Dear all
I was happily using the syntax below to work out
some areas, it works fine in most cases.
Select Sum(AreaOverLap(Health.Obj,Buffer.Obj)) From Health, Buffer Where
Health.Obj Intersects Buffer.Obj .....but I get an error message sometimes
"an error occurred overlaying the objects"
in one case the area value returned was not the intersection
of the two regions but the area of the health zone outside the buffer, oddly the
other 3 segments were OK, obviously something wrong with my health regions (I
think) any ideas??
Cheers
Mick
Map Factory
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MI - error occurred overlaying objects
SOLOMON ISLANDS POPULATION CENSUS Mon, 27 Sep 1999 18:43:18 -0700