On Dec 27, 6:04 pm, robert <[email protected]> wrote: > How can I calculate the physical length of roadway within chosen area > (e.g. 10 square km rectangle)? That is to say the length that would be > given if all the sections of roadway were laid out end to end.
I don't believe you could do it entirely automatically: there would have to be some interaction, I think. You could have a system which first drew your square, then allowed the user to position two markers and get the directions from one to the other: that would give a length. Do it again for another two markers, and so on. Keep a running total of each journey. Be careful of dual- carriageways and one-way streets. There are sources of potentially significant error in using the API, though, so I don't think you should rely very heavily on the result. Andrew --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
