AnalysisSystemForRadionucli.../src/utils/map.js

14 lines
602 B
JavaScript

/**
* 将十进制度格式的经度转换为度分秒
* @param {*} decimal
* @param {*} isLongitude 是不是经度
* @returns
*/
export function decimalToDms(decimal, isLongitude = true) {
const absoluteValue = Math.abs(decimal)
const degree = Math.floor(absoluteValue)
const minute = Math.floor((absoluteValue - degree) * 60);
const second = Math.round(((absoluteValue - degree) * 60 - minute) * 60)
const tail = isLongitude ? (decimal > 0 ? 'E' : decimal < 0 ? 'W' : '') : (decimal > 0 ? 'N' : decimal < 0 ? 'S' : '')
return `${degree}°${minute}'${second}"${tail}`
}