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KB10288 - DK function to provide polygon area or perimeter lenght.

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The DK function TGIS_Shape.Area (and .AreaCS) returns the area of the polygon, minus the area of any holes within the polygon.

The DK function TGIS_Shape.Length (and .LengthCS) returns length of the perimeter for a polygon shape and the length for a polyline shape.

Created: November 21, 2003, Modified: December 29, 2015