On May 31, 3:54 pm, JavaJive <[email protected]> wrote: > One problem is that in priniple the marker needs to go beyond the > physical map, or at least give the appearance of doing so, which is > achieved inherently by my existing method.
I should have been more explicit when I said "In Mercator, coordinate changes Δx and Δy are designed to be the same over short distances, and therefore so will be the azimuth ~ arctangent (Δx/Δy). " The latter is correct over long distances, too. That's why the Mercator projection became so important in navigation; draw a straight line on a map, measure its angle and set your compass, and you'll arrive at the desired location. These are called rhumb lines or loxodromes (but they are not usually the shortest route on the globe, which are called geodesics). -- Andy --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
