Bill
In Chile all the hectareage area measured as a projection over the xy plane
as an oficial measurement. However, as you said because of the big diference
when considering the slope, most forestry companies do the other calculation
when contracting jobs based on surface.
Juanse
-----Mensaje original-----
De: Bill Thoen <[EMAIL PROTECTED]>
Para: MapInfo-L <[EMAIL PROTECTED]>
Fecha: Mi�rcoles, 19 de Enero de 2000 08:49 p.m.
Asunto: MI A Question for Surveyors
>Is there a surveyor in the house?
>
>I was wondering how property boundary line distances and acreages
>are calculated in sloping terrain. Are boundary distances
>reported as the distance along the ground surface or are they
>recorded as projections of the distance along the ground into the
>x-y plane? In other words, if a line measured between two
>monuments is 1200 ft along the ground, and one monumnet is 600 ft
>higher than the other, is that leg recorded as being 1200 ft or
>1039.2 ft (1200*cos(30 degrees))?
>
>Given that, is acreage calculated based on surface area or as
>area projected into the X-Y plane? Seems to me if you have to
>pay $30,000/acre it would make a difference.
>
>- Bill Thoen
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