packagecom.qr.util;importjava.text.DecimalFormat;/***//TODOUV數(shù)據(jù)與風(fēng)速風(fēng)向數(shù)據(jù)轉(zhuǎn)化*/publicclassUVAndSD{/***UV數(shù)據(jù)計(jì)算速度*/publicstaticdoublevectorToSpeed(doubleuMs,doublevMs){doublewindAbs=Math.sqrt(Math.pow(uMs,2)+Math.pow(vMs,2));returnwindAbs;
}/***UV數(shù)據(jù)計(jì)算風(fēng)向*/publicstaticdoublevectorToDegrees(doubleuMs,doublevMs){
DecimalFormatdf=newDecimalFormat(“#.000”);doublewindAbs=Math.sqrt(Math.pow(uMs,2)+Math.pow(vMs,2));doublewindDirTrigTo=Math.atan2(uMs/windAbs,vMs/windAbs);doublewindDirTrigToDegrees=windDirTrigTo*180/Math.PI;doublewindDirTrigFromDegrees=windDirTrigToDegrees+180;returnDouble.parseDouble(df.format(windDirTrigFromDegrees));
}