----- Original Message -----
From: "Thomas Brix Lyng" <[EMAIL PROTECTED]>
To: "'Spencer Simpson'" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, September 01, 2000 3:01 AM
Subject: Re: MI How does MapInfo handles muliple Projections in the same
window?
> Hi
>
> Just a little note on the subject of using coordinates in lat/lon:
>
> MapInfos Longitude/latitude is based on (Degrees,Minuts,DecimalSeconds)
not
> (Degress,Minuts,Seconds) as used by most sea-GPS recivers. So You would
have
> to convert your coordinates to the right format before using them in
> MapInfo.
Well, MapInfo really stores angles (latitudes and longitudes) the way it
does
all coordinates: as binary floating-point numbers unrelated to any
decimal format.
When converting these numbers to and from strings, it uses the
"decimal degrees" format, not involving minutes or seconds. Since there are
many, many different "degree-minute-second" formats out there, conversion
routines need to be written appropriate to the application the angles will
be
used in.
----------------------------------------------------------------------
To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
"unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
