G’day John, > On 10 Apr 2020, at 10:03 AEST, John J Foster via 4D_Tech > <[email protected]> wrote: > > Many of the values are similar like 141.235 or 141 3.23 and so on.
Have a look at a world map with a grid and consider this: Geodata are shown in degrees and fractions of it and can be shown in different formats like: 143.754 ° E = 143° 59.5755’ E = 143° 59’ 34.5358” E Look at 0° Longitude (Greenwich)! Going to the Right means you are going East (+) and going to the Left means you are going West (-). In both directions it ends at 180° (International Date Line). Recap: E = + (Plus); W = - (Minus) For Latitude take a look at the Equator. When you travel north (N) (North Pole) you’re Positive (+), going South (S) to Antarctica you’re negative (-) Means: N = + (Plus); S = - (Minus) Suggestion: store the data as REAL in decimal degree format and you should be fine. Exercise: Name the town where I’m located when my position is: - 30.30225° 153.1086° Cheers Jörg ********************************************************************** 4D Internet Users Group (4D iNUG) Archive: http://lists.4d.com/archives.html Options: https://lists.4d.com/mailman/options/4d_tech Unsub: mailto:[email protected] **********************************************************************
