API Reference > geometry-core > Polyface > SortableEdge > relativeOrientation relativeOrientation MethodStatic Return numeric relationship of edgeA and edgeB: 1 if they share start and end in the same order -1 if they share start and end in reversed order 0 otherwise. relativeOrientation(edgeA: SortableEdge, edgeB: SortableEdge): number Parameter Type Description edgeA SortableEdge edgeB SortableEdge Returns - number Defined in core/geometry/src/polyface/IndexedEdgeMatcher.ts Line 44 Last Updated: 15 June, 2021