API Reference > geometry-core > CartesianGeometry > Point3dArray > evaluateTrilinearWeights evaluateTrilinearWeights MethodStatic Compute the 8 weights of trilinear mapping By appropriate choice of weights, this can be used for both point and derivative mappings. evaluateTrilinearWeights(weights: Float64Array, u0: number, u1: number, v0: number, v1: number, w0: number, w1: number): void Parameter Type Description weights Float64Array preallocated array to receive weights. u0 number low u weight u1 number high u weight v0 number low v weight v1 number high v weight w0 number low w weight w1 number high w weight Returns - void Defined in core/geometry/src/geometry3d/PointHelpers.ts Line 351 Last Updated: 13 June, 2024