[OSM-talk] Mapping distant objects by triangulation.

I couldn't find the other thread on this topic. How do you map an object, like a tower on top of a mountain, that you don't have access to without expensive survey equipment? My thought is to use a plumb bob to line up the unknown object with some known objects. I would find something like a

Re: [OSM-talk] Mapping distant objects by triangulation.

. Cheers Andy -Original Message- From: [EMAIL PROTECTED] [mailto:talk- [EMAIL PROTECTED] On Behalf Of Jeffrey Martin Sent: 12 May 2008 9:48 PM To: OSM Talk Subject: [OSM-talk] Mapping distant objects by triangulation. I couldn't find the other thread on this topic. How do you map

Re: [OSM-talk] Mapping distant objects by triangulation.

In theory, yes. In practice, maybe. You would find that if you did a third measuring line, it probably wouldn't intersect where the first two did. Small errors at the measuring end cause massive errors at the other end. Even the guys with the specialist measuring equipment working on a