At 10:05 AM 07/14/1999 -0400, Mitchell, Will wrote:
>It boils down to this question - can Proportion Sum be used in an SQL
>select statement to obtain overlapped area?
Try this. It is a MapBasic statement, but they usually work in the SQL
dialog too.
AreaOverlap() Function
-------------------------------
Purpose
Returns the area resulting from the overlap of two closed objects.
Syntax
AreaOverlap ( object1, object2 )
object1 and object2 are closed objects.
Return Value
A Float value representing the area (in MapBasic's current area
units) of the overlap of the two objects.
Steve Wallace
GIS & Market Information Manager
Florida Farm Bureau Insurance Companies
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