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@class90431/calc-sun-position

v1.0.2

Published

calculate sun azimuth & elevation

Downloads

7

Readme

@class90431/calc-sun-position

簡介

  • 用於計算太陽:
    • 方位角
    • 高度角

安裝

npm install --save @class90431/calc-sun-position

導入

const calculateSunAzEl = require("@class90431/calc-sun-position");

參數

  • year
    • 西元
  • month
    • 月份
  • day
    • 日期
  • hour
    • 24 小時制
  • minute
    • 分鐘數
  • second
    • 秒數
  • lat
    • 緯度
  • lon
    • 經度
  • tz
    • 時區(例如:台灣時區是 + 8, 則填入 8 即可。)

範例

const calculateSunAzEl = require('@class90431/calc-sun-position')

// calculateSunAzEl(year, month, day, hour, minute, second, lat, lon, tz)
const result = calculateSunAzEl(2020, 12, 31, 12, 0, 0, 25, 121, 8)
console.log(result) // { azimuth: 180.29392587236583, elevation: 41.952069876326135 }

備註

  • 得到的值,單位皆為度。
  • azimuth ( 方位角 ) : 以正北為 0 ; 正東為 90 ; 正南為 180 ; 正西為 270。
  • elevation (高度角) : 水平地面為 0 ; 觀測點正上方為 90。

參考