ExcludedAreaType

The excluded region is a circle with the center at the first point of 'points' and a radius equal to 'extent'. The 'points' must contain exactly one point, otherwise the query fails.

The excluded area is a polyline with width equal to 'extent' (points - line nodes).

The excluded region is a polygon with vertices at 'points'. In this case, the sides of the polygon are additionally indented by 'extent'.