File size: 4,222 Bytes
1763ec8 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 |
/**
* 真太阳时计算测试 (独立版本)
*/
// 计算真太阳时偏移（分钟）
function calculateTrueSolarTimeOffset(longitude) {
return Math.round((longitude - 120) * 4);
}
// 测试城市数据
const CITIES = [
{ name: '上海', longitude: 121.4737 },
{ name: '杭州', longitude: 120.1536 },
{ name: '哈尔滨', longitude: 126.6424 },
{ name: '北京', longitude: 116.4074 },
{ name: '武汉', longitude: 114.3054 },
{ name: '西安', longitude: 108.9540 },
{ name: '成都', longitude: 104.0657 },
{ name: '昆明', longitude: 102.7123 },
{ name: '乌鲁木齐', longitude: 87.6177 },
{ name: '拉萨', longitude: 91.1172 },
];
console.log('═'.repeat(70));
console.log(' 真太阳时计算准确性测试');
console.log('═'.repeat(70));
console.log('');
console.log('说明: 中国标准时间基于东经120°，各地真太阳时与北京时间有偏差');
console.log('公式: 真太阳时偏移(分钟) = (当地经度 - 120) × 4');
console.log('');
console.log('─'.repeat(70));
for (const city of CITIES) {
const offset = calculateTrueSolarTimeOffset(city.longitude);
const offsetStr = offset >= 0 ? `+${offset}` : `${offset}`;
const hours = Math.abs(offset) >= 60 ? Math.floor(Math.abs(offset) / 60) : 0;
const minutes = Math.abs(offset) % 60;
const humanReadable = hours > 0
? `(${offset > 0 ? '快' : '慢'}${hours}小时${minutes > 0 ? minutes + '分钟' : ''})`
: `(${offset > 0 ? '快' : '慢'}${Math.abs(offset)}分钟)`;
console.log(`${city.name.padEnd(8)} | 经度: ${city.longitude.toFixed(2)}° | 偏移: ${offsetStr.padStart(4)}分钟 ${humanReadable}`);
}
console.log('');
console.log('─'.repeat(70));
// 示例：时辰边界影响演示
console.log('');
console.log('═'.repeat(70));
console.log(' 示例：时辰边界影响演示');
console.log('═'.repeat(70));
console.log('');
const EXAMPLES = [
{ city: '乌鲁木齐', longitude: 87.6177, clockTime: '12:00', description: '钟表显示中午12点' },
{ city: '乌鲁木齐', longitude: 87.6177, clockTime: '23:30', description: '钟表显示晚上23:30' },
{ city: '北京', longitude: 116.4074, clockTime: '23:30', description: '钟表显示晚上23:30' },
{ city: '上海', longitude: 121.4737, clockTime: '23:30', description: '钟表显示晚上23:30' },
];
// 时辰对照表
const getShiChen = (hour) => {
const shiChen = ['子', '丑', '丑', '寅', '寅', '卯', '卯', '辰', '辰', '巳', '巳', '午', '午', '未', '未', '申', '申', '酉', '酉', '戌', '戌', '亥', '亥', '子'];
return shiChen[hour] + '时';
};
for (const example of EXAMPLES) {
const offset = calculateTrueSolarTimeOffset(example.longitude);
const [h, m] = example.clockTime.split(':').map(Number);
let trueSolarMinute = m + offset;
let trueSolarHour = h;
while (trueSolarMinute >= 60) {
trueSolarHour++;
trueSolarMinute -= 60;
}
while (trueSolarMinute < 0) {
trueSolarHour--;
trueSolarMinute += 60;
}
while (trueSolarHour >= 24) {
trueSolarHour -= 24;
}
while (trueSolarHour < 0) {
trueSolarHour += 24;
}
const clockShiChen = getShiChen(h);
const trueShiChen = getShiChen(trueSolarHour);
const trueSolarTimeStr = `${String(trueSolarHour).padStart(2, '0')}:${String(Math.round(trueSolarMinute)).padStart(2, '0')}`;
const shiChenChanged = clockShiChen !== trueShiChen ? '⚠️ 时辰变化!' : '';
console.log(`📍 ${example.city} (东经${example.longitude.toFixed(1)}°)`);
console.log(` ${example.description}`);
console.log(` 钟表时间: ${example.clockTime} (${clockShiChen}) → 真太阳时: ${trueSolarTimeStr} (${trueShiChen}) ${shiChenChanged}`);
console.log('');
}
console.log('═'.repeat(70));
console.log(' 关键发现');
console.log('═'.repeat(70));
console.log('');
console.log('1. 东部城市（如上海、哈尔滨）真太阳时比北京时间快');
console.log('2. 西部城市（如成都、乌鲁木齐）真太阳时比北京时间慢');
console.log('3. 乌鲁木齐比北京慢约2小时10分钟，时辰差异最大');
console.log('4. 子时边界（23:00-01:00）附近出生者，地点选择尤为重要');
console.log('');
console.log('═'.repeat(70));
|