A point used in the composition of boundary objects.

Note that Point3d objects can serve as boundary objects by themselves. In that situation, whether the condition is Crossing or Inside doesn't matter. Objects returned include the following.

Lines that are coincident with the point
Polylines if a straight segment is coincident
Circles and arcs if the center is coincident

Note that circles and arcs are returned only if the center is coincident. Coincidence of the curve doesn't matter. More complicated figures are returned only if a vertex or control point is coincident.