API Reference > geometry-core > Bspline > AkimaCurve3d > dispatchToGeometryHandler dispatchToGeometryHandler Method "double dispatch" call pattern. User code implements a GeometryHandler with specialized methods to handle LineSegment3d, Arc3d etc as relevant to its use case. Each such GeometryQuery class implements this method as a one-line method containing the appropriate call such as handler.handleLineSegment3d () This allows each type-specific method to be called without a switch or instanceof test. dispatchToGeometryHandler(handler: GeometryHandler): any Parameter Type Description handler GeometryHandler Returns - any Defined in bspline/AkimaCurve3d.ts Line 97 Last Updated: 11 June, 2024