API Reference > geometry-core > CartesianGeometry > Point3dArray > evaluateTrilinearPoint evaluateTrilinearPoint MethodStatic Compute a point by trilinear mapping. evaluateTrilinearPoint(points: Point3d[], u: number, v: number, w: number, result?: Point3d): Point3d Parameter Type Description points Point3d[] array of 8 points at corners, with x index varying fastest. u number v number w number result Point3d optional result point Returns - Point3d Defined in core/geometry/src/geometry3d/PointHelpers.ts Line 416 Last Updated: 13 June, 2024