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- Newsgroups: comp.sys.mac.programmer
- Path: sparky!uunet!pageworks.com!world!eff!sol.ctr.columbia.edu!usc!cs.utexas.edu!milano!cactus.org!rdd
- From: rdd@cactus.org (Robert Dorsett)
- Subject: Re: Map (was: Australian Mac systems)
- Message-ID: <1992Aug19.083051.26082@cactus.org>
- Organization: Capital Area Central Texas UNIX Society, Austin, Tx
- References: <1992Aug12.093523.3242@otago.ac.nz> <SES.92Aug18094734@cmns-moon.think.com> <jpugh-180892220449@90.20.3.212>
- Date: Wed, 19 Aug 1992 08:30:51 GMT
- Lines: 33
-
- In article <jpugh-180892220449@90.20.3.212> jpugh@apple.com (Jon Pugh) writes:
- >
- >I believe that I saw an astronomy program that allowed you to set its
- >location from the PRAM settings.
-
- Ah, but the problem with this is that while the data structures support
- very accurate coordinates, the Map interface itself only lets the user
- enter coordinates down to one minute of arc. This introduces an error of
- up to a half-mile or so, which can be significant for a lot of astronomical
- work--even casual amateur stuff. Thus, the user has to eventually "fine-
- tune" his position, even if the program defaults from the PRAM location, so
- the program ends up having to provide its own interface, anyway.
-
- Also, the Map structures don't permit the user to specify elevation, another
- useful datum.
-
- This lack of precision/elevation information contradicts the stated purpose
- of the Map, to some degree. Map's mainly a time-zone setter; but, properly
- designed, it could have been a very useful "front-end" for providing
- religious and social information for software used by cultures or religions
- based on lunar calendars.
-
- Oh, well. Maybe next time. :-)
-
-
-
-
-
-
- ---
- Robert Dorsett
- rdd@cactus.org
- ...cs.utexas.edu!cactus.org!rdd
-