On Saturday 09 August 2008 04:46:29 Pat Naughtin wrote: > Essentially, the techniques you need to go so slowly toward > metrication can be summarised as: > > 1 Encourage the idea and practice of metric conversion.
How would you handle a field where, were everyone to metricate right now, data in old units would be still in use for at least a hundred years? In surveying, the document that first defines a lot is the controlling document. It may be dimensioned in meters, feet, chains, or maybe other units. It may refer to trees that don't exist any more. It may be illegible. It may be missing essential dimensions (many old maps have no bearings or curve radii). It may not close. It's still the controlling document and we have to go by it. And every time someone buys a lot, a surveyor has to go out there and make sense of that document. Pierre
