API Reference > geometry-core > Polyface > PolyfaceQuery > boundaryOfVisibleSubset boundaryOfVisibleSubset MethodStatic Return the boundary of facets that are facing the eye. boundaryOfVisibleSubset(polyface: IndexedPolyface, visibilitySelect: | "1" | "2", vectorToEye: Vector3d, sideAngleTolerance: Angle = ...): undefined | CurveCollection Parameter Type Description polyface IndexedPolyface visibilitySelect | "1" | "2" vectorToEye Vector3d sideAngleTolerance Angle Returns - undefined | CurveCollection Defined in polyface/PolyfaceQuery.ts Line 460 Last Updated: 12 June, 2024