I'm so confused. I'm finally getting around to needing to do a 'store locator' thing.
I procured myself some zip/lat/long databases from various places. Then I noticed that for the same zip code, I got different values in different databases??!!! So for a sanity check, I decided to look "online" and punch in some to see what the "real" lat/long should be. Well, different sites give different values, and not only are they "slightly" off, but sometimes they're _positive_ or _negative_!? UGH! http://www.zipinfo.com/cgi-local/zipsrch.exe?ll=ll&zip=98119&Go=Go Seattle WA 98119 47.6388 122.3700 http://www.census.gov/cgi-bin/gazetteer?city=&state=&zip=98119 Location: 47.637917 N, 122.364272 W http://www.csgnetwork.com/cgi-bin/zipcodes.cgi?Zipcode=98119 http://www.myzipdb.com/mzdb_demo.php http://www.nearby.org.uk/coord.cgi?p=98119 City Seattle State Abbreviation WA State Washington Latitude 47.638770 Longitude -122.366941 So I try the east coast: http://www.zipinfo.com/cgi-local/zipsrch.exe?ll=ll&zip=14526&Go=Go Penfield NY 14526 43.1532 77.4485 http://www.census.gov/cgi-bin/gazetteer?city=&state=&zip=14526 Location: 43.139638 N, 77.456043 W http://www.csgnetwork.com/cgi-bin/zipcodes.cgi?Zipcode=14526 http://www.nearby.org.uk/coord.cgi?p=14526&f=full City Penfield State Abbreviation NY State New York Latitude 43.145342 Longitude -77.458499 Please help me to understand WTF is going on? Which lat/long do I need? How does the negatives effect the magic formulas to calculate distances? (I'm no trig wiz). I assume that the more precise the numbers, the better the results will be. To what decimal point should I be concerned with? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
