API Reference > geometry-core > Numerics > Map4d > createVectorFrustum createVectorFrustum MethodStatic Create a map between a frustum and world coordinates. createVectorFrustum(origin: Point3d, uVector: Vector3d, vVector: Vector3d, wVector: Vector3d, fraction: number): Map4d | undefined Parameter Type Description origin Point3d lower left of frustum uVector Vector3d Vector from lower left rear to lower right rear vVector Vector3d Vector from lower left rear to upper left rear wVector Vector3d Vector from lower left rear to lower left front, i.e. lower left rear towards eye. fraction number front size divided by rear size. Returns - Map4d | undefined Defined in core/geometry/src/geometry4d/Map4d.ts Line 100 Last Updated: 13 June, 2024