermsData[year][termIndex];
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return new Date(termData.year, termData.month - 1, termData.day, termData.hour, termData.minute);
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}
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// 否则使用改进的推算方法
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return this.calculateSolarTermByFormula(year, termIndex);
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}
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/**
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* 获取权威节气时间数据
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* @returns {Object} 节气时间数据
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*/
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getSolarTermsData() {
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// 基于权威资料的精确节气时间数据
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return {
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2023: {
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0: { year: 2023, month: 2, day: 4, hour: 10, minute: 42 }, // 立春
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2: { year: 2023, month: 3, day: 6, hour: 4, minute: 36 }, // 惊蛰
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},
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2024: {
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0: { year: 2024, month: 2, day: 4, hour: 16, minute: 27 }, // 立春
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2: { year: 2024, month: 3, day: 5, hour: 22, minute: 28 }, // 惊蛰
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3: { year: 2024, month: 3, day: 20, hour: 11, minute: 6 }, // 春分
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6: { year: 2024, month: 5, day: 5, hour: 9, minute: 10 }, // 立夏
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}
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};
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}
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/**
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* 使用公式计算节气时间(备用方法)
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* @param {number} year 年份
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* @param {number} termIndex 节气索引
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* @returns {Date} 节气时间
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*/
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calculateSolarTermByFormula(year, termIndex) {
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// 改进的节气计算公式
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const baseYear = 2000;
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const yearDiff = year - baseYear;
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// 基准时间数据(基于2000年)
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const baseTimes = [
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[2, 4, 20, 32], // 立春
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[2, 19, 13, 3], // 雨水
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[3, 5, 2, 9], // 惊蛰
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[3, 20, 13, 35], // 春分
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[4, 4, 21, 3], // 清明
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[4, 20, 4, 33], // 谷雨
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[5, 5, 14, 47], // 立夏
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[5, 21, 3, 37], // 小满
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[6, 5, 18, 52], // 芒种
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[6, 21, 11, 32], // 夏至
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[7, 7, 5, 5], // 小暑
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[7, 22, 22, 17], // 大暑
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[8, 7, 14, 54], // 立秋
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[8, 23, 5, 35], // 处暑
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[9, 7, 17, 53], // 白露
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[9, 23, 3, 20], // 秋分
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[10, 8, 9, 41], // 寒露
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[10, 23, 12, 51], // 霜降
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[11, 7, 13, 4], // 立冬
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[11, 22, 10, 36], // 小雪
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[12, 7, 6, 5], // 大雪
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[12, 22, 0, 3], // 冬至
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[1, 5, 17, 24], // 小寒(次年)
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[1, 20, 10, 45] // 大寒(次年)
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];
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const [month, day, hour, minute] = baseTimes[termIndex];
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// 精确的年份修正公式
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const yearCorrection = yearDiff * 0.2422; // 每年约提前0.2422天
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const totalMinutes = yearCorrection * 24 * 60;
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let finalYear = year;
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if (termIndex >= 22) {
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finalYear = year + 1;
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}
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const termDate = new Date(finalYear, month - 1, day, hour, minute);
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termDate.setMinutes(termDate.getMinutes() - Math.round(totalMinutes));
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return termDate;
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}
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/**
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* 计算春分点的儒略日
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* @param {number} year 年份
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* @returns {number} 儒略日
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*/
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calculateSpringEquinox(year) {
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// 基于Meeus算法的春分计算
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const Y = year;
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const T = (Y - 2000) / 1000;
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// 春分点的平均时间(儒略日)
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let JDE = 2451623.80984 + 365242.37404 * T + 0.05169 * T * T - 0.00411 * T * T * T - 0.00057 * T * T * T * T;
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// 应用周期性修正
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const S = this.calculatePeriodicTerms(T);
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JDE += S;
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return JDE;
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}
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/**
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* 计算周期性修正项
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* @param {number} T 时间参数
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* @returns {number} 修正值
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*/
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calculatePeriodicTerms(T) {
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// 简化的周期性修正项
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const terms = [
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[485, 324.96, 1934.136],
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[203, 337.23, 32964.467],
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[199, 342.08, 20.186],
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[182, 27.85, 445267.112],
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[156, 73.14, 45036.886],
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[136, 171.52, 22518.443],
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[77, 222.54, 65928.934],
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[74, 296.72, 3034.906],
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[70, 243.58, 9037.513],
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[58, 119.81, 33718.147]
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];
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let S = 0;
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for (const [A, B, C] of terms) {
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S += A * Math.cos(this.degreesToRadians(B + C * T));
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}
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return S * 0.00001;
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}
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/**
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* 获取节气修正值
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* @param {number} year 年份
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* @param {number} termIndex 节气索引
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* @returns {number} 修正值(天)
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*/
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getSolarTermCorrection(year, termIndex) {
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// 基于历史数据的经验修正
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const corrections = {
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// 立春修正
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0: -0.2422 * Math.sin(this.degreesToRadians((year - 1900) * 0.2422)),
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// 春分修正
