API Reference > geometry-core > CartesianGeometry > ClipPlane > isPointOnOrInside isPointOnOrInside Method Return true if spacePoint is inside or on the plane, with tolerance applied to "on". isPointOnOrInside(spacePoint: Point3d, tolerance: number = Geometry.smallMetricDistance): boolean Parameter Type Description spacePoint Point3d point to test. tolerance number tolerance for considering "near plane" to be "on plane" Returns - boolean Defined in core/geometry/src/clipping/ClipPlane.ts Line 328 Last Updated: 13 June, 2024