On Mar 28, 2:34 am, Marcelo <[email protected]> wrote: > > > 2 - request more than one point per query. > > The documentation indicates that queries with multiple points may > return less accurate results.
The degree to which the results may be less accurate is a function of the distance between them. This is not normally a problem because as the distance across which you are sampling increases the difference in elevation is likely to also increase, so the accuracy you need per sample drops. ie. If you're measuring the difference in elevation between Denver and San Francisco you probably don't need sub meter accuracy. But along a single street you probably do. So you should find the accuracy is appropriate to the scale of region you wish to plot, and that it does not suddenly drop off when you go from one sample to two. If in doubt, just bundling up your requests into ten nearby points at a time should still give you a high accuracy while cutting the number of requests you need to make by an order of magnitude. HTH, Thor. -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" 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-js-api-v3?hl=en.
