On 3/9/2011 2:27 PM, Darren New wrote:
> Tom Austin wrote:
>> Not exactly - we at times have to 'adjust' the coords to achieve
>> better accuracy once they are int he system. It sucks that after you
>> get a lot of data your client gives you the 'revised' requirements
>> that cause such changes.
>
> So the GPS is *not* something that uniquely identifies the pole, or the
> customer wouldn't be able to tell you it was wrong. :-) So that
> shouldn't be the PK in this case.
>
>> look at aerial imagery - see pole - that's the GPS.
>
> That's another way to do it. :-)
>
>> We have had clients require specs that someone in an office without
>> experience must have come up with. Must be withing xx accuracy - must
>> add up to +- xx difference. Possible, but very expensive to actually
>> meet the requirements.
>
> Yeah. When it comes time to mark the roads, they still send someone out
> with a metal detector and a can of spray paint.
>

I've used dowsing rods for the task before :-)

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