Re: A question re waypoint format

>But the Vito map manager require the coordination in the format of
>degrees and minutes, and the minutes should be integer between 0-60.

>So how do I translate?

With no insalt intendend (as many have asked the same question), I am amazed
that people cannot do this simple calculation as it shows how schools have
failed in teaching mathematiics.

Below is something I once posted here several times...


To convert Degrees-Minutes-Seconds (DMS) to decimal degrees (dd.ddddd),


dd.ddddd = D + M/60 + S/3600


To convert decimal degrees (dd.ddddd) to Degree-Minutes-Seconds (DMS),


D = int(dd.ddddd) int = the integer or whole number part (the part in
front of the decimal


M = int((dd.ddddd - D)*60)


S = (dd.ddddd - (D + M/60))*3600


To convert degrees-decimal minutes (Dmm.mmm) to decimal degrees (dd.ddddd),


dd.ddddd = D + mm.mmm/60


To convert decimal degrees (dd.ddddd) to degrees-decimal minutes (Dmm.mmm),


D = int(dd.ddddd)


mm.mmm = (dd.ddddd-D)*60


To convert degrees-decimal minutes (Dmm.mmm) to Degrees-Minutes-Seconds
(DMS),


D = D


M = int(mm.mmm)


S = (mm.mmm-M)*60


To convert Degrees-Minutes-Seconds (DMS) to degrees-decimal minutes
(Dmm.mmm)


D = D


mm.mmm = M+S/60


If you are going to do a calculation that involves trigonometric functions
of latitude or longitude on a caculator, be sure that it is in degree mode
and use decimal degrees. If in radians mode, you need to convert decimal
degrees into radians by multiplying by pi/180 (which is about 0.01745329,
that should be accurate enough) before entering the number into the
calculator.



.

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