API Reference > geometry-core > CartesianGeometry > Matrix3d > xyzPlusMatrixTimesWeightedCoordinates xyzPlusMatrixTimesWeightedCoordinates MethodStatic Treat the 3x3 matrix and origin as upper 3x4 part of a 4x4 matrix, with 0001 as the final row. Multiply times point with coordinates [x,y,z,w] xyzPlusMatrixTimesWeightedCoordinates(origin: XYZ, matrix: Matrix3d, x: number, y: number, z: number, w: number, result?: Point4d): Point4d Parameter Type Description origin XYZ translation part (xyz in column 3) matrix Matrix3d matrix part (leading 3x3) x number x part of multiplied point y number y part of multiplied point z number z part of multiplied point w number w part of multiplied point result Point4d optional result. Returns - Point4d Defined in core/geometry/src/geometry3d/Matrix3d.ts Line 1375 Last Updated: 13 June, 2024