gdbPlacementOutside

no common points

gdbPlacementInside

the object is entirely inside the feature

gdbPlacementIntersect

the object intersects the feature

gdbPlacementOnBoundary

the boundary of the object and boundary of the feature have one or more common points, but interiors of features are not intersected

gdbPlacementEqual

the object equals the feature

gdbPlacementInclude

the feature is entirely inside the object

gdbPlacementEqualBoundary

a boundary of the object equals the feature. The boundaryNumber argument returns the corresponding boundary number.