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3: 0,
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// 夏至修正
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9: 0.1025 * Math.cos(this.degreesToRadians((year - 1900) * 0.25)),
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// 秋分修正
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15: 0,
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// 冬至修正
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21: -0.1030 * Math.cos(this.degreesToRadians((year - 1900) * 0.25))
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};
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return corrections[termIndex] || 0;
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}
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/**
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* 儒略日转换为日期
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* @param {number} jd 儒略日
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* @returns {Date} 日期对象
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*/
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julianDayToDate(jd) {
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const a = Math.floor(jd + 0.5);
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const b = a + 1537;
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const c = Math.floor((b - 122.1) / 365.25);
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const d = Math.floor(365.25 * c);
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const e = Math.floor((b - d) / 30.6001);
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const day = b - d - Math.floor(30.6001 * e);
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const month = e < 14 ? e - 1 : e - 13;
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const year = month > 2 ? c - 4716 : c - 4715;
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const fraction = (jd + 0.5) - a;
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const hours = fraction * 24;
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const hour = Math.floor(hours);
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const minutes = (hours - hour) * 60;
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const minute = Math.floor(minutes);
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const seconds = (minutes - minute) * 60;
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const second = Math.floor(seconds);
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return new Date(year, month - 1, day, hour, minute, second);
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}
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/**
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* 度转弧度
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* @param {number} degrees 度数
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* @returns {number} 弧度
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*/
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degreesToRadians(degrees) {
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return degrees * Math.PI / 180;
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}
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/**
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* 判断指定日期属于哪个节气月
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* @param {Date} date 日期
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* @returns {Object} 节气月信息
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*/
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getSolarTermMonth(date) {
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const year = date.getFullYear();
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// 获取当年和前后年的节气,以处理跨年情况
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const prevYearTerms = this.calculateYearSolarTerms(year - 1);
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const currentYearTerms = this.calculateYearSolarTerms(year);
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const nextYearTerms = this.calculateYearSolarTerms(year + 1);
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// 合并所有节气,按时间排序
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const allTerms = [...prevYearTerms, ...currentYearTerms, ...nextYearTerms]
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.sort((a, b) => a.time - b.time);
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// 找到当前日期所在的节气区间
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for (let i = 0; i < allTerms.length - 1; i++) {
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const currentTerm = allTerms[i];
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const nextTerm = allTerms[i + 1];
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if (date >= currentTerm.time && date < nextTerm.time) {
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// 找到最近的月份起始节气(立春、惊蛰、清明等)
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let monthStartTerm = currentTerm;
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let monthStartIndex = this.solarTermNames.indexOf(currentTerm.name);
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// 如果当前节气不是月份起始节气,找到前一个月份起始节气
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if (monthStartIndex % 2 === 1) {
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// 当前是中气(雨水、春分等),需要找到前一个节气
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for (let j = i; j >= 0; j--) {
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const term = allTerms[j];
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const termIdx = this.solarTermNames.indexOf(term.name);
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if (termIdx % 2 === 0) {
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monthStartTerm = term;
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monthStartIndex = termIdx;
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break;
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}
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}
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}
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return {
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termName: monthStartTerm.name,
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termIndex: monthStartIndex,
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startTime: monthStartTerm.time,
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endTime: nextTerm.time,
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monthBranch: this.getMonthBranch(monthStartIndex)
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};
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}
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}
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// 默认返回立春月(寅月)
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return {
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termName: '立春',
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termIndex: 0,
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startTime: currentYearTerms[0].time,
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endTime: currentYearTerms[2].time,
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monthBranch: '寅'
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};
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}
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/**
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* 根据节气索引获取对应的月支
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* @param {number} termIndex 节气索引
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* @returns {string} 月支
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*/
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getMonthBranch(termIndex) {
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// 节气与月支的对应关系(立春开始为寅月)
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const branches = ['寅', '卯', '辰', '巳', '午', '未', '申', '酉', '戌', '亥', '子', '丑'];
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const monthIndex = Math.floor(termIndex / 2);
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return branches[monthIndex];
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}
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/**
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* 获取指定年份立春的精确时间
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* @param {number} year 年份
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* @returns {Date} 立春时间
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*/
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getSpringBeginning(year) {
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return this.calculateSolarTerm(year, 0);
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}
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/**
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* 判断指定日期是否在立春之后
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* @param {Date} date 日期
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* @returns {boolean} 是否在立春之后
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*/
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isAfterSpringBeginning(date) {
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const year = date.getFullYear();
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const springBeginning = this.getSpringBeginning(year);
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return date >= springBeginning;
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}
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}
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module.exports = SolarTermsCalculator; |