API Reference > geometry-core > Polyface > PolyfaceBuilder > addBetweenLineStringsWithRuleEdgeNormals addBetweenLineStringsWithRuleEdgeNormals Method Add facets between lineStrings with matched point counts. surface normals are computed from (a) curve tangents in the linestrings and (b)rule line between linestrings. Facets are announced to addIndexedQuad. addIndexedQuad is free to apply reversal or triangulation options. addBetweenLineStringsWithRuleEdgeNormals(lineStringA: LineString3d, vA: number, lineStringB: LineString3d, vB: number, addClosure: boolean = false): void Parameter Type Description lineStringA LineString3d vA number lineStringB LineString3d vB number addClosure boolean Returns - void Defined in core/geometry/src/polyface/PolyfaceBuilder.ts Line 773 Last Updated: 13 June, 2024