API Reference > geometry-core > CartesianGeometry > Ray3d > fractionToPoint fractionToPoint Method fraction 0 is the ray origin. fraction 1 is at the end of the direction vector when placed at the origin. fractionToPoint(fraction: number, result?: Point3d): Point3d Parameter Type Description fraction number result Point3d Returns - Point3d Return a point at fractional position along the ray. Defined in core/geometry/src/geometry3d/Ray3d.ts Line 165 Last Updated: 13 June, 2024