Constructs a n convex open or closed polyline clip boundary (one or more edges). 

If the polyline is not closed, the end segments are treated as if they extend to infinity. 

Input segments that lie on the boundary are considered "inside." 

Counterclockwise orientation is assumed if there is only one non-colinear clipping edge in the polygon. (Counterclockwise orientation implies that, facing from vertex n to vertex n+1, the region to the left of the segment [n,n+1] is "inside" the region.) If more than one non-colinear edge is supplied, the orientation that produces a convex edge is automatically determined. 

There is currently no test to verify that the input polygon is convex.

Public Sub New(
    clipBoundary As Point2dCollection
)

public ClipBoundary2d(
    Point2dCollection clipBoundary
);