API Reference > geometry-core > CartesianGeometry > Vector3d > dotProductStartEndXYZW dotProductStartEndXYZW Method Dot product with vector from pointA to pointB, with pointB given as (weighted) x,y,z,w pointB is a homogeneous point that has to be unweighted if the weight is near zero metric, the return is zero. dotProductStartEndXYZW(pointA: Point3d, x: number, y: number, z: number, w: number): number Parameter Type Description pointA Point3d x number y number z number w number Returns - number Defined in core/geometry/src/geometry3d/Point3dVector3d.ts Line 1079 Last Updated: 13 June, 2024