API Reference > geometry-core > Polyface > IndexedPolyfaceVisitor > tryGetDistanceParameter tryGetDistanceParameter Method Attempts to extract the distance parameter for the given vertex index on the current facet Returns the distance parameter as a point. Returns undefined on failure. tryGetDistanceParameter(index: number, result?: Point2d): Point2d | undefined Parameter Type Description index number result Point2d Returns - Point2d | undefined Defined in core/geometry/src/polyface/Polyface.ts Line 655 Last Updated: 13 June, 2024