Rough calculation: Earth radius = 6371 km Earth circumference along a great circle = radius*2*PI = 40030 km 1 degree = 40030 km / 360 = 111.2 km (that's a degree of long at the equator, or a degree of lat anywhere)
0.001 degree = 111 meters 0.0001 degree = 11.1 meters 0.00001 degree = 1.11 meters 0.000001 degree = 0.111 meters etc... You can compare the results of GPolyline.getLength() or GLatLng.distanceFrom() with those of the distance function in the SQL statement I posted in this thread, which if I remember correctly, is based on vector algebra, setting two vectors with origin at the center of a perfect sphere: http://groups.google.com/group/Google-Maps-API/browse_thread/thread/dd6255740040d317 -- Marcelo - http://maps.forum.nu -- --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
