gpsCalc v2 by znight@tom.com

һγȼ

Ҫ
1γUTMת
2ͷļ㣬Բ̣͹̶У
3ݾͷĿ
4ؼϵλγ
5ճʱ
6ƫǼ

Դ
󲿷ֹؼϵλγhttp://www.godeyes.cn
Ϊֹ20051231յĹұ׼(ⲿֳ)
شųNOAA

㷨ã
http://www.movable-type.co.uk/scripts/LatLong.html
http://williams.best.vwh.net/sunrise_sunset_algorithm.htm
http://www.ngdc.noaa.gov/seg/WMM/soft.shtml

ߣ
c2g.pl ļ(citys.txt)תΪkmlļ(citys.kml)
g2c.pl kmlļ(c2gɵ)תļ
upd.pl ļ(g2cɵ)תɳļ(citys.txt.new)

Q&A:
ʲôǴԲͽǶ
	ͨĵԲ(ʵʶΪԲ)Բ֮Ļ̵ģ
	Ҳ˵Բ̵֮ľ롣
	ǣڴԲ;иĽǶȲһģ˴㵽յĺҲǲģ
	ǶȴӳʼǶȱ仯ֹǶȡ
	ڵ㣨0N0E0N180E,10N100E10S80W֮ĴԲǲȷ
	ģ˱㷨ĴԲͽǶȲһȷ
ʲôǹ̶ͽǶ
	ڴԲĽǶǲģ˲ںʱá̶Ϊ
	ġڹ̶У㵽յľ·ͬĽǶиеľߣ
	˳ʼǶȺֹǶͬġڹ̶벻ǴԲ룬·
	̵ġ
ƫô
	ĴżڱϼϣбȽϴƫơ⣬żÿʱÿ̶
	ڲͣ˶šУ̫ҲӰ˵شųˣشųһ״
	ͨԲ鵽ϼĴƫǵݣȻùʽط
	Ĵ	ƫǡƫǳ˺;γأʱ䡢߳ءڼ2005
	2010Ĵƫݡ̶߳ڴƫǵӰȽСвõĸ߳
	Ϊ0ƫΪʾżƫʾżƫ